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

fYear

2010

Firstpage

1

Lastpage

5

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;

fLanguage

English

Publisher

ieee

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

Type

conf

DOI

10.1109/CCNC.2010.5421658

Filename

5421658