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一种用于CDMA系统的智能天线波束形成方法 被引量：2

A New Beam-forming Method for CDMA Wireless Communication Systems with Smart Antenna
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摘要 在智能天线的实际应用中,波束形成所需的时间及其复杂度是决定其能否实施的主要因素。本文分析了CDMA通信系统的特点,提出了一种新的用于CDMA系统的波束形成方法。该方法带来的好处是放宽了对时间的要求和降低了系统的复杂度,权值的稳定性也得到了提高。该方法下的系统性能仿真结果表明,与全向天线相比,系统的信干比和误比特率得到很大改善。文章最后研究了不同参考信号下系统的性能,结果表明,在强干扰情况下,用判决信号作参考信号时系统性能将下降,应避免使用。 The time requirement and complexity of beamforming are main obstacles for implementation of smart antenna. In this paper, a new beamforming method for CDMA wireless communication system is suggested. The principle of the method is that beamforming is performed after signal is despreaded. The benefits this method can bring are relaxed time requirement and low complexity of beamforing. In addition, the weight values will become more stable. The results of simulation show that system performance will be greatly improved when this beamforming method is used. In latter part of the paper, system performance based on different reference signals is also discussed.
作者 朱明华 吴惠兰 刘元安 刘海涛
机构地区 中国科学院上海微系统与信息技术研究所 北京邮电大学电信工程学院
出处 《电路与系统学报》 CSCD 2003年第3期93-97,共5页 Journal of Circuits and Systems
基金 国家自然科学基金资助项目(69782007) 教育部博士点基金资助项目
关键词 CDMA 波束形成 CDMA Beamforming
分类号 TN929.533 [电子电信—通信与信息系统]
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参考文献11

  • 1Godara L G.. Application of antenna arrays to mobile communications [J]. Part-I, Proceedings of The IEEE, 1997, 85 (7): 1029-1060.
  • 2Naguib A F, et al. Capacity improvement with base-station antenna arrays in cellular CDMA[J]. IEEE Trans. V.T., 1994, 43 (3): 691-698.
  • 3Sanka S, Sawahashi M, Adachi F. Pilot symbol-assisted decision directed coherent adaptive array diversity for DS-CDMA mobile radio reverse link[J]. IEICE Trans. Fundamentals, 1997, E80 (A): 2445-2454.
  • 4Paulraj A, Papadias C. Space-time processing for wireless communications [J]. IEEE Signal Processing Mag., 1997, (11): 49-83.
  • 5Kohno R. Sptial and temporal communication theory using adaptive antenna array[J]. IEEE Personal Commun., 1998, 5 (1): 28-35.
  • 6Ramous J, Zoltowski M D, Liu H. A low-complexity space-time processor for DS-CDMA communications[J]. IEEE Signal Processing Lett.,1997, 4 (9): 259-261.
  • 7Compton R. An adaptive array in a spread spectrum communication system [J]. Proceedings of The IEEE, 1978, 66 (3): :289-298.
  • 8Fruth F, Geraniots E. An LMS arrays for CDMA wireless communication systems [J]. Proc. Of SSAP, 1996, 525-528.
  • 9Saurd B, et al. Performance of CDMA mobile communication systems using antenna arrays [J]. IEEE ICASSP'93, 1993, (4): 153-156.
  • 10Proakis J G. Digtial communications [M]. 3^nd ed. New York: Mcgraw-Hill, 1995.

同被引文献14

  • 1.[EB/OL].http://www.palowireless.com/3g/docs/TD-SCDMA-China.pdf.10,2004-04-10.
  • 2Join S S, et al. A novel smart antenna system implementation for broadband wireless communications[J]. IEEE Trans,2002, AP-50(5):600～606.
  • 3Rong Z. Simulation of Adaptive Array to CDMA System[D]. The Virginia Polytechnic Institute and State University,1996.
  • 4Rong Z, P Petrus.TS Rappaport, JH Reed. Despread-Respread Multi-Target Constant Modulus Array for CDMA Systems[J]. IEEE Communications Letters, July 1997:114～116.
  • 5Agee B G.The least-squares CMA:A new technique for rapid correction of constant modulus signals[J].IEEE Int.Con.Acoustics,Speech,and Signal Processing,1986(4):953-956.
  • 6Rong Z.Simulation of Adaptive Array Algorithms for CDMA Systems[D].[S.l]:The Virginia Polytechnic Institute and State University,1996.
  • 7JEFFREY D CONNOR.A Study of Despread-Respread Multitarget Adaptive Algorthms in A AWGN Channel[D].[S.l]:FAMU/FSU College of Engineering,2005.
  • 8张华,龚耀寰,李会勇.WCDMA系统上行链路阵列接收及自适应并行干扰对消技术[J].电子学报,2001,29(12):1589-1592. 被引量：3
  • 9林峰,倪巍,王宗欣.智能天线中一种抑制干扰的波束形成算法[J].复旦学报（自然科学版）,2002,41(2):159-164. 被引量：4
  • 10黄开枝,陈国安,王京,王有政.智能天线和空间分集接收技术[J].电讯技术,2002,42(4):99-104. 被引量：7

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电路与系统学报
2003年 第3期

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