Li, Q., Yu, M., Pandharipande, A. et al. (3 more authors) (2016) Performance of virtual full-duplex relaying on cooperative multi-path relay channels. IEEE Transactions on Wireless Communications, 15 (5). pp. 3628-3642. ISSN 1536-1276
Abstract
We consider a cooperative multi-path relay channel (MPRC) where multiple half-duplex relays assist in the packet transmissions from a source to its destination. A virtual full-duplex (FD) relaying scheme is proposed that allows the source to transmit a new packet simultaneously with the selected best relay, with the rest of the relays attempting to decode this new packet. Thus, a new source packet can be served in each time slot, as in FD relay systems. Taking into account the effect of inter-relay interference (IRI) that is caused by simultaneous relay and source transmissions, a Markov chain analytical model is used to characterize the decoding performance at the relays, based on which the overall outage probability of MPRC is obtained in closed-form expressions. The asymptotic performance analysis reveals that in low rate scenarios, a close-to-full diversity order is achieved by the proposed scheme while substantially improving the spectrum efficiency. In high rate scenarios, the decoding performance of relays is limited by IRI and the system outage performance experiences an error floor. Simulation results demonstrate the performance gains of the proposed scheme by comparisons with existing half-duplex and FD relay systems in the literature.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2016 IEEE. This is an author produced version of a paper subsequently published in IEEE Transactions on Wireless Communications. Uploaded in accordance with the publisher's self-archiving policy. |
Keywords: | Multi-path relay channels; half-duplex and fullduplex; opportunistic relaying; Markov chain; diversity |
Dates: |
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Institution: | The University of Sheffield |
Academic Units: | The University of Sheffield > Faculty of Engineering (Sheffield) > Department of Electronic and Electrical Engineering (Sheffield) |
Funding Information: | Funder Grant number EUROPEAN COMMISSION - FP6/FP7 WINDOW - 318992 |
Depositing User: | Symplectic Sheffield |
Date Deposited: | 06 Jun 2016 10:24 |
Last Modified: | 07 Jun 2016 12:17 |
Published Version: | http://dx.doi.org/10.1109/TWC.2016.2523995 |
Status: | Published |
Publisher: | Institute of Electrical and Electronics Engineers (IEEE) |
Refereed: | Yes |
Identification Number: | 10.1109/TWC.2016.2523995 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:100451 |