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dc.contributor.authorLv, Y.
dc.contributor.authorHe, Z.
dc.contributor.authorRong, Yue
dc.date.accessioned2022-07-17T08:28:40Z
dc.date.available2022-07-17T08:28:40Z
dc.date.issued2021
dc.identifier.citationLv, Y. and He, Z. and Rong, Y. 2021. Two-Way AF MIMO Multi-Relay System Design Using MMSE-DFE Techniques. IEEE Transactions on Wireless Communications. 20 (1): pp. 389-405.
dc.identifier.urihttp://hdl.handle.net/20.500.11937/88934
dc.identifier.doi10.1109/TWC.2020.3024898
dc.description.abstract

Targeting at a better design of the analogue network coding (ANC)-assisted two-way amplify-and-forward (AF) multiple-input multiple-output (MIMO) multi-relay communication systems, we bring in the nonlinear minimal mean-squared error (MMSE)-decision feedback equalization (DFE) receiving technique to jointly optimize the source precoding, relay amplifying, feed-forward and feedback matrices. Under the transmission power constraints at both source nodes and each relay node, the two-way sum mean-squared error (MSE) of the signal waveform estimation of all data streams is minimized. To solve the complicated nonconvex optimization problem with four groups of system parameters, this paper develops an iterative block coordinate descent (BCD) algorithm, which converges to at least a Nash point. On the basis of it, for mitigating the error propagation in MMSE-DFE receivers, a group of permutation matrix variables, determining the detection orders of all data streams, are further introduced in our system optimization. Moreover, in case there is no sufficiently precise channel state information (CSI), we also make an extension of the developed algorithms, yielding a robust design scheme, to handle the channel uncertainties. Numerical simulation results show that, compared with the existing linear MMSE receiving-based algorithm, our proposed nonlinear ones provide improved MSE and bit-error-rate (BER) performance as well as good robustness against the imperfect CSI, indicating a promising application prospect of this research.

dc.languageEnglish
dc.publisherIEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
dc.subjectScience & Technology
dc.subjectTechnology
dc.subjectEngineering, Electrical & Electronic
dc.subjectTelecommunications
dc.subjectEngineering
dc.subjectTwo-way
dc.subjectANC
dc.subjectMIMO relay
dc.subjectAF
dc.subjectmulti-relay
dc.subjectMMSE
dc.subjectDFE
dc.subjecterror propagation
dc.subjectimperfect CSI
dc.subjectrobust design
dc.titleTwo-Way AF MIMO Multi-Relay System Design Using MMSE-DFE Techniques
dc.typeJournal Article
dcterms.source.volume20
dcterms.source.number1
dcterms.source.startPage389
dcterms.source.endPage405
dcterms.source.issn1536-1276
dcterms.source.titleIEEE Transactions on Wireless Communications
dc.date.updated2022-07-17T08:28:29Z
curtin.departmentSchool of Elec Eng, Comp and Math Sci (EECMS)
curtin.accessStatusFulltext not available
curtin.facultyFaculty of Science and Engineering
curtin.contributor.orcidRong, Yue [0000-0002-5831-7479]
dcterms.source.eissn1558-2248
curtin.contributor.scopusauthoridRong, Yue [10044788600]


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