Please use this identifier to cite or link to this item: http://hdl.handle.net/11144/3650
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dc.contributor.authorDinis, Rui-
dc.contributor.authorMagueta, R. L.-
dc.contributor.authorMendes, V.-
dc.contributor.authorCastanheira, D.-
dc.contributor.authorSilva, A.-
dc.contributor.authorGameiro, A.-
dc.date.accessioned2018-04-12T12:13:10Z-
dc.date.available2018-04-12T12:13:10Z-
dc.date.issued2017-
dc.identifier.issn1530-8669-
dc.identifier.urihttp://hdl.handle.net/11144/3650-
dc.description.abstractMillimeter waves and massive MIMO are a promising combination to achieve the multi-Gb/s required by future 5G wireless systems. However, fully digital architectures are not feasible due to hardware limitations, which means that there is a need to design signal processing techniques for hybrid analog-digital architectures. In this manuscript, we propose a hybrid iterative block multiuser equalizer for subconnected millimeter wave massive MIMO systems. The low complexity user-terminals employ pure-analog random precoders, each with a single RF chain. For the base station, a subconnected hybrid analog-digital equalizer is designed to remove multiuser interference. The hybrid equalizer is optimized using the average bit-error-rate as a metric. Due to the coupling between the RF chains in the optimization problem, the computation of the optimal solutions is too complex. To address this problem, we compute the analog part of the equalizer sequentially over the RF chains using a dictionary built from the array response vectors. The proposed subconnected hybrid iterative multiuser equalizer is compared with a recently proposed fully connected approach. The results show that the performance of the proposed scheme is close to the fully connected hybrid approach counterpart after just a few iterations.por
dc.language.isoengpor
dc.publisherHindawipor
dc.rightsopenAccesspor
dc.subjectMIMOpor
dc.subject5Gpor
dc.subjectHybridpor
dc.titleIterative Multiuser Equalization for Subconnected Hybrid mmWave Massive MIMO Architecturepor
dc.typearticlepor
degois.publication.firstPage1por
degois.publication.lastPage13por
degois.publication.titleWireless Communications & Mobile Computingpor
degois.publication.volume1por
dc.peerreviewedyespor
dc.relation.publisherversionhttps://www.it.pt/Publications/PaperJournal/26608por
dc.identifier.doi10.1155/2017/9171068por
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