摘要
提出了一种改进的认知无线电频谱共享模型。该模型综合考虑了主用户的收益受到所有次用户请求带宽的影响,以及每个次用户的收益受到其他次用户请求带宽的影响;同时,与次用户竞争的主用户能够通过选择最佳带宽定价来获得最大的收益,相互竞争或合作的次用户通过从有限的频谱中改变请求频谱带宽来获得最大收益。对改进模型的静态博弈、动态博弈及其稳定性、帕累托最优等特性的仿真结果证明该模型适应实际情况。
An improved spectrum sharing model was proposed in cognitive radios.The improved model considers com-prehensively impact on the primary users’ profits by all secondary users’ bandwidth requirement,and impact on every secondary user’s profit by other secondary users’ bandwidth requirement.Meanwhile,primary users in competition with secondary users can gain maximum profits by finding the optimal price of bandwidth,secondary users compete or coop-erate with each other can gain maximum profits by changing the required spectral bandwidths in limited spectrum.The simulation on features of this improved model,such as static game,dynamic game and its stability,Pareto optimal,has proved that this model adapts to the actual situation.
出处
《通信学报》
EI
CSCD
北大核心
2010年第2期136-140,共5页
Journal on Communications
基金
国家高技术研究发展计划("863"计划)基金资助项目(2009AA01Z212)~~
