Journal of Beijing University of Posts and Telecommunications

  • EI核心期刊

JOURNAL OF BEIJING UNIVERSITY OF POSTS AND TELECOM ›› 2012, Vol. 35 ›› Issue (5): 54-58.doi: 10.13190/jbupt.201205.54.qiut

• Papers • Previous Articles     Next Articles

Schemes of Joint Design of Energy-Efficient Spectrum Sensing and Transmission

QIU Tao, SONG Tao, XU Wen-jun, TIAN Bao-yu   

  1. School of Information and Communication Engineering, Beijing University of Posts and Telecommunications
  • Received:2011-12-16 Revised:2012-03-23 Online:2012-10-28 Published:2012-07-06
  • Contact: Tao Qiu E-mail:tqiu@bupt.edu.cn

Abstract:

In order to realize energy-efficient transmission in cognitive radio networks, a method of the joint optimization scheme of spectrum sensing and transmission power allocation under hybrid spectrum sharing is investigated. Firstly, the energy-efficient transmission under hybrid spectrum sharing is formulated as an optimization problem with multiple constraints. The optimal spectrum sensing and power allocation schemes are analyzed. And a low-complexity joint optimization iterative algorithm is proposed to approximate the optimal solution as well. Simulation indicates that the performance of the proposed algorithm is very closed to the optimal algorithm, but with the greatly decreased complexity.

Key words: hybrid spectrum sharing, energy-efficiency, spectrum sensing, joint optimization

CLC Number: