Homepage of Geir Oien (ien)

 

 

Geir E. ien

PhD, Senior Member IEEE

Full Professor, Signal Processing Group

Department of Electronics and Telecommunications

Norwegian University of Science and Technology (NTNU)

 

Contact details

 

Postal address:            Geir E. ien

Institutt for elektronikk og telekommunikasjon (IET)

NTNU

N-7491 Trondheim

NORWAY

E-mail:                         geir.oien at iet.ntnu.no

Office phone:              +4773594315

Mobile phone:             +4793455408

Fax:                             +4773592640

Webpage:                    http://www.iet.ntnu.no/~oien

Secretary:                    Mrs. Kirsten Ekseth, +47734594318

Visits:                          Office C349 in building Elektroblokk C

OS Bragstads plass 2A

                                    NTNU – Glshaugen

Trondheim, Norway

 

Biography

 

Geir Egil ien (Oien) was born in Trondheim, Norway in 1965. He received the MScEE and the PhD degrees, both from the Norwegian Institute of Technology (NTH) in Trondheim, Norway, respectively in 1989 and 1993. From 1994 to 1996 he was an Associate Professor with Stavanger University College in Stavanger, Norway. In 1996, he joined NTNU as an Associate Professor, and in 2001 was promoted to Full Profes­sor. During the academic year 2005-2006 he was visiting professor with Institut Eurcom in Sophia-Antipolis, France.

 

Prof. ien is the author or co-author of more than 90 scientific publications in refereed international fora (for full list sorted by year, see end of page). He currently supervises or co-supervises 6 PhD students, and has formerly graduated 8 PhD students (for full list, see below). He participates in, manages, and/or coordinates a number of national and international projects and networks of collaboration (for list, see below). His current research interests are in communication theory, information theory, and signal processing for wireless communications and sensor networks, with particular emphasis on link adaptation, power control, radio resource allocation, interference mitigation, access schemes, and cross-layer design.

 

Research projects

 

CUBAN - Co-optimized Ubiquitous Broadband Access Networks

CROPS - CRoss-layer OPtimization in Short-range wireless sensor networks

SECOMAS – Spectrally Efficient COMmunications for future Aeronautical Services

SENDORA – Sensor Network aiDed cOgnitive Radio (STREP, EU 7FP Call 1)

CORAL – Cooperative and Opportunistic Resource ALlocation in wireless networks

BEATS - Bandwidth-Efficient and Adaptive Transmission Schemes for wireless multimedia communications (ended 2007)

TURBAN - TURBo codes, Access and Network technologies related to UMTS (ended 2005)

WIRAC  - WIdeband Radio Access (ended 2002)

 

International networks of collaboration

 

COST2100 – Pervasive Mobile and Ambient Wireless Communications

NEWCOM - Network of Excellence in Wireless COMmunications (ended 2007)

COST 273 - Towards Mobile Multimedia Broadband Networks (ended 2005)

COST 289 - Spectrum and Power Efficient Broadband Communications (ended 2006)

 

 

Main external collaborators

 

Prof. Mohamed-Slim Alouini (Texas A&M University at Education City, Quatar)

Prof. David Gesbert (Institut Eurcom, Sophia-Antipolis, France)

Prof. Aawatif Menouni Hayar (Institut Eurcom, Sophia-Antipolis, France)

Prof. Kjell Jrgen Hole (University of Bergen, Bergen, Norway)

Prof. Saska Lindfors (Helsinki University of Technology, Helsinki, Finland)

Dr. Pl Orten (Nera Research and UniK, Oslo, Norway)

Prof. Mikael Skoglund (Royal Institute of Technology (KTH), Stockholm, Sweden)

Prof. Hong-Chuan Yang (University of Victoria, Victoria, Canada)

 

PhD students

 

Jawad Rasool (2007 – present)

Mariam Kaynia (2007 – present)

Majid Butt (co-supervisor; 2006 – present)

Changmian Wang (2006 - present)

Asghar Havashki (co-supervisor, 2004 - present)

Anders Gjendemsj (2004 – present; graduation scheduled for Nov. 23rd, 2007)

Frode Bhagen (co-supervisor; graduated June 2007; currently with Telenor R&I)

Fredrik Hekland (co-supervisor; graduated June 2007; currently with ABB Corporate Research Center; thesis found here)

Sbastien F. G. M. de la Kethulle de Ryhove (graduated April 2007; currently with Electromagnetic Geoservices (EMGS); thesis found here)

Vegard Hassel (graduated March 2007; currently with Telenor R&I; thesis found here)

Duc Van Duong (graduated September 2006; currently with The Norwegian Defense Research Establishment (FFI); thesis found here)

Bengt Holter (graduated June 2005; currently with SINTEF ICT; thesis found here)

Ola Jetlund (graduated April 2005; currently with Oslo University College; thesis found here)

Henrik Holm (graduated April 2002; currently with Honeywell Corp.; thesis found here)

 

Post-doctoral fellows

 

Dr. Chung-Shue (Calvin) Chen (2007 – 2008; 9 months ERCIM fellowship)

Dr. Liuguo Yin (2007 – 2008; 12 months ERCIM fellowship)

Dr. Hend Koubaa (2004 – 2005; 9 months ERCIM fellowship)

Dr. Henrik Holm (2002 – 2004; 24 months NTNU fellowship)

 

Current teaching

 

TTT4160 Mobile communications (4th year MSc level)

TTT09 Communication and coding theory for wireless channels (5th year MSc level)

TTT4510 Digital communications, specialization project (5th year MSc level; coordinator)

TTT4515 Digital communications, specialization course (5th year MSc level; coordinator)

TTT8106 Selected topics in communication theory for wireless channels (PhD level)

 

