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

  • 제36권9A호
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  • Pages.776-783
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  • 2011
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  • 1226-4717(pISSN)
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  • 2287-3880(eISSN)
한국통신학회 (The Korean Institute of Commucations and Information Sciences)
권호 표지
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불완전한 채널정보를 사용하는 다중안테나 적응형 복호 후 전송 중계 프로토콜의 Diversity-Multiplexing Tradeoff 분석

The Diversity-Multiplexing Tradeoff for Multiple-Antenna Adaptive Decode and Forward Relay Protocols Exploiting Imperfect CSIT

  • 윤한상 (건국대학교 전자정보통신공학원) ;
  • 윤은철 (건국대학교 전자공학원)
  • 투고 : 2011.05.30
  • 심사 : 3011.09.21
  • 발행 : 2011.09.30
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초록

본 논문에서는 적응형 복호 후 전송 (decode-and-forward) 중계 프로토콜이 송신을 위해 불완전한 채널정보를 사용할 때, 목적지 노드에서만 다중 안테나를 사용하는 경우, 릴레이 노드에서만 다중안테나를 사용하는 경우, 그리고 소스 노드에서만 다중 안테나를 사용하는 경우에 대한 diversity-multiplexing tradeoff (DMT) 상계 함수들을 유도하여 그 결과를 제시한다. 또한 소스 노드와 목적지 노드, 소스 노드와 릴레이 노드, 릴레이 노드와 목적지 노드 사이의 불완전한 채널정보들이 점근적 조건하에 있을 경우, 적응형 복호 후 전송 중계 프로토콜이 얻을 수 있는 다이버시티 이득을 조사한다.

In this paper, assuming that the transmitter can exploit imperfect channel state information (CSI), the diversity-multiplexing tradeoff (DMT) functions of three adaptive decode-and-forward (DF) relay protocols, each of which uses multiple-antennas at the destination node, at the relay node, or at the source node are derived. When the imperfect CSI qualities for the source-relay link, the relay-destination link, and the source-destination link are subject to asymptotic conditions, the additional diversity gains attainable by exploiting the imperfect CSI at the transmitter for those three adaptive DF relay protocols are investigated.

키워드

참고문헌

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