Paper Info
Title
Virtual full-duplex buffer-aided relaying - Relay selection and beamforming.
Abstract
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.
Year
DOI
Venue
2013
10.1109/PIMRC.2013.6666425
PIMRC
Keywords
Field
DocType
telecommunications,multiplexing
Relay channel,Beamforming,Upper and lower bounds,Computer science,Computer network,Interference (wave propagation),Multiplexing,Relay,Duplex (telecommunications)
Conference
ISSN
Citations 
PageRank 
2166-9570
12
0.54
References 
Authors
9
2
Name
Order
Citations
PageRank
Su Min Kim112919.92
Mats Bengtsson21493110.70