瑞利-对数正态联合衰落下多跳宏分集的性能分析
Performance Analysis of Multi-hop Macro-diversity in Rayleigh-Lognormal Composite Fading
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摘要: 基于多跳传输的特点,提出了一种多跳宏分集。以3个基站构成的六边形宏分集为模型,分别在纯阴影和联合衰落信道下研究了上行链路最大比合并(MRC)的DPSK误码率。分析表明,新系统的性能要优于传统单跳宏分集系统,多跳中继能增强系统性能随移动终端位置变化的鲁棒性,对改善无线链路的可靠通信较有好处。Abstract: Based on the concept of multi-hop transmission, a multi-hop macro-diversity is presented. In pure lognormal and Rayleigh-lognonnal composite fading channels, a hexagonal macro-diversity cellular system is investigated. The Maximum Ratio Combing (MRC) is considered for the uplink analysis of the Bit Error Rate (BER) for DPSK. Numerical results show that the performance of the new system outperforms that of the conventional single-hop macro-diversity system. The multi-hop relaying can enhance the robustness of system performance to the different location of one mobile station, and it is benefit to reliable communication of the radio link.
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WWRF/WG4. Relaying Subgroup White Paper: Relay-based deployment concepts for wireless and mobile broadband cellular radio. Version 0.1, Proc. of the 9th WWRF Meeting, Zurich,Switzerland. July 1-2, 2003.[2]胡健栋,程卫军,等.现代无线通信技术.北京:机械工业出版社,2003:159.[3]裴小燕.CDMA系统中分集技术的研究.[博士论文],北京:北京邮电大学,2001,7.[4]田辉.自组织移动通信网络控制协议研究.[博士论文],北京:北京邮电大学,2003,7.[5]Cheng Weijun, Hu Jiandong. Performance analysis of multi-user cooperative diversity systems in Rayleigh fading channels. Proc.of ISCIT2003, Thailand, Sept. 3-5, 2003:35 - 39.[6]Stuber M G L. Principles of Mobile Communication. 2nd Edition,Norwell, MA: Kluwer Academic Publishers, 2002:130 - 131.[7]程卫军,胡健栋.无线蜂窝网络中一种新的多跳宏分集[J].通信学报,2003,24(11A):87-92.[8]Simon M K.[J].Alouini M S. Digital Communication over Fading Channels: A Unified Approach to Performance Analysis. New York: Wiley Sons.2000,:-[9]Hasna M O, Alouini M S. Performance analysis of two-hop relayed transmissions over Rayleigh fading channels [A]. Proc. of IEEE VTC, Vancouver, British Columbia, Canada, Sept. 2002:1992- 1996. -
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