期刊文献+

一种基于合同理论的动态频谱分配模型

Dynamic Spectrum Sharing Model Based on Contract Theory
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摘要 针对认知无线电技术中的频谱分配问题,考虑一个主用户和多个次用户的认知场景,提出一种基于合同理论的动态频谱分配模型,并引入粒子群优化算法对模型进行求解。模型中,主用户对不同次用户提供不同质量的频谱资源以获得收益最大化,达到优化资源分配、提高频谱利用率的目的。经仿真分析验证,该模型下获得的系统效用接近理论上可获得的最大系统效用,具有实际应用的可行性。 In the view of the problem of spectrum allocation on cognitive radio technology, a dynamic spectrum sharing model based on contract theory is proposed, which considering the cognitive radio network with one primary user and multiple second users. And particle swarm optimization (PSO) algorithm is been introduced to solve this model. In the model, the primary user provides different quality of the spectrum resources to different second us- ers to maximize its profit. Performance analysis through simulation shows that the system efficiency on the model is close to the theoretical optimal system efficiency, and this model adapts to the actual situation.
出处 《电视技术》 北大核心 2014年第9期116-120,共5页 Video Engineering
基金 国家自然科学基金项目(61102062) 教育部科学技术研究重点项目(212145) 重庆市科委自然科学基金项目(cstc2011jjA1192) 重庆市教委科学技术研究项目(KJ110503) 重庆邮电大学博士启动基金项目(A2010-11)
关键词 认知无线电 动态频谱分配 合同理论 不同质量 粒子群优化算法 cognitive radio dynamic spectrum sharing contract theory different quality PSO algorithm
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参考文献12

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