Title :
Energy-Efficient Transmission for Protection of Incumbent Users
Author :
Li, Liying ; Zhou, Xiangwei ; Xu, Hongbing ; Li, Geoffrey Ye ; Wang, Dandan ; Soong, Anthony C K
Author_Institution :
Sch. of CAE, Univ. of Electron. Sci. & Technol. of China, Chengdu, China
Abstract :
Cognitive radio (CR) technology can be used to provide flexible mobile multimedia communications. In this article, we investigate energy-efficient design of CR to protect incumbent users, such as broadcasters and telecommunications operators. Power allocation and transmission duration are determined for a CR user exploiting multiple channels. Both energy efficiency of the CR user and interference with the incumbent users are considered. Simulation results demonstrate that the proposed approaches achieve reliable protection and significant performance gain in terms of energy efficiency.
Keywords :
channel allocation; cognitive radio; data communication; energy conservation; mobile communication; multimedia communication; radio spectrum management; cognitive radio; energy efficient transmission; incumbent users protection; mobile multimedia communications; multiple channels; power allocation; transmission duration; Cognitive radio; Data communication; Interference; Mobile communication; Multimedia communication; Resource management; Sensors; Cognitive radio; energy efficiency; power allocation; transmission duration;
Journal_Title :
Broadcasting, IEEE Transactions on
DOI :
10.1109/TBC.2011.2128230
