无线网络中谈判解的协作带宽分配策略

为了促使无线网络中的"自私"节点参与合作,提出了谈判解协作带宽分配(CBA)策略,解决了节点间采用交换带宽资源协作传输,彼此以多大带宽中继对方数据的问题.首先,将两个节点的协作带宽分配问题建模为合作博弈中的谈判过程;之后,采用拉格朗日乘数法得到两个用户的纳什谈判解(NBS)协作带宽分配;其次,提出了一种新的Kalai-Smorodinsky谈判解(KSBS)协作带宽分配策略;最后,对两种谈判解协作带宽分配策略的公平性进行了研究.仿真表明,KSBS协作带宽分配策略和NBS协作带宽分配策略对提升用户效用的作用基本相同,但KSBS策略比NBS策略更为公平.

Cooperation bandwidth allocation strategies based on bargaining solutions in wireless networks

To promote the selfish nodes of wireless networks to participate in cooperative communication,the cooperation bandwidth allocation ( CBA) strategies based on bargaining solutions are proposed. The pro-posed strategies solve the problem that how many bandwidth the nodes should share with each other in co-operative communication. Firstly,the problem of CBA is modeled as a bargaining process in cooperative game,and then the solution of CBA based on Nash bargaining solution ( NBS) is obtained by adopting La-grange multiplier method. Secondly,a new strategy based on Kalai-Smoriodinsky bargaining solution ( KS-BS) is raised. Finally,the fairness of CBA based on NBS and KSBS is studied in detail. Simulation results represent that the proposed KSBS-based CBA has the similar performance with the NBS-based CBA in term of users' utility,but has the fairer performance.