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

Volume

57

Issue

3

fYear

2011

Firstpage

718

Lastpage

720

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;

fLanguage

English

Journal_Title

Broadcasting, IEEE Transactions on

Publisher

ieee

ISSN

0018-9316

Type

jour

DOI

10.1109/TBC.2011.2128230

Filename

5752241