The Journal of Korean Institute of Communications and Information Sciences (한국통신학회논문지)

The Korean Institute of Commucations and Information Sciences (한국통신학회)
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Performance Analysis of Arbitrary Rectangular QAM over Nakagami Fading Channels with MRC in the Presence of Co-channel Interference

동일 채널 간섭이 존재하는 나카가미 채널에서 임의 직사각 QAM 신호의 MRC 다이버시티 수신 성능

  • 현광민 (한양대학교 전자전기컴퓨터공학부) ;
  • 윤동원 (한양대학교 전자전기컴퓨터공학부) ;
  • 박상규 (한양대학교 전자전기컴퓨터공학부)
  • Published : 2004.03.01
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Abstract

General closed-form expression is derived and analyzed for the exact bit error rate (BER) performance of the arbitrary rectangular Gray coded QAM signal in conjunction with maximal-ratio combining (MRC) diversity on frequency non-selective slow m-distributed Nakagami fading channel in the presence of co-channel interference. Numerical results demonstrate error performance improvement with the use of MRC diversity reception. The new expressions presented here are suitable for evaluating various cases of practical interest on wireless communication channels.

MRC 다이버시티 수신 시스템에서 상호 독립적이고 동일한 전력을 갖는 동일 채널 간섭자들이 존재할 경우, Gray 부호화된 임의 직사각 QAM 신호의 성능을 분석하였다. 본 논문에서는 L개의 수신안테나를 갖는 MRC 수신 다이버시티 시스템에서 N명의 서로 독립적이고 동일한 나카가미 분포를 갖는 동일 채널 간섭자들의 신호가 수신되는 경우의 폐쇄형 (closed-form) 평균 비트 오류 확률 수식을 유도하였다. 이 수식은 수치 계산에 의해 쉽게 계산되는 초기하 함수를 이용하여 표현되었다.

Keywords

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