Title :
Adaptive power control scheme for energy efficient cognitive radio networks
Author :
Pirmoradian, Mahdi ; Adigun, Olayinka ; Politis, Christos
Author_Institution :
Wireless Multimedia & Networking (WMN) Res. Group, Kingston Univ., London, UK
Abstract :
Cognition in radio communication is a valuable means of improving spectrum utilization and can contribute to reducing energy consumption in wireless communication systems. This paper proposes a power control scheme using spectrum hole lifetime to diminish cognitive radio energy consumption. The secondary users´ transmission power level will be adapted in different licensed channels subject to the channel characteristics, interference power constraint and idle channel lifetime. The power control scheme is evaluated in a multi-licensed channels environment. The simulation results confirm that the proposed scheme considerably improves the efficient use of energy at the cognitive user during the secondary use of licensed channel.
Keywords :
adaptive control; cognitive radio; energy consumption; power control; telecommunication control; adaptive power control scheme; cognitive radio energy consumption; cognitive user; energy efficient cognitive radio networks; idle channel lifetime; interference power constraint; multi-licensed channels environment; radio communication; secondary users´ transmission power level; spectrum hole lifetime; spectrum utilization; wireless communication systems; Channel capacity; Cognitive radio; Energy consumption; Green products; Interference; Power control; Cognitive Radio; Energy Consumption; Power Control;
Conference_Titel :
Communications (ICC), 2012 IEEE International Conference on
Conference_Location :
Ottawa, ON
Print_ISBN :
978-1-4577-2052-9
Electronic_ISBN :
1550-3607
DOI :
10.1109/ICC.2012.6364836