Personal interests and favourites

Music, wine (Bourgogne in France and Piemonte in Italy are my favourite wine areas; Pinot Noir and Nebbiolo are my favourite red grapes), gastronomy (if in Trondheim and looking for a gourmet experience, do not miss Credo Restaurant & Bar!), cooking, travel (France and Italy are two favourite holiday destinations), books (of Norwegian authors, Agnar Mykle, Knut Hamsun and Jens Bjrneboe are old favourites), movies, swimming (when in Trondheim, be sure to visit the great indoor swimming/bathing facility Pirbadet),

 

Full list of scientific publications (sorted by year)

 

To appear:

 

1.     F. Bhagen, P. Orten, and G. E. ien, On Spherical vs. Plane Wave Modeling of Line-of-Sight MIMO Channels, conditionally accepted for publication in IEEE Transactions on Communications (subject to reviewers' and editor's final approval of revised version currently in preparation), 2007.

 

2.     F. Bhagen, P. Orten, G. E. ien, and S. de la Kethulle de Ryhove, Exact Capacity Expressions for Dual-Branch Ricean MIMO Systems, conditionally accepted for publication in IEEE Transactions on Communications (subject to reviewers' and editor's final approval of revised version currently in preparation), 2007.

 

3.     A. Gjendemsj, D. Gesbert, G. E. ien, and S. G. Kiani, Binary Power Control for Sum Rate Maximization over Multiple Interfering Links, to appear in IEEE Transactions on Wireless Communications, 2007.

 

4.     S. de la Kethulle de Ryhove, G. E. ien, and L. Lundheim, An Efficient Design Methodology for Constant Power Link Adaptation Schemes in Short-Range Scenarios, to appear in IEEE Transactions on Vehicular Technology, 2007.

 

5.     D. V. Duong, B. Holter, and G. E. ien, Analysis and Optimization of Adaptive Coded Modulation Systems in Spatially Correlated SIMO Rayleigh Fading Channels, to appear in IEEE Transactions on Vehicular Technology, 2007.

 

6.     A. Gjendemsj, H.-C. Yang, G. E. ien, and M.-S. Alouini, Joint Adaptive Modulation and Diversity Combining with Downlink Power Control, to appear in IEEE Transactions on Vehicular Technology, 2007.

 

7.     V. Hassel, G. E. ien, and D. Gesbert, Throughput Guarantees for Wireless Networks with Opportunistic Scheduling: A Comparative Study, to appear in IEEE Transactions on Wireless Communications, 2007.

 

8.     B. Holter and G. E. ien, Performance Analysis of a Rate-Adaptive Dual-Branch Switched Diversity System, to appear in IEEE Transactions on Communications, 2007.

 

9.     D. Gesbert, A. Gjendemsj, S. G. Kiani, and G. E. ien, Adaptation, Coordination, and Distributed Resource Allocation in Interference-Limited Wireless Networks, to appear in Proceedings of the IEEE (invited paper in upcoming special issue on adaptive transmission), Vol. 95, no. 10, October 2007.

 

2007:

 

1.      F. Bhagen, P. Orten, and G. E. ien, Optimal Design of Uniform Rectangular Antenna Arrays for Strong Line-of-Sight Channels, EURASIP Journal on Wireless Communications and Networking – Special Issue on Smart Antennas for Next-Generation Wireless Systems, vol. 2007, Article ID 45084, 10 pages, 2007. DOI:10.1155/2007/45084.

 

2.     V. Hassel, M.-S. Alouini, D. Gesbert, and G. E. ien, A Threshold-Based Channel State Feedback Algorithm for Modern Cellular Systems, IEEE Transactions on Wireless Communications, vol. 6, no. 7, pp. 2422 – 2426, July 2007.

 

3.     B. Holter and G. E. ien, Impact of Spatial Correlation on Adaptive Coded Modulation Performance in Rayleigh Fading, IEEE Transactions on Vehicular Technology, vol. 56, no. 3, pp. 1176-1186, May 2007.

 

4.     F. Bhagen, P. Orten, and G. E. ien, Design of Capacity-Optimal High-Rank Line-of-Sight MIMO Channels, IEEE Transactions on Wireless Communications, vol. 6, no. 4, pp. 1420-1425, April 2007.

 

5.     D. V. Duong and G. E. ien, Optimal Pilot Spacing and Power in Rate-Adaptive MIMO Diversity Systems with Imperfect CSI, IEEE Transactions on Wireless Communications, vol. 6, no. 3, pp. 845-851, March 2007.

 

6.     A. Gjendemsj, H.-C. Yang, G. E. ien, and M.-S. Alouini, Joint adaptive modulation, diversity combining, and power control for downlink transmission in two-cell wireless networks, to appear in Proc. Asilomar Conference on Signals, Systems, and Computers 2007, Pacific Grove, USA, November 2007 (invited).

 

7.     V. Hassel, S. de la Kethulle de Ryhove, and G. E. ien, Wireless scheduling algorithms for increased throughput guarantees in wireless networks, to appear in Proc. IEEE ISWCS 2007, Trondheim, Norway, October 2007.

 

8.     A. Gjendemsj, H.-C. Yang, M.-S. Alouini, and G. E. ien, Joint adaptive modulation, diversity combining, and power control for uplink transmission in two-cell wireless networks, to appear in Proc. IEEE ISWCS 2007, Trondheim, Norway, October 2007.

 

9.     E. Krogsveen, C. Wang, G. E. ien, and S. Lindfors, Energy-efficient adaptive route configuration in short-range wireless ad-hoc networks, to appear in Proc. IEEE ISWCS 2007, Trondheim, Norway, October 2007.

