北京邮电大学学报

  • EI核心期刊

北京邮电大学学报 ›› 2001, Vol. 24 ›› Issue (3): 65-69.

• 学术论文 • 上一篇    下一篇

CDMA中波束成型方法的研究

杜志敏, 周 胜, 龚 平, 吴伟陵   

  1. 北京邮电大学信息工程学院, 北京 100876
  • 收稿日期:2000-11-23 出版日期:2001-10-10
  • 作者简介: 杜志敏(1975—),男,博士生.
  • 基金资助:
    国家自然科学基金重大资助项目(69896243)

Study of Beam-Forming Methods in a CDMA System

DU Zhi-min, ZHOU Sheng, GONG Ping, WU Wei-ling   

  1. Information Engineering School, Beijing University of Posts and Telecommunications, Beijing 100876, China
  • Received:2000-11-23 Online:2001-10-10
  • Supported by:
     

摘要: 提出一种新的预波束成型方法——多用户角度匹配法, 并研究了基于它的智能扇区系统调整策略和阻塞性能, 仿真结果表明: 相比于两种常用波束成型方法, 该方法有更优的平均信干比增益; 所提出的智能扇区系统可明显提高集群效率, 特别是当用户非均匀到达时.

关键词: 码分多址联接, 波束切换天线, 波束成型, 智能扇区

Abstract: A new beam-forming method for switched beam smart antenna application in a CDMA system is proposed.The working principle and blocking characteristic of a new smart sector system based on it are also studied.Simulations show that our beam-forming method outperforms two traditional ones.The proposed smart sector system can obviously improve the trunking efficiency,especially when users' DOA follows nonuniform distribution.

Key words: CDMA, switched beam smart antenna, beam forming, smart sector

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