一种新型无线网络自适应分层覆盖系统研究

摘要

First, a utility function was proposed to evaluate the performance of hierarchical cellular system. Both the blocking probability and handover times were considered in the function. Second, an adaptive hierarchical cellular system was proposed which allows the mobile equipments in macrocells to communicate with any base station in the system. Simulation results indicate that the adaptive hierarchical cellular system performances better than hierarchical cellular system in blocking probability, handover times and utility function.%首先提出一种衡量分层覆盖系统性能的效用函数,该效用函数综合考虑了阻塞率和切换次数；然后,提出了一种自适应分层覆盖系统,该系统允许接入宏蜂窝的移动台可以与任何基站通信.仿真结果表明:在阻塞率、切换次数、效用函数等方面自适应分层覆盖系统优于传统分层覆盖系统.