中继蜂窝网中基于负载均衡的中继节点选择算法  

A Load Balancing Relay Selection Algorithm for Relay Based Cellular Networks

作　　者：江帆[1] 王本超[2] 

机构地区：[1]西安邮电学院通信与信息工程学院,西安710121 [2]华为技术有限公司,广东深圳518129

出　　处：《电讯技术》2011年第10期80-85,共6页Telecommunication Engineering

基　　金：陕西省自然科学基金资助项目(2011JQ8027);陕西省教育厅自然科学基金项目(11JK1009);教育部新世纪优秀人才支持计划(NCET-08-0891)~~

摘　　要：提出了一种中继蜂窝网络的基于负载均衡的中继节点选择策略(Load Balancing Relay Selec-tion,LB-RS)。根据每个用户的具体信道状况以及中继节点服务的用户数目,LB-RS以分布式的方式为每个用户选择最优的中继节点。仿真结果表明,与基于单一物理层参数的中继节点选择算法相比,所提出的中继选择算法综合考虑了物理层的信道状况以及MAC层的资源与用户状况,有效地利用中继节点选择来实现小区内的负载均衡,获得了吞吐量性能与用户公平性之间的折衷。A load balancing relay selection algorithm（ LB - RS） is presented for relay based cellular networks. According to current user channel conditions as well as the user numbers that relay serves, LB - RS chooses the optimal relay node for each user in a distributed way. Simulation results demonstrate that compared with other relay selection schemes only based on physical parameters, LB - RS achieves load balancing through effective relay selection method. This is realized by jointly considering physical layer conditions as well as MAC layer conditions, so as to efficiently obtain a tradeoff between the system throughput and the user equity.

关 键 词：中继蜂窝网络 中继选择 负载均衡 协作中继 

分 类 号：TN925.8[电子电信—通信与信息系统]