Research Article
Traditional Distributed Power Control Algorithms for Cognitive Radio Network
@INPROCEEDINGS{10.1109/ChinaCom.2011.6158235, author={Mohamed Elalem and Lian Zhao}, title={Traditional Distributed Power Control Algorithms for Cognitive Radio Network}, proceedings={6th International ICST Conference on Communications and Networking in China}, publisher={IEEE}, proceedings_a={CHINACOM}, year={2012}, month={3}, keywords={cognitive radio edcpc egdcpc}, doi={10.1109/ChinaCom.2011.6158235} }- Mohamed Elalem
Lian Zhao
Year: 2012
Traditional Distributed Power Control Algorithms for Cognitive Radio Network
CHINACOM
IEEE
DOI: 10.1109/ChinaCom.2011.6158235
Abstract
In order to utilize the spectrum efficiently, the FCC announced Cognitive Radio (CR) technology as a candidate to implement negotiated or opportunistic spectrum sharing. It has received a great attention due to the ability to improve the spectrum utilization. In such a CR network, power control can increase the efficiency by adjusting the transmission power of the secondary users (SU). In this paper, we propose an adaptive distributed power control scheme for CR networks where the con- ventional power control schemes used in cellular system are modified to be used in cognitive radio network to consider the QoS requirements of both the Primary User (PU) and the SU simultane- ously. Since the transmission power of each SU is constrained so that the interference temperature at the primary receiver caused by all SUs does not exceed the interference tolerance of the PU. As a result, the QoS requirement for the PU is always guaranteed.
