摘要
针对存在自私节点的多跳认知无线网络路由选择问题,建立一个重复数据转发合作博弈模型,借鉴演化博弈理论,设计有效的自私节点激励机制,让整个网络达到拥有良好协作性的状态。根据主次用户不同的效用函数,提出一种分布式的多跳认知无线网络协作路由算法。仿真结果表明,该算法能有效提高主用户的吞吐量,增加次级用户使用授权频谱机会。
For the problem of routing selection with selfish nodes in multi-hop cognitive radio network, a duplicate data forwar-ding cooperative game model was established based on evolutionary game theory, the effective incentive mechanism of selfish nodes was designed, which made the whole network reach the state that all nodes had good collaboration. On this basis,accor-ding to the different utility functions of primary and secondary users, a distributed multi-hop cognitive radio network cooperative routing algorithm was proposed. Results of simulation show that the algorithm can improve the throughput of the primary user effectively, increase the opportunity of secondary user accessing to the licensed spectrum.
作者
刘觉夫
王建旭
王作航
LIU Jue-fu WANG Jian-xu WANG Zuo-hang(School of Information Engineering,East China Jiaotong University,Nanchang 330013, China)
出处
《计算机工程与设计》
北大核心
2017年第5期1136-1141,1166,共7页
Computer Engineering and Design
基金
国家自然科学基金项目(61163055)
江西省教育厅科学技术研究基金项目(GJJ150485)
江西省研究生创新专项基金项目(YC2015-S252)
关键词
认知无线网络
合作博弈
自私节点
激励机制
路由选择
cognitive radio networks
cooperative game
selfish node
incentive mechanism
routing selection
