journal6 ›› 2003, Vol. 24 ›› Issue (4): 24-26.

• Physics and electronics • Previous Articles     Next Articles

Scheme of Smart Antenna in CDMA System


  1. (1.Dept.of Electronic Engineering,Beijing University of Aero.& Astro.,Beijing 100083,China;2.Co.of Wangtong Tongliao,Tongliao 028000,Neimenggu China)
  • Online:2003-12-15 Published:2012-11-06

Abstract: With the trend that CDMA will be the dominant multi-access scheme in the new generation of wireless communication,how to apply spatial processing in CDMA system has been becoming the emphasis of research in smart antenna.A proper method is space-time processing due to the space-time structure of wireless channel.Beamforming can be combined with RAKE to form 2D RAKE receiver,which can effectively weaken the enhancement of MAI in conventional RAKE receiver.However a more effective method is to use space-time filtering.These two scheme will be discussed and the structure and realization will be presented.

Key words: smart antenna, CDMA, space-time processing

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