 

10.  L. Yin, C. Wang, and G. E. ien, Energy consumption optimization in data transmission from correlated sensor nodes, to appear in Proc. IEEE ISWCS 2007, Trondheim, Norway, October 2007.

 

11.  A. Havashki, P. G. Kjeldsberg, G. E. ien, L. Lundheim, and J. T. Nymoen, On the impact of fixed point DSP implementation on required channel estimator complexity in communication receivers, to appear in Proc. IEEE ISWCS 2007, Trondheim, Norway, October 2007.

 

12.  A. Gjendemsj, G. E. ien, and D. Gesbert, Binary power control for multi-cell capacity maximization, in Proc. IEEE SPAWC 2007, Helsinki, Finland, June 2007.

 

13.  F. Hekland, G. E. ien, and T. A. Ramstad, Quantifying performance losses in source-channel coding, in Proc. 13th European Wireless Conference (EW-2007), Paris, France, April 2007.

 

14.  S. G. Kiani, G. E. ien, and D. Gesbert, Maximizing multi-cell capacity using distributed power allocation and scheduling, in Proc. IEEE WCNC 2007, Hong Kong, China, March 2007.

 

15.  S. de la Kethulle de Ryhove and G. E. ien, Rate-optimal power adaptation in peak and average power constrained fading channels, in Proc. IEEE WCNC 2007, Hong Kong, China, March 2007.

 

16.  A. Gjendemsj, H.-C. Yang, G. E. ien, and M.-S. Alouini, Minimum selection GSC with adaptive modulation and post-combining power control, in Proc. IEEE WCNC 2007, Hong Kong, China, March 2007.

 

17.  A. Gjendemsj, S. de la Kethulle de Ryhove, and G. E. ien, A cross-layer comparison of two design philosophies for discrete-rate adaptive transmission, Temporary Document TD(07)312, 3rd MCM, COST Action 2100 Pervasive Mobile and Ambient Wireless Communications, Duisburg, Germany, September 10 - 12, 2007.

 

18.  A. Gjendemsj, D. Gesbert, G. E. ien, and S. G. Kiani, Binary power control for multi-link capacity maximization, Temporary Document TD(07)018, 2nd MCM, COST Action 2100 Pervasive Mobile and Ambient Wireless Communications, Lisbon, Portugal, February 26 – 28, 2007.

 

19.  F. Bhagen, P. Orten, and G. E. ien, Design of capacity-optimal high-rank, line-of-sight MIMO channels, Research Report, Department of Informatics, University of Oslo, February 2007. Available from http://www.digbib.uio.no/ .

 

20.  F. Bhagen, P. Orten, and G. E. ien, Modeling and analysis of a 40 GHz MIMO system for fixed wireless access, Research Report, Department of Informatics, University of Oslo, February 2007. Available from http://www.digbib.uio.no/ .

 

2006:

 

1.     G. E. ien and T. Javornik (eds.), Rate-adaptive systems and link adaptation, Section 3.6 (pp. 90 – 107) in Chapter 3 Signal Processing of L. Correia (ed.): Mobile Broadband Multimedia Networks: Techniques, Models and Tools for 4G. Elsevier Press, ISBN 0-12-369422-1, April 28, 2006.

 

2.     V. Hassel, M.-S. Alouini, G. E. ien, and D. Gesbert, Rate-Optimal Multiuser Scheduling with Reduced Feedback Load and Analysis of Delay Effects, in EURASIP Journal on Wireless Communications and Networking – Special Issue on Radio Resource Management in 3G+ Systems, vol. 2006, Article ID 36424, 7 pages, 2006. DOI:10.1155/WCN/2006/36424.

 

3.     D. V. Duong, G. E. ien, and K. J. Hole, Adaptive Coded Modulation with Receive Antenna Diversity and Imperfect Channel Knowledge at Receiver and Transmitter, in IEEE Transactions on Vehicular Technology, vol. 55, no. 2, pp. 458 – 465, March 2006.

 

4.     V. Hassel, G. E. ien, and D. Gesbert, Throughput guarantees for wireless networks with opportunistic scheduling, in Proc. IEEE Globecom 2006, San Francisco, USA, November 2006.

 

5.     F. Bhagen, P. Orten, and G. E. ien, On spherical vs. plane wave modelling of line-of-sight MIMO channels, in Proc. IEEE Globecom 2006, San Francisco, USA, November 2006.

 

6.     B. Holter and G. E. ien, Performance analysis of a rate-adaptive dual-branch switched diversity system, in Proc. IEEE VTC Fall 2006, Montreal, Canada, September 2006.

 

7.     D. V. Duong, B. Holter, and G. E. ien, Optimization and performance analysis of SIMO systems with adaptive coded modulation in spatially correlated Rayleigh fading, in Proc. IEEE VTC Fall 2006, Montreal, Canada, September 2006.

 

8.     F. Bhagen, P. Orten, and G. E. ien, Modeling of line-of-sight 2x2 MIMO channels: Spherical versus plane waves, in Proc. IEEE PIMRC 2006, Helsinki, Finland, September 2006.

 

9.     V. Hassel, G. E. ien, and D. Gesbert, Throughput guarantees for different opportunistic scheduling algorithms: A comparative study, in Proc. International Telecommunications Symposium (ITS) 2006, Fortaleza, Brazil, September 2006.

 

10.  B. Holter and G. E. ien, Impact of spatial correlation on adaptive coded modulation performance in Rayleigh fading, in Proc. International Telecommunications Symposium (ITS) 2006, Fortaleza, Brazil, September 2006.

 

11.  S. G. Kiani, D. Gesbert, J. E. Kirkeb, A. Gjendemsj, and G. E. ien, A simple greedy scheme for multi-cell capacity maximization, in Proc. International Telecommunications Symposium (ITS-2006), Fortaleza, Brazil, September 2006.

