Wireless networks

Wireless networks use the scarce radio spectrum for communication. Wireless networks can serve as access networks to the Internet, or they can form networks on their own. The radio channel has time varying capacity. The capacity is a function of the environment, the distance between two nodes, and the position of all other nodes that can cause interference with the transmission. The terminals are likely to move, and all factors will therefore change over time. Furthermore, several terminals may have access to the same media, and privacy is of great concern. It is therefore a challenge to design wireless networks that enable QoS.

One type of wireless networks is ad hoc networks where a terminal usually acts as router in addition to source and receiver. New terminals may enter and leave the network at will. They communicate with other terminals within hearing distance, and with others by relaying messages through neighbours and so forth. They can connect to the fixed network if they are within the range of a base station. Ad hoc networks should offer the same set of services as the ordinary Internet.

Relations to external projects and activities:
EuroNGI, WP.JRA. 2.4 and COST 290. Collaboration with Professor Pĺl Spilling, and PhD students Eli Winjum and Mariann Hauge, Department of Informatics, UiO and UNIK.

Project coordinator: Řivind Kure
Professors: Řivind Kure, Peder J. Emstad
PhD student: Tor Kjetil Moseng