基于博弈论的合作频谱感知策略设计  

Designing on Cooperative Spectrum Sensing Strategy based on the Game Theory

作　　者：包志强[1] 曹元元[1] 史园园[1] BAO Zhi-qiang CAO Yuan-yuan SHI Yuan-yuan(School of Communication and Information Engineering, Xi＇an University of Posts and Telecommunications, Xi＇an 710121, China)

机构地区：[1]西安邮电大学通信与信息工程学院,西安710121

出　　处：《光通信研究》2017年第2期75-78,共4页Study on Optical Communications

基　　金：陕西省自然科学基金资助项目(2012JQ8011);国家自然科学基金资助项目(61271276)

摘　　要：为有效抑制合作感知中的自私用户,设计了一种关于提交和触发的博弈策略以及对应的效用函数。融合中心通过控制认知用户的收益来有效抑制自私用户,促使其选择有利的提交策略,并转变为正常用户,而各个认知用户的累计收益又决定着其得到融合中心提供服务的优先级。MATLAB仿真结果表明,在设置合适的奖惩参数关系的条件下,所提算法能够提高频谱感知系统的整体性能。Aiming at effectively suppressing the selfish users in cooperative perception, a strategy and triggering policy of game theory with a reasonable utility function are proposed. The fusion center inhibit the selfish users effectively by controlling cognitive users＇ benefits and prompt the cognitive users to choose favorable submission, who are eventually changed to the normal users. The cumulative benefits of each cognitive user determine the service priority provided from the fusion center. Finally, the MATLAB simulation results show that the overall performance of spectrum sensing system is improved by setting appropriate parameters of the relationship between there wards and punishments.

关 键 词：合作频谱感知 博弈策略 效用函数 感知性能 

分 类 号：TN98[电子电信—信息与通信工程]