 

12.  F. Bhagen, P. Orten, and G. E. ien, Optimal design of uniform planar antenna arrays for strong line-of-sight MIMO channels, in Proc. IEEE SPAWC 2006, Cannes, France, July 2006.

 

13.  S. de la Kethulle de Ryhove and G. E. ien, Capacity-achieving input phase distributions for noncoherent Rayleigh fading channels with memory, in Proc. IEEE SPAWC 2006, Cannes, France, July 2006.

 

14.  A. Gjendemsj, H.-C. Yang, M.-S. Alouini, and G. E. ien, Joint adaptive transmission and combining with optimized rate and power allocation, in Proc. IEEE SPAWC 2006, Cannes, France, July 2006.

 

15.  S. de la Kethulle de Ryhove and G. E. ien, Maximising the average spectral efficiency of dual-branch MIMO communication systems with discrete rate adaptation, in Proc. IEEE SPAWC 2006, Cannes, France, July 2006.

 

16.  A. Gjendemsj, G. E. ien, and P. Orten, Optimal discrete power control for adaptive coded modulation schemes with capacity-approaching component codes, in Proc. IEEE ICC 2006, Istanbul, Turkey, June 2006.

 

17.  V. Hassel, M. R. Hanssen, and G. E. ien, Spectral efficiency and fairness for opportunistic round robin scheduling, in Proc. IEEE ICC 2006, Istanbul, Turkey, June 2006.

 

18.  S. de la Kethulle de Ryhove and G. E. ien, A design methodology for link adaptation schemes using constellations of constant PAPR, in Proc. IEEE ICC 2006, Istanbul, Turkey, June 2006.

 

19.  A. Gjendemsj, D. Gesbert, G. E. ien, and S. G. Kiani, Optimal power allocation and scheduling for two-cell capacity maximization, in Proc. RAWNET 2006 (2nd WiOpt Workshop on Resource Allocation in Wireless NETworks), Boston, USA, April 2006.

 

20.  V. Hassel, H. Koubaa, and G. E. ien, Feedback protocols for increased multiuser diversity gain in cellular ALOHA-based networks – A comparative study, Technical Report, Norwegian University of Science and Technology, Trondheim, Norway, Nov. 2006.

 

2005:

 

1.     B. Holter and G. E. ien, On the Amount of Fading in MIMO Diversity Systems, IEEE Transactions on Wireless Communications, vol. 4, no. 5, pp. 2498 – 2507, Sept. 2005.

 

2.     A. Gjendemsj, G. E. ien, and H. Holm, Optimal power control for discrete-rate link adaptation schemes with capacity-approaching coding, in Proc. IEEE Globecom 2005, St. Louis, Missouri, USA, November 2005.

 

3.     D. V. Duong, G. E. ien, and K. J. Hole, Adaptive trellis-coded modulation with receive antenna diversity and imperfect channel knowledge at both receiver and transmitter, in Proc. EUSIPCO-2005, Antalya, Turkey, September 2005.

 

4.     V. Hassel, M.-S. Alouini, G. E. ien, and D. Gesbert, Rate-optimal multiuser scheduling with reduced feedback load and analysis of delay effects, in Proc. EUSIPCO-2005, Antalya, Turkey, September 2005.

 

5.     H. Koubaa, V. Hassel, and G. E. ien, Contention-less feedback for multi-user diversity scheduling, in Proc. IEEE VTC Fall 2005, Dallas, Texas, USA, September 2005.

 

6.     D. V. Duong, B. Holter, and G. E. ien, Optimal pilot spacing and power in rate-adaptive MIMO diversity systems with imperfect transmitter CSI, in Proc. IEEE SPAWC-2005, New York, USA, June 2005.

 

7.     F. Bhagen, P. Orten, and G. E. ien, On the Shannon capacity of dual MIMO systems in Ricean fading, in Proc. IEEE SPAWC-2005, New York City, USA, June 2005.

 

8.     H. Koubaa, V. Hassel, and G. E. ien, Multiuser diversity gain enhancement by guard time reduction, in Proc. IEEE SPAWC-2005, New York City, USA, June 2005.

 

9.     V. Hassel, M.-S. Alouini, D. Gesbert, and G. E. ien, Exploiting multiuser diversity using multiple feedback thresholds, in Proc. IEEE VTC Spring 2005, May/June 2005.

 

10.  F. Bhagen, P. Orten, and G. E. ien, Modeling and analysis of a 40 GHz MIMO system for fixed wireless access, in Proc. IEEE VTC Spring 2005, Stockholm, Sweden, May/June 2005.

 

11.  S. de la Kethulle de Ryhove, G. E. ien, and F. Bhagen, Subchannel SNR distributions in dual-branch MIMO systems, in Proc. IEEE/ITG International Workshop on Smart Antennas, Duisburg, Germany, April 2005.

 

12.  F. Hekland, G. E. ien, and T. A. Ramstad, Using 2:1 Shannon mapping for joint source-channel coding, in Proc. Data Compression Conference 2005, Snowbird, Utah, USA, March 2005.

 

13.  F. Bhagen, P. Orten, and G. E. ien, Construction and capacity analysis of high-rank line-of-sight MIMO channels, in Proc. IEEE WCNC-2005, New Orleans, LA, USA, March 2005.

 

14.  D. V. Duong, M. . Wingar, and G. E. ien, Link adaptation in correlated antenna diversity environments, in Proc. Norwegian Signal Processing Symposium (NORSIG) 2005, Stavanger, Norway, September 2005.

 

15.  S. de la Kethulle de Ryhove and G. E. ien. Energy-optimised coded modulation for short-range wireless communications on Nakagami-m fading channels, in Proc. Norwegian Signal Processing Symposium (NORSIG) 2005, Stavanger, Norway, September 2005.

