基于QoS的MIMO中继网络容量分析  

Capacity analysis of QoS-based MIMO relay networks

作　　者：章坚武[1] 韩畅[1] 叶霓[1] 

机构地区：[1]杭州电子科技大学通信工程学院,浙江杭州310018

出　　处：《电子技术应用》2011年第3期102-105,共4页Application of Electronic Technique

基　　金：浙江省自然科学基金人才项目(No.R105473);浙江省研究生创新基金(No.ZX090702009)

摘　　要：设计了一种MIMO中继网络模型,研究并分析了带有服务质量(QoS)需求的中继网络容量,推导了MIMO中继网络容量的近似表达式。仿真分析表明,在一定的信噪比条件下,随着中继节点数的增加,网络的可达容量性能明显得到改善,且在低信噪比(SNR)区域,所提方案也可以获得较高的容量增益。An efficient model of MIMO relay network is proposed in this paper, capacity of MIMO relay networks with Quality of Service （QoS） guarantees according to the designed networks model is studied, and the approximate expression of the capacity of MIMO relay network is derived in detail. Simulation results demonstrate that, with a certain signal-to-noise ratio （SNR） constraints, performance of network achievable capacity could be improved obviously with the increasing of relay nodes, while the proposed scheme could also attain ideal capacity gain in low SNR regions.

关 键 词：MIMO中继网络 容量分析 服务质量 信噪比 性能增益 

分 类 号：TN929.5[电子电信—通信与信息系统]