Error-rate performance analysis of incremental decode-and-forward opportunistic relaying

Kamel Tourki, Hongchuan Yang, Mohamed-Slim Alouini

Research output: Contribution to journalArticlepeer-review

32 Scopus citations


In this paper, we investigate an incremental opportunistic relaying scheme where the selected relay chooses to cooperate only if the source-destination channel is of an unacceptable quality. In our study, we consider regenerative relaying in which the decision to cooperate is based on a signal-to-noise ratio (SNR) threshold and takes into account the effect of the possible erroneously detected and transmitted data at the best relay. We derive a closed-form expression for the end-to-end bit-error rate (BER) of binary phase-shift keying (BPSK) modulation based on the exact probability density function (PDF) of each hop. Furthermore, we evaluate the asymptotic error performance and the diversity order is deduced. We show that performance simulation results coincide with our analytical results. © 2011 IEEE.
Original languageEnglish (US)
Pages (from-to)1519-1524
Number of pages6
JournalIEEE Transactions on Communications
Issue number6
StatePublished - Jun 2011

Bibliographical note

KAUST Repository Item: Exported on 2020-10-01
Acknowledgements: This work was supported by the Qatar National Research Fund (a member of the Qatar Foundation).

ASJC Scopus subject areas

  • Electrical and Electronic Engineering


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