Virtual full-duplex buffer-aided relaying - Relay selection and beamforming
2013 (English)In: 2013 IEEE 24th International Symposium on Personal Indoor and Mobile Radio Communications (PIMRC), IEEE , 2013, 1748-1752 p.Conference paper (Refereed)
In this paper, we study virtual full-duplex (FD) buffer-aided relaying to recover the multiplexing loss of half-duplex (HD) relaying in a network with multiple buffer-aided relays, each of which has multiple antennas, through opportunistic relay selection and beamforming. The main idea of virtual FD buffer-aided relaying is that a source and a relay simultaneously transmit their own information to another relay and a destination, respectively. In this network, inter-relay interference (IRI) is a crucial problem which has to be resolved like self-interference in the FD relaying. In contrast to previous work that neglected the IRI, we propose two buffer-aided relay selection and beam-forming schemes taking the IRI into consideration. Numerical results show that our proposed relay selection scheme with zero-forcing beamforming (ZFB)-based IRI cancellation approaches the average end-to-end capacity of IRI-free upper bound as the numbers of relays and antennas increase.
Place, publisher, year, edition, pages
IEEE , 2013. 1748-1752 p.
Full-duplex, buffer-aided relaying, inter-relay interference, relay selection, beamforming
IdentifiersURN: urn:nbn:se:kth:diva-136424DOI: 10.1109/PIMRC.2013.6666425ScopusID: 2-s2.0-84893325797ISBN: 978-1-4673-6235-1OAI: oai:DiVA.org:kth-136424DiVA: diva2:676057
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
ProjectsEU FP7 METIS
QC 201313182013-12-052013-12-052014-04-09Bibliographically approved