Title :
A novel energy efficient cooperative spectrum sensing scheme for cognitive radio sensor network based on evolutionary game
Author :
Xiaolong Ma ; Fanzi Zeng ; Jisheng Xu
Author_Institution :
Key Lab. for Embedded & Network Comput. of Hunan Province, Hunan Univ., Changsha, China
Abstract :
In this paper, we focused on how to get CRs collaborate effectively as well as maximize energy savings in cognitive radio sensor network. We have established a model of evolutionary game between a cognitive sensors. In order to let cognitive sensors sense spectrum effectively, we designed a contribution-punishment mechanism, which can stimulate high SNR sensors to participate in spectrum sensing. Additionally, in order to reduce the wasted energy of sensors in idle, we introduced periodic sleep-listen mechanism. Finally, we simulated behavior dynamics for a 6-player polymorphic population game and compared our proposed scheme with non-periodic sleep-listen mechanism scheme. Result shows that our proposed scheme can stimulate high SNR sensors to participate in spectrum sensing effectively and can make the system more energy efficient.
Keywords :
cognitive radio; cooperative communication; game theory; signal detection; 6-player polymorphic population game; cognitive radio sensor network; contribution-punishment mechanism; evolutionary game; high SNR sensors; novel energy efficient cooperative spectrum sensing scheme; periodic sleep-listen mechanism; Energy consumption; Energy efficiency; Games; Sensors; Signal to noise ratio; Sociology; Statistics; Cognitive radio sensor network; cooperative spectrum sensing; energy efficient; evolutionary game;
Conference_Titel :
Local and Metropolitan Area Networks (LANMAN), 2015 IEEE International Workshop on
Conference_Location :
Beijing
DOI :
10.1109/LANMAN.2015.7114726
