The Journal of Korean Institute of Electromagnetic Engineering and Science (한국전자파학회논문지)

The Korean Institute of Electromagnetic Engineering and Science (한국전자파학회)
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The Implementation and Performance Analysis of Channel Card of Smart Antenna System in CDMA 1x Environment

CDMA2000 1x 환경하에서 스마트 안테나 시스템의 채널카드 구현 및 성능 분석

  • 박재용 (한양대학교 정보통신공학과) ;
  • 안성수 (명지대학교 정보통신공학과) ;
  • 최승원 (한양대학교 전자통신전파공학과)
  • Published : 2004.01.01
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Abstract

This paper presents an implementation of smart antenna system channel card that executes modulation/demodulation. Operations and performances of modules of implemented channel card is confirmed and field test of channel card shows the performance of smart antenna systems. Based on the analysis obtained from the field test in cdma2000 1x environments which contains multipath lading, it is confirmed that smart antenna system channel card provide exact beampattern to the DOA and performance of proposed channel card has better FER by 5∼8 times, compared to 2 antenna diversity system.

본 논문에서는 변복조(modulation/demodulation) 기능을 수행하는 스마트 안테나 기지국용 채널카드(channel card)를 실제 하드웨어로 구현하였다. 구현된 채널카드(channel card)는 우선적으로 각 구성 모듈의 기능 및 성능을 확인하였고, 완성된 채널카드를 스마트 안테나 시스템에 장착해 실제 필드 시험을 수행하여 성능을 확인하였다. 본 논문에서는 다중경로 페이딩이 존재하는 CDMA2000 1X 환경에서 채널카드의 성능을 필드 실험을 통해서 분석한 결과, DOA(Direction Of Arrival) 방향으로 정확한 빔패턴이 형성되는 것을 확인하였고, 채널카드가 내장된 스마트 안테나 시스템이 기존의 2안테나 다이버시티 시스템보다 FER(Frame Error Rate)이 5∼8배정도 우수하다는 것을 확인하였다.

Keywords

References

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