Blind cooperative diversity using distributed space-time coding in block fading channels

Kamel Tourki, Mohamed-Slim Alouini, Luc Deneire

Research output: Chapter in Book/Report/Conference proceedingConference contribution

13 Scopus citations


Mobile users with single antennas can still take advantage of spatial diversity through cooperative space-time encoded transmission. In this paper, we consider a scheme in which the relay chooses to cooperate only if the source-relay channel is of an acceptable quality and we evaluate the usefulness of relaying when the source acts blindly and ignores the decision of the relay whether it may cooperate or not. In our study, we consider a regenerative relay in which the decision to cooperate is based on a signal-to-noise ratio (SNR) threshold and consider the impact of the possible erroneously detected and transmitted data at the relay. We derive the end-to-end bit-error rate (BER) for binary phase-shift keying modulation and look at two power allocation strategies between the source and the relay in order to minimize the end-to-end BER at the destination for high SNR. Some selected performance results show that computer simulations based results coincide with our analytical results.
Original languageEnglish (US)
Title of host publicationIEEE Transactions on Communications
PublisherInstitute of Electrical and Electronics Engineers (IEEE)
Number of pages4595
StatePublished - 2008

Bibliographical note

KAUST Repository Item: Exported on 2021-08-19
Acknowledgements: This work was supported in part by the Qatar Foundation for Education, Sciences, and Community Development.


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