 

16.  H. Koubaa, V. Hassel, and G. E. ien, Multiuser diversity gain enhancement by guard time reduction, Temporary Document no. TD(05)-038, 12th Management Committee Meeting, COST Action 273 Towards Mobile Multimedia Broadband Networks, Bologna, Italy, January 20 – 21, 2005.

 

17.  D. V. Duong, G. E. ien, and K. J. Hole, Adaptive trellis-coded modulation with receive antenna diversity and imperfect channel knowledge at both receiver and transmitter, Temporary Document TD(05)-009, 12th Management Committee Meeting, COST Action 273 Towards Mobile Multimedia Broadband Networks, Bologna, Italy, January 20 – 21, 2005.

 

2004:

 

1.     G. E. ien, Radio interface and access technologies for mobile and wireless systems beyond 3G, invited paper in Telektronikk vol. 100, no. 3, pp. 55 – 68, November 2004.

 

2.     G. E. ien, H. Holm, and K. J. Hole, Impact of Channel Prediction on Adaptive Coded Modulation Performance in Rayleigh Fading, in IEEE Transactions on Vehicular Technology, vol. 53, no.3, pp. 758 – 769, May 2004.

 

3.     B. Holter, M.-S. Alouini, G. E. ien, and H.-C. Yang, Multiuser switched diversity transmission, in Proc. IEEE VTC Fall 2004, Los Angeles, CA, USA, September 2004.

 

4.     O. Jetlund, G. E. ien, H. Holm, and K. J. Hole, Spectral efficiency bounds for adaptive coded modulation with outage probability constraints and imperfect channel prediction, in Proc. Nordic Radio Symposium 2004, Oulu, Finland, August 2004.

 

5.     D. V. Duong and G. E. ien, Adaptive coded modulation with imperfect channel state information at the receiver and transmitter, in Proc. Nordic Radio Symposium 2004, Oulu, Finland, August 2004.

 

6.     G. E. ien, N. Holte, S. Andresen, T. Svendsen, and M. Hammer, Communication technology towards 2020. Position paper, The Faculty of Information Technology, Mathematics, and Electrical Engineering, NTNU, Spring 2004. In Proc. INFOSAM-2020 conference, NTNU, April 19th – 20th, 2004. 6 pages.

 

7.     O. Jetlund, G. E. ien, and H. Holm, Switching thresholds for robust adaptive coded modulation with predicted channel state information: A step towards an analytical solution, Temporary Document no. TD(04)-34, 9th MCM Meeting, COST Action 273 Towards Mobile Multimedia Broadband Networks, Athens, Greece, January 26 - 28, 2004. 12 pages.

 

8.     G. E. ien, Flexible and Heterogeneous: Radio Access Beyond 3G, invited talk, Telektronikk 100th Anniversary Seminar, Fornebu, Norway, November 2004.

 

2003:

 

 

1.     F. Bhagen, G. E. ien, M.-S. Alouini, and K. J. Hole, Bounds on average area spectral efficiency for adaptive coded modulation in cellular networks, in Proc. 6th Baiona Workshop on Signal Processing in Communications, Baiona, Spain, September 8-10, 2003.

 

2.     M. Kang, M.-S. Alouini, and G. E. ien, How accurate are the Gaussian and Gamma approximations to the outage capacity of MIMO channels?, in Proc. 6th Baiona Workshop on Signal Processing in Communications, Baiona, Spain, September 8-10, 2003.

 

3.     H. Holm, G. E. ien, M.-S. Alouini, D. Gesbert, and K. J. Hole, Optimal design of adaptive coded modulation schemes for maximum average spectral efficiency, in Proc. IEEE Workshop on Signal Processing Advances in Wireless Communications 2003 (SPAWC-2003), Rome, Italy, June 15-18, 2003.

 

4.     L. Yang, M.-S. Alouini, and G. E. ien, Performance of buffered adaptive transmission, in Proc. COST 273 Workshop on Broadband Wireless Local Access, pp. 15/1 – 15/6, Paris, France, May 21-22, 2003.

 

5.     B. Holter, G. E. ien, K. J. Hole, and H. Holm, Limitations in spectral efficiency of a rate-adaptive MIMO system utilizing pilot-aided channel prediction, in Proc. IEEE Vehicular Technology Conference Spring 2003 (VTC Spring 2003), Jeju Island, Korea, April 2003.

 

6.     O. Jetlund, G. E. ien, K. J. Hole, and B. Holter, Adaptive Gallager coded modulation scheme on Rayleigh fading channels: Comparison of simulated and theoretical performance, in Proc. Norwegian Signal Processing Symposium 2003 (NORSIG-03), Bergen, Norway, October 2003.

 

 

7.     O. Jetlund, G. E. ien, B. Holter, and K. J. Hole, Optimal Channel Prediction in an Adaptive Gallager Coded Modulation Scheme on Rayleigh Fading Channels, Temporary Document no. TD(03)-127, 7th MCM Meeting, COST Action 273 Towards Mobile Multimedia Broadband Networks, Paris, France, May 21 - 23, 2003. 18 pages.

 

8.     O. Jetlund, G. E. ien, and K. J. Hole, Adaptive Gallager coded modulation on Rayleigh fading channels: Comparison of simulated and theoretical performance, Temporary Document no. TD(03)-040, 6th MCM Meeting, COST Action 273 Towards Mobile Multimedia Broadband Networks, Barcelona, Spain, January 15 - 17, 2003. 12 pages.

 

2002:

 

1.     G. E. ien, Information theory: The foundation of modern telecommunications, in Telektronikk vol. 98, no. 1, pp. 3 – 19, July 2002.

