Research Article
Energy Efficient Inverse Power Control for a Cognitive Radio Link
@INPROCEEDINGS{10.1109/CROWNCOM.2007.4549808, author={Marko H\o{}yhty\aa{} and Anant Sahai and Danijela Cabric and Aarne M\aa{}mmel\aa{}}, title={Energy Efficient Inverse Power Control for a Cognitive Radio Link}, proceedings={2nd International ICST Conference on Cognitive Radio Oriented Wireless Networks and Communications}, publisher={IEEE}, proceedings_a={CROWNCOM}, year={2008}, month={6}, keywords={FxLMS algorithm; truncated power control; interference control;}, doi={10.1109/CROWNCOM.2007.4549808} }- Marko Höyhtyä
Anant Sahai
Danijela Cabric
Aarne Mämmelä
Year: 2008
Energy Efficient Inverse Power Control for a Cognitive Radio Link
CROWNCOM
IEEE
DOI: 10.1109/CROWNCOM.2007.4549808
Abstract
In this paper, a novel adaptive energy and spectrum efficient inverse power control method that is based on the truncated filteredx LMS (FxLMS) algorithm is introduced. By truncated power control we mean power control where transmission is interrupted if the channel state deteriorates to bad enough. Inverse power control minimizes the interference that a cognitive radio (CR) creates to licensed users and allows more users to share the spectrum. To further reduce the transmission power and consequently the interference, truncation in power control is used. The performance of the system is improved and the amount of needed transmitted energy is smaller. Based on numerical analysis this new method offers energy efficient transmission, helps to minimize interference to the primary users, and allows even more users to share the same spectrum.
