Buffer-aided successive opportunistic relaying with inter-relay interference cancellation
2013 (English)In: 2013 IEEE 24th International Symposium on Personal Indoor and Mobile Radio Communications (PIMRC), IEEE , 2013, 1316-1320 p.Conference paper (Refereed)
In this paper we consider a simple cooperative network consisting of a source, a destination and a cluster of decode-and-forward relays characterized by the half-duplex constraint. At each time-slot the source and (possibly) one of the relays transmit a packet to another relay and the destination, respectively. When the source and a relay transmit simultaneously, inter-relay interference is introduced at the receiving relay. In this work, with the aid of buffers at the relays, we mitigate the detrimental effect of inter-relay interference through either interference cancellation or mitigation. More specifically, we propose the min - power opportunistic relaying protocol that minimizes the total energy expenditure per time slot under an inter-relay interference cancellation scheme. The min - power relay-pair selection scheme, apart from minimizing the energy expenditure, also provides better throughput and lower outage probability than existing works in the literature. The performance of the proposed scheme is demonstrated via illustrative examples and simulations in terms of outage probability and average throughput.
Place, publisher, year, edition, pages
IEEE , 2013. 1316-1320 p.
Cooperative networks, Decode-and-forward relay, Energy expenditure, Half-duplex constraints, Interference cancellation, Interference cancellation scheme, Opportunistic relaying, Outage probability
IdentifiersURN: urn:nbn:se:kth:diva-136168DOI: 10.1109/PIMRC.2013.6666343ScopusID: 2-s2.0-84893218593ISBN: 978-146736235-1OAI: oai:DiVA.org:kth-136168DiVA: diva2:675500
2013 IEEE 24th Annual International Symposium on Personal, Indoor, and Mobile Radio Communications, PIMRC 2013; London; United Kingdom; 8 September 2013 through 11 September 2013
QC 201403252013-12-042013-12-042014-03-25Bibliographically approved