瑞利衰落信道下MMRT的性能分析
doi: 10.3724/SP.J.1146.2006.00864
Performance Analysis of MMRT in Rayleigh Fading Channels
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摘要: 为了提高系统性能减少系统功耗和硬件复杂度等，该文提出一种在基站采用最少选择最大比发射的发送分集技术，即MMRT。利用随机矩阵和排序统计的理论知识，该文对MMRT技术进行了详细的性能分析。并得到其在瑞利衰落信道下的中断概率、误码率等的确切表达式。最后通过仿真试验验证了理论分析的正确性。Abstract: In order to improve the system performance and reduce hardware complexity further, a new transmit diversity scheme, Minimum-selection Maximum Ratio Transmit (MMRT) scheme is proposed. Based on the theory on random matrix and order statistics, an exact analysis for MMRT is carried out. The closed-form outage probability and the Bit Error Rate (BER) of the MMRT system, for Rayleigh fading scenario, are presented. The analytical results are verified by simulation.
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[1] Proakis J G. Digital Communications. 3rd ed., New York:McGraw-Hill, 1995: 543-554。 [2] Gibson T and Jerry D. The Mobile CommunicationsHandbook. Piscataway: IEEE Press, 1999: 230-246. [3] Alamouti S M. A simple transmit diversity technique forwireless communications[J].IEEE Journal on Selected Areas inCommunications.1998, 16(8):1451-1458 [4] Winters J H. Switched diversity with feedback for DPSKmobile radio systems[J].IEEE Trans. on Vehicular Technology.1983, 32(4):134-150 [5] Lo T K Y. Maximum ratio transmission. IEEE Trans. onCommun., 1999, 47(1): 1458-1461. [6] Vanganuru K and Annamalai A. Analysis of transmitdiversity schemes: impact of fade distribution spatialcorrelation and channel estimation errors. IEEE Trans. onWireless Commun, 2003, 3(2): 1023-1034. [7] Cavers J K.Single-user and multiuser adaptive maximal ratiotransmission for Rrayleigh channels[J].IEEE Trans. onVehicular Technology.2000, 49(6):2043-2050 [8] Paulraj A,Nabar R, and Gore D. Introduction to Space-TimeWireless Communications. New York:Cambridge UniversityPress, 2003: 345-436. [9] David H A. Order Statistics. New York.[J].NY: John Wiley Sons, Inc.1981,:- [10] 肖啸. 新一代无线通信系统中的传输方案及资源分配研究.[博士论文], 华中科技大学, 2006. [11] Simon M K and Alouini M S. Digital Communications overGeneralized Fading Channels: A Unified Approach toPerformance Analysis. New York, NY: John Wiley Sons,2000: 342-375. -
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