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dc.contributor.authorRong, Yue
dc.date.accessioned2017-01-30T14:46:35Z
dc.date.available2017-01-30T14:46:35Z
dc.date.created2010-12-21T20:02:48Z
dc.date.issued2011
dc.identifier.citationRong, Yue. 2011. Multihop Nonregenerative MIMO Relays - QoS Considerations. IEEE Transactions on Signal Processing. 59 (1): pp. 290-303.
dc.identifier.urihttp://hdl.handle.net/20.500.11937/40901
dc.identifier.doi10.1109/TSP.2010.2087328
dc.description.abstract

For nonregenerative multihop multiple-input multiple-output (MIMO) relay communication systems, the optimal source precoding matrix and the optimal relay amplifying matrices have been recently established for a broad class of objective functions subjecting to the transmission power constraint at each node. However, existing works do not consider any quality-of-service (QoS) constraints, which are important in practical communication systems. In this paper, we derive the optimal source and relay matrices of a multihop MIMO relay system that guarantee the predetermined QoS criteria be attained with the minimal total transmission power. In particular, we consider two types of receivers at the destination node: the linear minimal mean-squared error (MMSE) receiver and the nonlinear decision feedback equalizer (DFE) based on the MMSE criterion. We show that for both types of receivers, the solution to the original optimization problem can be upper-bounded by using a successive geometric programming (GP) approach and lower-bounded by utilizing a dual decomposition technique. Simulation results show that both bounds are tight, and to obtain the same QoS, the MIMO relay system using the nonlinear MMSE-DFE receiver requires substantially less total transmission power than the linear MMSE receiver-based system.

dc.publisherIEEE Signal Processing Society
dc.subjectQoS
dc.subjectMIMO relay
dc.subjectmajorization
dc.subjectlinear non-regenerative relay
dc.subjectmulti-hop relay
dc.subjectMMSE
dc.titleMultihop Nonregenerative MIMO Relays - QoS Considerations
dc.typeJournal Article
dcterms.source.volume59
dcterms.source.startPage290
dcterms.source.endPage303
dcterms.source.issn1053-587X
dcterms.source.titleIEEE Transactions on Signal Processing
curtin.note

© 2011 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.

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


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