Cooperative Partial Detection Using MIMO Relays

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dc.citation.firstpage5039en_US
dc.citation.issueNumber10en_US
dc.citation.journalTitleIEEE Transactions on Signal Processingen_US
dc.citation.lastpage5049en_US
dc.citation.volumeNumber59en_US
dc.contributor.authorAmiri, Kiarashen_US
dc.contributor.authorWu, Michaelen_US
dc.contributor.authorCavallaro, Joseph R.en_US
dc.contributor.authorLilleberg, Jormaen_US
dc.contributor.orgCenter for Multimedia Communicationen_US
dc.date.accessioned2012-06-01T15:10:42Zen_US
dc.date.available2012-06-01T15:10:42Zen_US
dc.date.issued2011-10-01en_US
dc.description.abstractUsing multiple-input multiple-output (MIMO) relays in cooperative communication improves the data rate and reliability of the communication. The MIMO transmission, however, requires considerable resources for the detection in the relay. In particular, if a full detect-and-forward (FDF) strategy is employed, the relay needs to spend considerable resources to perform the full MIMO detection. We propose a novel cooperative partial detection (CPD) strategy to partition the detection task between the relay and the destination. CPD modifies the tree traversal of the tree-based sphere detectors in a way where there is no need to visit all the levels of the tree and only a subset of the levels; thus, a subset of the transmitted streams are visited. The destination, then, combines the source signal and the partial relay signal to perform the final detection step and recover the transmitted vector. We study and compare the performance and complexity of FDF and CPD and show that by using the CPD approach, the relay can avoid the considerable overhead of MIMO detection while helping the source-destination link to improve its performance. More specifically, in the case of a 4X4 system, the relay complexity can be reduced by up to 80% of the conventional relaying scheme.en_US
dc.identifier.citationK. Amiri, M. Wu, J. R. Cavallaro and J. Lilleberg, "Cooperative Partial Detection Using MIMO Relays," <i>IEEE Transactions on Signal Processing,</i> vol. 59, no. 10, 2011.en_US
dc.identifier.doihttp://dx.doi.org/10.1109/TSP.2011.2157498en_US
dc.identifier.otherhttp://ieeexplore.ieee.org/stamp/stamp.jsp?arnumber=05772939en_US
dc.identifier.urihttps://hdl.handle.net/1911/64199en_US
dc.language.isoengen_US
dc.publisherIEEEen_US
dc.subjectCooperative systemen_US
dc.subjectMIMOen_US
dc.subjectRadio communication basebanden_US
dc.subjectReceiversen_US
dc.subjectWireless communicationen_US
dc.titleCooperative Partial Detection Using MIMO Relaysen_US
dc.typeJournal articleen_US
dc.type.dcmiTexten_US
dc.type.dcmiTexten_US
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