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dc.contributor.authorChiong, Choo Wee Raymond
dc.contributor.authorRong, Yue
dc.contributor.authorXiang, Y.
dc.contributor.editorStephen Hanly
dc.identifier.citationChiong, C.W.R. and Rong, Y. and Xiang, Y. 2014. Channel Estimation for Frequency-Selective Two-Way MIMO Relay Systems, in S. Hanly (ed), The International Symposium on Information Theory and Its Applications, Oct 26 2014, pp. 630-634. Melbourne, Australia: IEEE.

In this paper, we investigate the channel estimation problem for two-way multiple-input multiple-output (MIMO) relay communication systems in frequency-selective fading environments. We propose a superimposed channel training algorithm to estimate the individual channel state information(CSI) of the first-hop and second-hop links for two-way MIMO relay systems with frequency-selective fading channels. In this algorithm, a relay training sequence is superimposed on the received signals at the relay node to assist the estimation of the second-hop channel matrices. The optimal structure of the source and relay training sequences is derived to minimize the mean-squared error (MSE) of channel estimation. We also derive the optimal power allocation between the source and relay trainingsequences. Numerical examples are shown to demonstrate the performance of the proposed algorithm.

dc.subjectsuperimposed training
dc.subjectChannel estimation
dc.subjectMIMO two-way relay
dc.subjectfrequency-selective fading
dc.titleChannel Estimation for Frequency-Selective Two-Way MIMO Relay Systems
dc.typeConference Paper
dcterms.source.titleProceedings of the International Symposium on Information Theory and Its Applications
dcterms.source.seriesProceedings of the International Symposium on Information Theory and Its Applications
dcterms.source.conferenceThe International Symposium on Information Theory and Its Applications
dcterms.source.conference-start-dateOct 26 2014
dcterms.source.conferencelocationMelbourne, Australia
dcterms.source.placePiscataway, NJ, USA

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curtin.departmentDepartment of Electrical and Computer Engineering
curtin.accessStatusOpen access

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