摘要
由于异构网络中跨层干扰等问题对Macrocell用户的影响,提出利用协作通信技术削弱其影响的方法,即通过宏基站和Femtocell用户的协作分集来改善Macrocell用户下行链路的性能,同时还基于软切换原理提出了一种中继选择策略.理论分析和仿真结果表明,基于Femtocell用户的协作通信技术在Macrocell用户性能方面明显优于直接传输.
Due to the problem of cross-tier interference affects Macrocell users in heterogeneous network, We propose a method that relying on cooperative communication technology to weaken the influence, it is to improve the downlink performance of Macrocell users through MBS and Femtocell users＇ cooperative diversity, but also a relay selection strategy based on the principle of soft switching is proposed. Theoretical analysis and simulation results show that the cooperative communication technology based on Femtocell users is significantly superior to the direct transmission in terms of the performance of Macrocell users.
出处
《微电子学与计算机》
CSCD
北大核心
2016年第10期78-81,86,共5页
Microelectronics & Computer
关键词
异构网络
协作通信
下行链路
中继选择
heterogeneous networks
cooperative communication
downlink
relay selection
