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MIMO Y channel with imperfect CSI: Impact of training and feedback overhead

Zebardast, Hamideh; Zhou, Xiangyun; Maham, Behrouz

Description

Signal space alignment with network coding (SSA-NC) is a cooperative transmission strategy that, under some conditions such as full channel state information (CSI), provides maximum degrees of freedom (DoF) in two-way relay networks. However, obtaining full CSI for SSA-NC requires a significant amount of training and feedback overhead. This paper focuses on the multiple-input multiple-output (MIMO) Y channel and explicitly considers the required training and feedback at the users and relay. We...[Show more]

dc.contributor.authorZebardast, Hamideh
dc.contributor.authorZhou, Xiangyun
dc.contributor.authorMaham, Behrouz
dc.coverage.spatialSurabaya, Indonesia
dc.date.accessioned2021-08-09T23:56:26Z
dc.date.createdDecember 8-10 2016
dc.identifier.isbn9781509054466
dc.identifier.urihttp://hdl.handle.net/1885/243305
dc.description.abstractSignal space alignment with network coding (SSA-NC) is a cooperative transmission strategy that, under some conditions such as full channel state information (CSI), provides maximum degrees of freedom (DoF) in two-way relay networks. However, obtaining full CSI for SSA-NC requires a significant amount of training and feedback overhead. This paper focuses on the multiple-input multiple-output (MIMO) Y channel and explicitly considers the required training and feedback at the users and relay. We derive the optimum signaling overhead of this channel to maximize the effective sum-rate of the SSA-NC scheme. We further investigate an important question: under what conditions does the SSA-NC scheme have a better sum-rate performance compared to other popular schemes with lower complexity such as multi-user MIMO (MU-MIMO) and time division multiple access (TDMA)? Since different schemes require different amounts of training/feedback overhead, our result demonstrates how the channel coherence interval plays an important role in their relative performance. Specifically, the SSA-NC scheme outperforms the other schemes only when the coherence interval is sufficiently large. This result highlights the importance of properly taking the training and feedback overhead and channel coherence interval into account when designing the communication scheme for the MIMO Y channel
dc.format.mimetypeapplication/pdf
dc.language.isoen_AU
dc.publisherInstitute of Electrical and Electronics Engineers (IEEE Inc)
dc.relation.ispartofseries5th IEEE International Conference on Communication, Network, and Satellite, COMNETSAT 2016
dc.rights© 2016 IEEE
dc.source2016 IEEE International Conference on Communication, Network, and Satellite, COMNETSAT 2016 - Proceedings
dc.subjectMIMO Y channel
dc.subjectsignal space alignment
dc.subjectwireless network coding
dc.subjectchannel estimation
dc.titleMIMO Y channel with imperfect CSI: Impact of training and feedback overhead
dc.typeConference paper
local.description.notesImported from ARIES
local.description.refereedYes
dc.date.issued2017
local.identifier.absfor090609 - Signal Processing
local.identifier.absfor100510 - Wireless Communications
local.identifier.ariespublicationa383154xPUB6096
local.publisher.urlhttps://www.ieee.org/
local.type.statusPublished Version
local.contributor.affiliationZebardast, Hamideh, University of Tehran
local.contributor.affiliationZhou, Xiangyun (Sean), College of Engineering and Computer Science, ANU
local.contributor.affiliationMaham, Behrouz, Nazarbayev University
local.description.embargo2099-12-31
local.bibliographicCitation.startpage7
local.bibliographicCitation.lastpage13
local.identifier.doi10.1109/COMNETSAT.2016.7907407
local.identifier.absseo890103 - Mobile Data Networks and Services
local.identifier.absseo970109 - Expanding Knowledge in Engineering
dc.date.updated2020-11-23T10:49:54Z
local.identifier.scopusID2-s2.0-85019236145
CollectionsANU Research Publications

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