Title :
Energy-Efficient Transmission in Cognitive Radio Networks
Author :
Li, Liying ; Zhou, Xiangwei ; Xu, Hongbing ; Li, Geoffrey Ye ; Wang, Dandan ; Soong, Anthony
Author_Institution :
Sch. of CAE, Univ. of Electron. Sci. & Technol. of China, Chengdu, China
Abstract :
Cognitive radio (CR) networks are designed to utilize the licensed spectrum when it is not used by the primary (licensed) users. In this paper, we investigate how a CR user senses multiple channels and determine the optimal transmission duration and power allocation. When performing optimization, we take energy efficiency, throughput, and interference with the primary users into consideration and find a closed-form solution for transmission duration for chosen channels. It is shown that the proposed optimization approach significantly improves energy efficiency and throughput of CR networks.
Keywords :
cognitive radio; radio spectrum management; cognitive radio networks; energy efficiency; optimal transmission duration; power allocation; Chromium; Closed-form solution; Cognitive radio; Communications Society; Computer aided engineering; Energy efficiency; Interference; Paper technology; Throughput; USA Councils;
Conference_Titel :
Consumer Communications and Networking Conference (CCNC), 2010 7th IEEE
Conference_Location :
Las Vegas, NV
Print_ISBN :
978-1-4244-5175-3
Electronic_ISBN :
978-1-4244-5176-0
DOI :
10.1109/CCNC.2010.5421658
