基于网络编码的用户协作博弈资源分配算法  

A NBS Resource Allocation for Network Coding Based Subscriber Cooperation

作　　者：滕颖蕾[1] 宋梅[1] 刘媛媛[1] 杨睿哲[2] 宋俊德[1] 

机构地区：[1]北京邮电大学电子工程学院,北京100876 [2]北京工业大学电子信息与控制工程学院,北京100124

出　　处：《北京邮电大学学报》2011年第3期48-52,共5页Journal of Beijing University of Posts and Telecommunications

基　　金：国家自然科学基金项目(60971083);中加国际科技合作基金项目(2010DFA11320);中瑞国际科技合作基金项目(2008DFA12090)

摘　　要：在正交频分多址接入两用户协作中继系统中,为进一步提高协作系统的吞吐量,提出在协作节点处运用网络编码(NC)进行全双工协作通信的传输方案.同时,引入纳什议价均衡(NBS)博弈,考虑协作用户吞吐量均衡,设计了双层纳什议价均衡(DL_NBS)博弈来协调用户对间的子载波和功率分配.仿真结果表明,基于NC协作系统方案的吞吐量比普通协作传输模式提高约49.1%,比直传模式提高约46.4%;DL_NBS博弈资源分配方案与传统资源分配算法相比,不仅更适用于分布式用户协作场景,且能取得公平性和有效性的折中.A network coding （NC） based two-subscriber-cooperation scheme in a full-duplex transmission mode of orthogonal frequency-division multiple access system is proposed to further improve the net- work throughput. And a double level Nash bargaining solution （DL_NBS） game is adopted to resolve the inter-user resource bargaining problem. In the inter-user pair, the pairwise capacity based NBS is utilized to allocate subcarrier and distribute power between the cooperative subscribers. Simulations show that the proposed CoNC achieves a system capacity of 49. 1% higher than the normal cooperative transmission, and 46.4% higher than the direct transmission. Meanwhile, compared with the traditional resource allocation algorithms, the two-level NBS solution achieves a well tradeoff between fairness and efficiency, and perfectly suits the distributed subscriber cooperation scenario as well.

关 键 词：用户协作 博弈论 资源分配 网络编码 纳什博弈均衡 

分 类 号：TN929.53[电子电信—通信与信息系统]