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Performance Analysis of Amplify-and-Forward Systems with Single Relay Selection in Correlated Environments

Sensors (Basel, Switzerland), 2016-09, Vol.16 (9), p.1472 [Peer Reviewed Journal]

2016 by the authors; licensee MDPI, Basel, Switzerland. 2016 ;ISSN: 1424-8220 ;EISSN: 1424-8220 ;DOI: 10.3390/s16091472 ;PMID: 27626426

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  • Title:
    Performance Analysis of Amplify-and-Forward Systems with Single Relay Selection in Correlated Environments
  • Author: Van Nguyen, Binh ; Kim, Kiseon
  • Subjects: amplify-and-forward ; cooperative sensor systems ; correlated environments ; diversity order ; outage probability
  • Is Part Of: Sensors (Basel, Switzerland), 2016-09, Vol.16 (9), p.1472
  • Description: In this paper, we consider amplify-and-forward (AnF) cooperative systems under correlated fading environments. We first present a brief overview of existing works on the effect of channel correlations on the system performance. We then focus on our main contribution which is analyzing the outage probability of a multi-AnF-relay system with the best relay selection (BRS) scheme under a condition that two channels of each relay, source-relay and relay-destination channels, are correlated. Using lower and upper bounds on the end-to-end received signal-to-noise ratio (SNR) at the destination, we derive corresponding upper and lower bounds on the system outage probability. We prove that the system can achieve a diversity order (DO) equal to the number of relays. In addition, and importantly, we show that the considered correlation form has a constructive effect on the system performance. In other words, the larger the correlation coefficient, the better system performance. Our analytic results are corroborated by extensive Monte-Carlo simulations.
  • Publisher: Switzerland: MDPI
  • Language: English
  • Identifier: ISSN: 1424-8220
    EISSN: 1424-8220
    DOI: 10.3390/s16091472
    PMID: 27626426
  • Source: GFMER Free Medical Journals
    PubMed Central
    ROAD: Directory of Open Access Scholarly Resources
    ProQuest Central
    DOAJ Directory of Open Access Journals
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