Journal of the Institute of Electronics Engineers of Korea TC (대한전자공학회논문지TC)

The Institute of Electronics and Information Engineers (대한전자공학회)
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Outage Probability of Transmit Maximum-Ratio-Combining and Relay Selection Diversity for Amplify-and-Forward Relaying System

증폭 후 전달 릴레이 시스템을 위한 송신 Maximum-Ratio-Combining과 릴레이 선택 다이버시티에 대한 Outage 확률 분석

  • Min, Hyun-Kee (Dept. of Electrical and Electronic Engin., Yonsei University) ;
  • Lee, Sung-Eun (Dept. of Electrical and Electronic Engin., Yonsei University) ;
  • Hong, Dae-Sik (Dept. of Electrical and Electronic Engin., Yonsei University)
  • 민현기 (연세대학교 전기전자공학부) ;
  • 이성은 (연세대학교 전기전자공학부) ;
  • 홍대식 (연세대학교 전기전자공학부)
  • Published : 2008.02.25
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Abstract

In this paper, we consider an amplifying-and-forward(AF) dual-hop relaying system where the source node transmits to a destination node with the help of R relay nodes. We assume that the source node equips M transmit antennas, but only one antenna is equipped at the each node of relay and destination. The outage probabilities are presented when the transmit maximum-ratio-combining(MRC) is used at the source-relay(S-R) links, and the best relay selection, which selects only one relay that contributes the most to the received signal-to-noise ratio(SNR) as active relay, is combined. Simulation results validate these analytical results.

본 논문에서는 M 개의 전송 안테나를 가진 송신국(source)이 단일 안테나를 가진 R 개의 릴레이(relay)를 이용하여 단일 안테나를 가진 수신국(destination)에 신호를 전송하는 증폭 후 전달(amplify-and-forward, AF) 릴레이 시스템에서의 outage 확률 성능을 살펴본다. 이때, R 개의 릴레이 중에서 수신국에서의 수신 신호에 대한 가장 큰 신호 대 잡음비(signal-to-noise ratio, SNR)를 보장하는 하나의 릴레이를 선택하는 최적 릴레이 선택(best relay selection) 기법이 사용되고, 송신국과 선택된 릴레이 링크에서 송신 maximum-ratio-combining(transmit MRC)이 적용되었을 때의 AF 릴레이 시스템의 outage 확률을 분석한다. 또한, 분석의 타당성을 입증하기 위해 모의실험들을 제공한다.

Keywords

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