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A novel user pairing scheme for functional decode-and-forward multi-way relay network

Islam, Shama; Sadeghi, Parastoo; Durrani, Salman

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In this paper, we consider a functional decode and forward (FDF) multi-way relay network (MWRN) where a common user facilitates each user in the network to obtain messages from all other users. We propose a novel user pairing scheme, which is based on the principle of selecting a common user with the best average channel gain. This allows the user with the best channel conditions to contribute to the overall system performance. Assuming lattice code based transmissions, we derive upper bounds...[Show more]

dc.contributor.authorIslam, Shama
dc.contributor.authorSadeghi, Parastoo
dc.contributor.authorDurrani, Salman
dc.date.accessioned2016-02-24T22:41:27Z
dc.date.created2015
dc.identifier.issn1874-4907
dc.identifier.urihttp://hdl.handle.net/1885/98693
dc.description.abstractIn this paper, we consider a functional decode and forward (FDF) multi-way relay network (MWRN) where a common user facilitates each user in the network to obtain messages from all other users. We propose a novel user pairing scheme, which is based on the principle of selecting a common user with the best average channel gain. This allows the user with the best channel conditions to contribute to the overall system performance. Assuming lattice code based transmissions, we derive upper bounds on the average common rate and the average sum rate with the proposed pairing scheme. Considering M-ary quadrature amplitude modulation with square constellation as a special case of lattice code transmission, we derive asymptotic average symbol error rate (SER) of the MWRN. We show that in terms of the achievable rates, the proposed pairing scheme outperforms the existing pairing schemes under a wide range of channel scenarios. The proposed pairing scheme also has lower average SER compared to existing schemes. We show that overall, the MWRN performance with the proposed pairing scheme is more robust, compared to existing pairing schemes, especially under worst case channel conditions when majority of users have poor average channel gains.
dc.format.mimetypeapplication/pdf
dc.language.isoen_AU
dc.publisherElsevier BV
dc.sourcePhysical Communication
dc.titleA novel user pairing scheme for functional decode-and-forward multi-way relay network
dc.typeJournal article
local.description.notesImported from ARIES
local.identifier.citationvolume17
local.identifier.absfor080309 - Software Engineering
local.identifier.absfor090600 - ELECTRICAL AND ELECTRONIC ENGINEERING
local.identifier.absfor100500 - COMMUNICATIONS TECHNOLOGIES
local.identifier.ariespublicationU3488905xPUB6822
local.type.statusPublished Version
local.contributor.affiliationIslam, Shama, College of Engineering and Computer Science, ANU
local.contributor.affiliationDurrani, Salman, College of Engineering and Computer Science, ANU
local.contributor.affiliationSadeghi, Parastoo, College of Engineering and Computer Science, ANU
local.description.embargo2037-12-31
local.bibliographicCitation.startpage128
local.bibliographicCitation.lastpage148
local.identifier.doi10.1016/j.phycom.2015.08.009
dc.date.updated2016-02-24T10:12:03Z
local.identifier.scopusID2-s2.0-84947865932
CollectionsANU Research Publications

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