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

  • 제15권1호
  • /
  • Pages.1-11
  • /
  • 2004
  • /
  • 1226-3133(pISSN)
  • /
  • 2288-226X(eISSN)
한국전자파학회 (The Korean Institute of Electromagnetic Engineering and Science)
권호 표지

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

The Implementation and Performance Analysis of Channel Card of Smart Antenna System in CDMA 1x Environment

  • 박재용 (한양대학교 정보통신공학과) ;
  • 안성수 (명지대학교 정보통신공학과) ;
  • 최승원 (한양대학교 전자통신전파공학과)
  • 발행 : 2004.01.01
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초록

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.

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.

키워드

참고문헌

  1. Ph. D. Dissertation, Department of Electrical Enginnering, Stanford University Adaptive Antennas for CDMA wireless Networks A.F.Naguib
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  7. IEEE Trans. Antennas and Propagations v.45 no.9 Design of an adaptive Antenna Array for Trancking the Source of Maximum Power and Its Application to CDMA mobile Communications S.Choi;D.Yun
  8. 50th Vechicular Technology Conference Adaptive Beamforming form the Generalized Eigenvalue Problem with a Linear Complexity for a Wideband CDMA Channel S.Kwon;I.Oh;S.Choi
  9. 한국통신학회지 v.18 no.6 cdma2000을 위한 스마트 안테나 설계 기술 노경래;안성수;최승원
  10. Telecommunication Review v.7 no.5 A New Blind Adaptive Algorithm for a Real-time Design of a Smart Antenna D.Shim;S.Choi
  11. IEEE AP-S International Symposium and USNC/URSI National Radio Science Meeting Performance Improvement of Smart Antenna System in Terms of Searching and Tracking Capabillity Due to Phase Diversity Technique in IS2000 1x signal Environment H.Hwang;J.Park;Y.Kim;S.Ahn;H.Im;S.Choi
  12. IEEE Trans on Vehicular Technology A novel adaptive beamforming algorithm for a smart antenna system in a CDMA mobile comm. Environment S.Choi;D.Shim
  13. IEEE VTC 2001 A Performance Analysis of a Smart Antenna System Utilizing the Lagrange Algorithm for CDMA2000 Signal Environment K.Noh;W.Lee;S.Choi