基于演化博弈论的功率控制和垂直切换研究

发布时间：2018-11-15 07:58

【摘要】：基于演化博弈论分别构建了无线资源管理中功率控制和垂直切换的形式化模型,设计了一种基于定价机制的功率控制收益函数,根据3GPP对无线通信业务的分类,将切换判决过程划分为4个不同层次,降低了切换决策的复杂性,定义了目标网络的代价函数,将网络参数划分为成本型参数和收益型参数两类,并对其进行归一化处理,实现了异构网络参数比较的公平性.证明了功率控制博弈和垂直切换博弈中存在唯一的演化稳定策略,给出了基于演化博弈论的功率控制算法和垂直切换方案.仿真结果表明,给出的功率控制算法减少了网络中隐终端的数目,提高了网络容量;垂直切换方案既可以减少切换发生的频率,增加网络选择的准确性,又使运营商与用户之间的利益得到平衡.
[Abstract]:Based on evolutionary game theory, the formal models of power control and vertical switching in wireless resource management are constructed, and a power control revenue function based on pricing mechanism is designed. According to the classification of wireless communication services by 3GPP. The switching decision process is divided into four different levels, which reduces the complexity of handoff decision, defines the cost function of the target network, and divides the network parameters into two types: the cost parameter and the income parameter, and normalizes them. The fairness of parameter comparison in heterogeneous networks is realized. It is proved that there is a unique evolutionary stability strategy in power control game and vertical switching game. The power control algorithm and vertical switching scheme based on evolutionary game theory are presented. Simulation results show that the proposed power control algorithm reduces the number of hidden terminals in the network and improves the network capacity. The vertical handoff scheme not only reduces the frequency of handoff, increases the accuracy of network selection, but also balances the interests between operators and users.
【作者单位】：广西可信软件重点实验室(桂林电子科技大学);中国科学院信息工程研究所;
【基金】：国家自然科学基金项目(61363070,61100186,61262074)
【分类号】：TN92

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