Future Communication, Information and Computer Science – Zheng (Ed.)
© 2015 Taylor & Francis Group, London, 978-1-138-02653-7
An improved power control algorithm in cognitive radio
B. Wang, C. Zhang & S. Li
Harbin Institute of Technology, Harbin, Heilongjiang, China
ABSTRACT: This paper studies the power control algorithm based on game theory in cognitive radio, proposes
a better cost function for power control process. An optimized function related to SINR (signal to interference
ratio) is also designed to simplify the algorithm, which balanced the punishment of far users and total communi-
cation quality.The comparisonof simulation shows that the improved algorithm not only reduces the transit power
and increases the total utility, but also gives ...