 

2.     K. J. Hole, H. Holm, and G. E. ien, Performance analysis of adaptive coded modulation with antenna diversity and feedback delay, in Telektronikk vol. 98, no. 1, pp. 106 – 113, July 2002.

 

3.     K. J. Hole, G. E. ien, and H. Holm, Adaptive coded modulation for wireless OFDM channels: Upper bounds on average spectral efficiency and influence of imperfect channel knowledge, in Proc. IEE Conference on Getting the Most out of the radio Spectrum, London, UK, October 4-7, 2002.

 

4.     G. E. ien, R. K. Hansen, D. V. Duong, H. Holm, and K. J. Hole, Bit error rate analysis of adaptive coded modulation with mismatched and complexity-limited channel prediction, in Proc.  5th IEEE Nordic Signal Processing Symposium, Hurtigruten, Norway, October 2002.

 

5.     B. Holter and G. E. ien, The optimal weights of a maximum ratio combiner using an eigenfilter approach, in Proc.  5th IEEE Nordic Signal Processing Symposium, Hurtigruten, Norway, October 2002.

 

6.     G. E. ien, H. Holm, and K. J. Hole, Adaptive coded modulation with imperfect channel state information: System design and performance analysis aspects, invited paper (extended 2-page abstract) in Proc. IEEE International Symposium on Advances in Wireless Communications, Victoria, Canada, September 2002.

 

7.     G. E. ien, H. Holm and K. J. Hole, Channel prediction for adaptive coded modulation in Rayleigh fading, in Proc. EURASIP European Signal Processing Conference (EUSIPCO-2002), Toulouse, France, September 2002.

 

8.     B. Myhre, V. Markhus and G. E. ien, LPDC-coded adaptive modulation on slowly varying Nakagami-fading channels, in Proc. European Wireless 2002, pp. 822 - 828, Florence, Italy, February, 2002.

 

9.     G. E. ien, K. J. Hole, N. Holte, T. A. Ramstad, and B. Holter, Bandwidth-efficient and adaptive transmission schemes for wireless multimedia communications, invited paper in Proc. 2nd International Workshop on Research Directions in Mobile Communications and Services, Grimstad, Norway, September 2002.

 

10.  O. Jetlund, G. E. ien, K. J. Hole, V. Markhus, and B. Myhre, Rate-adaptive coding and modulation with LDPC component codes, Temporary Document no. TD(02)-108, 5th MCM Meeting, COST Action 273 Towards Mobile Multimedia Broadband Networks, Lisbon, Portugal, September, 2002. 15 pages.

 

11.  G. E. ien, H. Holm, and K. J. Hole, Adaptive coded modulation enhanced by channel prediction and antenna diversity, Temporary Document no. TD(02)-054, 4th MCM Meeting, COST Action 273 Towards Mobile Multimedia Broadband Networks, Espoo, Finland, May, 2002. 17 pages.

 

12.  G. E. ien, Informasjonsteori, koding og kompresjon. Lecture notes for siv.ing. course SIE2035 Information theory, coding, and compression, TAPIR Kompendieforlaget. 3rd ed., August 2002. 192 pages (partly in Norwegian).

 

13.  G. E. ien, Bandwidth-efficient and adaptive transmission schemes for wireless multimedia communications. Invited lecture, Chalmers Institute of Technology, Gteborg, Sweden, October 2002.

 

14.  G. E. ien, Bandwidth-efficient and adaptive transmission schemes for wireless multimedia communications. Invited lecture, 2nd International Workshop on Research Directions in Mobile Communications and Services, Grimstad, Norway, September 2002.

 

15.  G. E. ien, Impact of channel prediction on adaptive coded modulation performance in Rayleigh fading with receive diversity. Invited lecture, Department of Informatics, Univ. of Oslo, Norway, January 2002.

 

2001:

 

1.     K. J. Hole and G. E. ien, Spectral Efficiency of Adaptive Coded Modulation in Urban Microcellular Networks, IEEE Transactions on Vehicular Technology, vol. 50, no. 1, pp. 205-222, Jan. 2001.

 

2.     K. J. Hole and G. E. ien, Adaptive channel coding and modulation: A key to bandwidth-efficient multimedia communications in future wireless systems. Invited paper, Telektronikk (special issue on Wireless Future) vol. 97, no. 1, pp. 49 – 57, May 2001.

 

3.     K. J. Hole, H. Holm, and G. E. ien, Analysis of adaptive coded modulation with antenna diversity and feedback delay, in Proc. IST Mobile Communications Summit 2001, pp. 865-870, Sitges, Spain, September 2001.

 

4.     K. J. Hole, G. E. ien, B. Rislw, and P. Orten, Rate-adaptive modulation and coding in fixed Ka-band satellite communications: A feasibility study, in Proc. Nordic Radio Symposium 2001 (NRS-01), Nynshamn, Sweden, April 2001.

 

5.     G. E. ien and K. J. Hole, Maximum average spectral efficiency for slowly varying Rayleigh fading channels with pilot-symbol-assisted channel estimation, in Proc. 4th European Personal Mobile Communications Conference (EPMCC-2001), Wien, Austria, February 2001. CD-ROM proceedings only.

 

6.     B. Myhre, V. Markhus, and G. E. ien, LDPC coded adaptive multilevel modulation for slowly varying Rayleigh-fading channels, in Proc. Norwegian Signal Processing Symposium 2001 (NORSIG-01), Trondheim, Norway, October 2001.

 

7.     G. E. ien and T. A. Ramstad, On the role of Wiener filtering in quantization and DPCM, in Proc. Norwegian Signal Processing Symposium 2001 (NORSIG-01), Trondheim, Norway, October 2001.

