On the Outage Performance of Full-Duplex Selective Decode-and-Forward Relaying

Mohammad Galal Khafagy, Amr Ismail, Mohamed-Slim Alouini, Sonia Aissa

Research output: Contribution to journalArticlepeer-review

80 Scopus citations


We evaluate the outage performance in a three-terminal full-duplex relay channel that adopts a selective decode-and-forward protocol, taking relay self-interference into account. Previous work focused on coverage extension scenarios where direct source-destination transmissions are neglected or considered as interference. In this work, we account for the relay self-interference, and exploit the cooperative diversity offered by the independently fading source/relay message replicas that arrive at the destination. We present an approximate, yet accurate, closed-form expression for the end-to-end outage probability that captures their joint effect. With the derived expression in hand, we propose a relay transmit power optimization scheme that only requires the relay knowledge of channel statistics. Finally, we corroborate our analysis with simulations.
Original languageEnglish (US)
Pages (from-to)1180-1183
Number of pages4
JournalIEEE Communications Letters
Issue number6
StatePublished - May 1 2013

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KAUST Repository Item: Exported on 2020-10-01


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