Title :
An Improved Game-theoretic Spectrum Sharing in Cognitive Radio Systems
Author :
Ma Liang ; Zhu Qi
Author_Institution :
Key Lab. of Broadband Wireless Commun. & Sensor Network Technol., Nanjing Univ. of Posts & Telecommun., Nanjing, China
Abstract :
In this paper, an improved game-theoretic spectrum sharing algorithm is proposed. Besides considering the available bandwidth, a reliance factor that represents how the primary users would like to lease the free spectrum to secondary users is introduced and the battery capacity of secondary users is taken into account. The simulation results show that the shared spectrum is in direct proportion to the reliance and battery capacity. The existence and uniqueness of Nash equilibrium are proved.
Keywords :
cognitive radio; game theory; battery capacity; cognitive radio systems; game-theoretic spectrum sharing; Bandwidth; Batteries; Cognitive radio; Games; Nash equilibrium; Resource management; battery capacity; cognitive radio; game theory; reliance; spectrum sharing;
Conference_Titel :
Communications and Mobile Computing (CMC), 2011 Third International Conference on
Conference_Location :
Qingdao
Print_ISBN :
978-1-61284-312-4
DOI :
10.1109/CMC.2011.27