 

8.     G. E. ien, Channel capacity of wireless channels. Invited lecture, Claude E. Shannon in Memoriam Seminar, Telenor R&D, Kjeller, Norway, August 2001.

 

2000:

 

1.     K. J. Hole, H. Holm, and G. E. ien, Adaptive Multidimensional Coded Modulation for Flat Fading Channels, IEEE Journal on Selected Areas in Communications, vol. 18, no. 7, pp. 1153-1158, July 2000.

 

2.     G. E. ien and N. Holte, Digital kommunikasjon. Lecture notes for external course Digital Communications, Dept. of Telecommunications, NTNU, August 2000 (partly in Norwegian).

 

3.     G. E. ien, On the robustness of rate-adaptive transmission with respect to channel dynamics and imperfect channel estimation on flat fading channels. Invited lecture, WIRAC Industry Seminar, Finse, Norway, April 2000.

 

4.     G. E. ien, Information theoretic limits and adaptive coded modulation for flat fading channels. Invited lecture, Dept. of Physics, University of Troms, Troms, Norway, March 2000.

 

1999:

 

1.     H. Holm, K. J. Hole, and G. E. ien, Spectral efficiency of variable-rate coded QAM for flat fading channels, in Proc. NORSIG-99, Asker, Norway, pp. 130 – 135, September 1999.

 

2.     J. Noll, P.-H. Lehne, G. E. ien, A. Perkis, K. Grythe, L. Lundheim, and N. Stol, Research and development of a UMTS demonstrator in Norway, BT Alliance Engineering Symposium 1999, Oslo, June 1999.

 

3.     G. E. ien, Introduction to channel coding. Additional lecture notes for siv. ing. course 42521 Information and Coding Theory, Dept. of Telecommunications, NTNU, Fall 1999.

 

4.     G. E. ien and T.A. Myrvoll, Informasjonsteori og feilkorrigerende koding, Del 1: Informasjonsteori. Lecture notes for siv.ing. course 42521 Information and Coding Theory, Department of Telecommunications, NTNU. 2nd ed., August 1999. 119 pages (in Norwegian).

 

5.     G. E. ien, Source and channel coding, chapter 4 in lecture notes for annual ATHENS-organized intensive course on Digital Signal Processing in Telecommunications Systems (ed. Tor A. Ramstad, various authors), Dept. of Telecommunications, NTNU, 1999. 51 pages.

 

6.     G. E. ien, Channel coding and modulation in UMTS. Invited lecture, Telekom-dagene, Oslo, Norway, December 1999.

 

1998:

 

1.     G. E. ien and S. Lepsy, On the benefits of basis orthogonalization in fractal compression, in Y. Fisher (ed.): Fractal Image Encoding and Analysis, pp. 65 - 88. Springer Verlag, ISBN 3-540-63196-8, March 1998.

 

2.     G. E. ien and G. Nrstad, Fractal compression of ECG signals, in Y. Fisher (ed.): Fractal Image Encoding and Analysis, pp. 201 - 226. Springer Verlag, ISBN 3-540-63196-8, March 1998.

 

3.     S. Lepsy, P. Carlini, and G. E. ien, On fractal compression and vector quantization, in Y. Fisher (ed.): Fractal Image Encoding and Analysis, pp. 21 - 48. Springer Verlag, ISBN 3-540-63196-8, March 1998.

 

4.     I. Balasingham, T. Ramstad, M. Adams, F. Kossentini, H. Coward, A. Perkis and G. E. ien, Performance evaluation of different filter banks in the JPEG-2000 baseline system, in Proc. ICIP-98 (IEEE International Conference of Image Processing),  Chicago, USA, October 1998.

 

5.     A. Perkis, H. Coward, T. Ramstad, G. E. ien, and I. Balasingham, JPEG2000 in mobile and wireless communications, in Proc. 3rd ACTS Mobile Summit, Rhodos, Greece, June 1998.

 

6.     H. Coward, A. Perkis, T. Ramstad, G. E. ien, and I. Balasingham, Robustness against channel errors in JPEG2000, in Proc. 3rd IEEE Nordic Signal Processing Symposium (NORSIG-98), Lyngby, Denmark, June 1998.

 

7.     A. Perkis, G. E. ien, T. A. Ramstad, and T. Halbach, Fixed Length Coding by Nonuniform Scalar Quantization in JPEG2000, ISO/IEC JTC 1/SC 29/WG 1 Document no. N 851. July 1998.

 

8.     A. Perkis, G. E. ien, and T. A. Ramstad, Impact of Fixed Length Coding (FLC) versus Variable Length Coding (VLC) in JPEG2000, ISO/IEC JTC 1/SC 29/WG 1 Document no. N 738. March 1998.

 

9.     H. Coward, T. A. Ramstad, G. E. ien, and A. Perkis, Multilevel Signaling, ISO/IEC JTC 1/SC 29/WG 1 Document no. N 739. March 1998.

 

10.  I. Balasingham, T. A. Ramstad, A. Perkis, and G. E. ien, Performance of Different Filter Banks and Wavelet Transforms, ISO/IEC JTC 1/SC 29/WG 1 Document no. N 740. March 1998.

 

1997:

 

1.     G. E. ien, Information theory: The foundation of modern communications, in Proc. NORSIG-97, Troms, Norway, May 1997.

 

2.     G. E. ien, Is advanced information theory useful? Invited lecture, Stavanger College, Stavanger, Norway, 1997.

 

3.     G. E. ien, Recurrent neural nets. Invited lecture, Stavanger College, Stavanger, Norway, 1997.

 

1996:

 

1.     G. E. ien, H. Krkeland, and G. Nrstad, Fast fractal-based ECG signal compression, in Proc. IEEE International Conference on Engineering in Medicine and Biology, Amsterdam, Holland, October 1996.

