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TDS-CDMA移动通信中的Pre-Rake分集合并 被引量：2

Pre-Rake diversity combining in TD-SCDMA mobile communications
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摘要 提出在时分同步码分多址(TD SCDMA)系统中采用基于QPSK调制的Pre Rake技术,亦包括TD SCD MA反向信道估计算法与系统性能分析理论。理论与仿真结果表明Pre Rake技术可使TD SCDMA移动用户获得多径分集增益,降低其误码率,加之把RAKE接收机从移动台端搬移到基站端来实现的优点,Prerake技术可在TD SCDMA系统中应用。 This paper has proposed to apply the PreRake technique based on the quarter phaseshift keying (QPSK) modulation in the timedivisionsynchronous codedivision multipleaccess (TDSCDMA) systems and has also included the inverse channel estimation algorithm for the PreRake parameters and the theory of system performances. The theory and simulation results show that the PreRake approach can let TDSCDMA mobile users obtain the gain of multipath diversity combinations and reduce their bit error rate (BER). This advantage, together with the superiority over rake receiver of moving the Rake circuits from mobile units (MUs) to the base station (BS), makes the PreRake technique useful in TDSCDMA systems.
作者 肖扬 宋悦
机构地区 北京交通大学信息科学研究所
出处 《铁道学报》 EI CAS CSCD 北大核心 2003年第5期39-44,共6页 Journal of the China Railway Society
基金 国家自然科学基金资助项目(69971002)
关键词 时分同步码分多址(TD-SCDMA) QPSK Pre-Rake发射机 多径衰落 最大比合并 分集增益 TD-SCDMA QPSK Pre-Rake transmitter multipath fading maximal ratio combining diversity gain
分类号 TN914 [电子电信—通信与信息系统]
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参考文献6

  • 1CWTS TSM 01. 01 V3. 0. 0 (2002-08), China Wireless Telecommunication Standard; 3G digital cellular telecommunications system; TSM Release 3 Specifications (Release 3) [S].
  • 2Esmailzadeh R, Sourour E, Nakagawa M. Prerake diversity combining in time-division duplex CDMA mobile communications [J]. IEEE Trans Vehicular Tech. , 1999, 48(3) : 795-801.
  • 3Esmailzadeh R, Sourour E, Nakagawa M. In: Prerake diversity combining in time division duplex mobile communications[C] . Toronto, Canada: Proc. of PIMRC 1995,Sept. 1995, 2. 431-435.
  • 4Song Y, Xiao Y. In: The Performance of Pre-RAKE Diversity Combining Based on QPSK Modulation in TDD-CDMA Mobile Communications[C]. Porc. of 6th International. Beijing: Conference on Signal Processing (ICSP'02), 2002. 1351-1354.
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同被引文献16

  • 1[1]Hochwald B, Marzetta T L, Papadias C B. A transmitter diversity scheme for wideband CDMA systems based on space-time spreading [J]. IEEE J. on Selected Areas in Communications, 2001,19(1): 48-60.
  • 2[2]Tarokh V, Jafarkhani H, R. Calderbank A. Space-time block codes from orthogonal designs [J].IEEE Trans. on Information Theory, 1999, 45(5): 1456-1467.
  • 3[3]Rohani K, Harrison M, Kuchi, K. A comparison of base station transmit diversity methods for third generation cellular standards, In: Proc. of 1999 IEEE 49th Vehicular Technology Conference, Houston, TX, USA, 1999: 351-355.
  • 4[4]Paulraj A, Papadias C. Space-time processing for wireless communications [J]. IEEE Signal Processing Mag., 1997, 14(6): 49-83.
  • 5[5]Song M, Xiao Y. High data rate wireless system [C], In: Proc. of 6th International Conference on Signal Processing (ICSP'02), IEEE Inc. and Posts & Telecom. Press, Beijing, 2002: 1344-1350.
  • 6[6]Xiao Y, Habermann J, Yao W, Han H. Time-switching space-time multiuser detection for CDMA systems, In: Proc. of the 17th IEEE Region 10 International Conference on Computers, Communications, Control and Power Engineering (IEEE TENCON'02), IEEE Inc. and Posts ＆ Telecom.Press, Beijing, 2002: 1117-1121.
  • 7[8]Xiao Y, Han H, Huang C, Habermann J. Communication capacity of sectored CDMA systems.2002 6th International Conference on Signal Processing Proceedings. IEEE Inc. and Posts & Telecom. Press, Beijing, 2002, 1286-1290.
  • 8CWTS TSM 01.01 V3.0.0 (2002-08), China Wireless Telecommunication Standard; 3G Digital Cellular Telecommunications System; TSM Release 3 Specifications (Release 3)[S].
  • 9Song M,Xiao Y. High Data Rate Wireless System[A]. In: Proc. of 6th International Conference on Signal Processing (ICSP'02) [C]. Beijing: 2002.1344-1350.
  • 10Song Y, Xiao Y. The Performance of Pre-RAKE Diversity Combining Based on QPSK Modulation in TDD-CDMA Mobile Communications. In: Porc. of 6th International Conference on Signal Processing (ICSP'02)[C]. Beijing: 2002.1351-1354.

引证文献2

铁道学报
2003年 第5期

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