한국통신학회논문지 B : 네트워크 및 융합 서비스, v.29, no.10A, pp.1159-1166
ISSN
1226-4717
Publisher
한국통신학회 (KICS)
Language
Korean
Type
Journal Article
Abstract
이 논문은 페이딩 채널에서 직접확산 부호분할다중접속(DS-CDMA) 시스템을 위한 선형제약 변형 최소평균자 승오차(MMSE) 검출의 이전 연구에 대한 후속 연구이다. 변형된 MMSE 검출과 파일로트 심볼의 도움을 받는 채널추정(PSACE)의 결합시 발생하는 시스템 동작불능을 방지하는 조건을 구하였다. 선형제약 변형 MMSE의 해가 레일레이 페이딩에서의 시간변화에 대해 이론적으로 강건함을 보였다. 이 사실은 시뮬레이션 결과와 일치한다. 아울러 어떤 조건에서 선형제약 변형 MMSE 검출이 출력 신호대간섭-잡음비(SINR)를 최대화하였다.
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