基于线性价格机制的多认知无线网络资源配置框架  

Resource Configuration Framework Based on Linear Pricing Function in Multi-Cognitive Radio Networks

作　　者：郑元兵[1] 朱韵攸 王灿[2] 张兴[1] 刘孝先[1] 

机构地区：[1]国网重庆市电力公司信通分公司,重庆401123 [2]重庆大学通信工程学院,重庆400044

出　　处：《西南大学学报（自然科学版）》2016年第6期172-179,共8页Journal of Southwest University(Natural Science Edition)

基　　金：国家自然科学基金资助项目(60872038);国网重庆市电力公司科技项目(2014渝电科技37#)

摘　　要：在异构多认知无线网络共存场景中,资源配置是共存协调的关键之一.构建了一种基于线性价格机制的多认知无线网络资源配置框架:将用户带宽需求差异用信道传输特性描述,运用线性价格函数表征认知用户效用和认知无线网络收益,将资源配置抽象为博弈模型,包括三阶段动态博弈:第一阶段,认知无线网络确定向主无线网络租用带宽;第二阶段,认知无线网络确定认知用户使用带宽单价;第三阶段,认知用户通过比较接入不同网络时自身效用,选择能最大化效用的网络接入.阐述了该动态博弈纳什均衡存在的条件和均衡点特性,仿真验证了该框架的合理性和有效性.In multiple cognitive radio（CR）networks,resource configuration is one of the key technologies for coexistence and coordination.This paper proposes a resource configuration framework based on linear pricing function in which different bandwidth requirements are indicated by channel transmission properties.A linear pricing function is adopted to represent the utility of secondary users（SUs）and CR network＇s profit.There are three steps in this dynamic game.First SUs determine the bandwidth they rent from the primary user.Then CR networks determine the bandwidth price for each SU.In the third stage,each SU accesses the network that maximizes its utility.We also expound the existence condition of the Nash Equilibrium and its characteristics.Simulation results validate the reasonability and effectiveness of our proposed framework.

关 键 词：多认知无线网络 动态资源配置 网络共存 博弈论 

分 类 号：TN919.1[电子电信—通信与信息系统]