Performance Analysis of System Architecture using Wireless Relay Station and Virtual MIMO in WiBro Uplink

D. Han, Jihoon Lee, Young-Min Seung, Sung-Joon Cho
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引用次数: 1

Abstract

Introduction of Relay Station (RS) is unavoidable and wireless RS has gained more interest for next generation mobile communication systems including Wireless Broadband (WiBro) system. Also, Multi-Input Multi-Output (MIMO) scheme is an emerging technology, offering high spectral efficiency. In this paper, we propose a system architecture applying Space Time Block Coding (STBC) algorithm in RS-Base Station (BS) link and Virtual MIMO (V-MIMO) scheme in Mobile Station (MS)-RS link based on WiBro network using wireless RS. The proposed system architecture is analyzed comparing with conventional single antenna system in uplink. As a result of simulation, the proposed system architecture outperforms the 2~3dB Bit Error Rate (BER) performance in RS-BS, MS-RS, MS-RS-BS uplink. And uplink transmission capacity improved 1.7-1.8 times. The system architecture proposed in this paper, is efficient because it can improve transmission gain and system capacity without change of MS.
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WiBro上行链路中采用无线中继站和虚拟MIMO的系统架构性能分析
中继站(RS)的引入是不可避免的,无线RS在包括无线宽带(WiBro)系统在内的下一代移动通信系统中得到了越来越多的关注。此外,多输入多输出(MIMO)方案是一种新兴的技术,具有很高的频谱效率。本文提出了一种基于无线RS的WiBro网络,在RS- base Station (BS)链路上应用STBC算法,在MS -RS链路上应用V-MIMO方案的系统架构,并在上行链路上与传统的单天线系统进行了对比分析。仿真结果表明,该系统结构优于RS-BS、MS-RS、MS-RS- bs上行链路中2~3dB的误码率(BER)性能。上行传输容量提高1.7-1.8倍。本文提出的系统架构在不改变MS的情况下提高了传输增益和系统容量,是一种高效的系统架构。
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