 

2.     G. E. ien, R. Hamzaoui, and D. Saupe, On the limitations of fractal image texture coding, Proc. 2nd IEEE Nordic Signal Processing Symposium (NORSIG-96), Espoo, Finland, September 1996.

 

3.     G. E. ien, N. A. Bertelsen, T. Eftestl, and J. H. Husy, ECG rhythm classification using artificial neural networks, in Proc. IEEE DSP Workshop, Loen, Norway, September 1996.

 

4.     G. E. ien and A. Lvendahl, Vector quantization of ECG signals, in Proc. International Symposium on Digital Signal Processing, London, UK, July 1996.

 

5.     . Eriksen, H. Heimvoll, P. A. Linnerud, and G. E. ien, Digital signal processing: Processors and tools, EKF-rapport EKF R-98, techn. rep., Elektronikkindustriens Konstruksjonsforum (EKF), 1996. 216 pages (in Norwegian).

 

 

1995:

 

1.     G. E. ien and S. Lepsy, A class of fractal image coders with fast decoder convergence. in Y. Fisher (ed.): Fractal Image Compression: Theory and Applications (Springer Verlag), pp. 157 - 179, January 1995.

 

2.     S. Lepsy and G. E. ien, Fast attractor image encoding by adaptive codebook clustering. in Y. Fisher (ed.): Fractal Image Compression: Theory and Applications (Springer Verlag), pp. 181 - 201, January 1995.

 

3.     G. E. ien and P. Osnes, Diabetic retinopathy: Automatic detection of early symptoms from digital retinal images, in Proc. NORSIG-95, Stavanger, Norway, September 1995.

 

4.     G. E. ien, Digital signal processing – A survey of processors and tools. Invited lecture, DAK-Forum, Trondheim, Norway, 1995.

 

1994:

 

1.     G. E. ien and S. Lepsy, Fractal-Based Image Coding with Fast Decoder Convergence, Signal Processing, vol. 40, pp. 105-117, 1994.

 

2.     G. E. ien, Parameter quantization in fractal image coding, in Proc. IEEE ICIP-94 (1st IEEE International Conference on Image Processing), USA, November 1994.

 

3.     G. E. ien and S. Lepsy, Analysis of a complexity reduction algorithm in fractal image coding, in Proc. ICSPAT-94 (5th International Conference on Signal Processing Applications and Technology), pp. 910-915, Dallas, USA, October 1994.

 

4.     G. E. ien, Z. Baharav, S. Lepsy, E. Karnin, and D. Malah, A new improved collage theorem with applications to multiresolution fractal image coding, in Proc.  IEEE ICASSP-94 (IEEE International Conference on Acoustics, Speech and Signal Processing), vol. 5, pp. 565-568, May 1994.

 

5.     G. E. ien, Parameter quantization in fractal image coding, in Proc. 1st IEEE Nordic Signal Processing Symposium (NORSIG-94), pp. 252-257, lesund, Norway, June 1994.

 

1993:

 

1.     G. E. ien and S. Lepsy, Improving the decoder in a fractal image compression method, in Proc. COST No. 229 WG.1+2 2nd Vigo Workshop on Adaptive Methods and Emergent Techniques for Signal Processing and Communications, pp. 326 – 334, Bayona, Spain, June 1993.

 

2.     S. Lepsy, G. E. ien, and T. A. Ramstad, Attractor image compression with a fast noniterative decoding algorithm, in Proc. IEEE ICASSP-93, pp. V-337 - V-340, Minneapolis, USA, April 1993.

 

3.     P. Waldemar, G. E. ien, and T. A. Ramstad, Fast image coding by nonlinear contractive transformations, in Proc. IEEE Winter Workshop on Nonlinear Digital Signal Processing, p. 13.1, Tampere, Finland, January 1993.

 

4.     G. E. ien, S. Lepsy, and T. A. Ramstad, Fractal-based image compression: Status report 1993, in Proc. NORSIG-93, Lillehammer, Norway, February 1993 (in Norwegian).

 

5.     G. E. ien, L2-Optimal Attractor Image Coding with Fast Decoder Convergence. Dr. ing. thesis, NTH, April 1993.

 

6.     G. E. ien, Motion-compensated hybrid video coding. Invited lecture, Rogaland Hgskolesenter, Stavanger, Norway, 1993.

 

1992:

 

1.     G. E. ien, S. Lepsy, and T. A. Ramstad, Reducing the complexity of a fractal-based image coder, in Proc. EUSIPCO-92 (The European Signal Processing Conference), pp. 1353-1356, Brussels, Belgium, August 1992.

 

2.     S. Lepsy og G. E. ien, Attractor image compression featuring direct attractor optimization and noniterative decoding, in Proc. Norwegian Conference on Industrial Mathematics (INDUMAT-92), Trondheim, Norway, August 1992.

 

3.     G. E. ien, A. Sollid, and T. A. Ramstad, Hybrid image compression combining attractor coding and transform coding, in Proc. Norwegian Image Compression Conference (NOBIM-92), pp. 286-293, Trondheim, Norway, 1992.

 

4.     G. E. ien, Fractal image compression. Invited lecture, Linkping University, Linkping, Sweden, 1992.

 

1991:

 

1.     G. E. ien, S. Lepsy, and T. A. Ramstad, An inner product space approach to image coding by contractive transformations, in Proc. IEEE ICASSP-91, pp. 2773-2776, Toronto, Canada, May 1991.

 

1989:

 

1.     G. E. ien, Automatic voice recognition: Theoretical foundations and signal processor implementation of a vector quantization based algorithm. MScEE thesis, NTH, April 1989 (in Norwegian).