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A novel user selection algorithm for multiuser hybrid precoding in mmWave systems

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Original languageEnglish
Title of host publication2016 IEEE 27th Annual International Symposium on Personal, Indoor, and Mobile Radio Communications (PIMRC 2016)
Subtitle of host publicationProceedings of a meeting held 4-8 September 2016, Valencia, Spain
Publisher or commissioning bodyInstitute of Electrical and Electronics Engineers (IEEE)
Number of pages6
ISBN (Electronic)9781509032549
ISBN (Print)9781509032556
DateAccepted/In press - 4 Sep 2016
DateE-pub ahead of print - 22 Dec 2016
DatePublished (current) - Feb 2017

Publication series

NameProceedings of the Annual International Symposium on Personal, Indoor, and Mobile Radio Communications (PIMRC)
PublisherInstitute of Electrical and Electronics Engineers (IEEE)
ISSN (Print)2166-9589


In this paper, a novel user selection algorithm is proposed for downlink multiuser mmWave systems. The base station exploits hybrid precoding and communicates with multiple users simultaneously via spatial multiplexing. The system performance degrades when the spatially multiplexed users are angularly close and thus results in residual interference which is hard to be cancelled out by the hybrid precoding. To obtain an efficient and computably tractable solution, a novel formulation of the user selection problem and the associated algorithm is presented in this paper. The proposed algorithm enables an optimal spatial multiplexing at the base station, where a predefined number of users is selected and simultaneously served to maximise the averaged spectral efficiency per user. Simulation results show that implementing the multiuser hybrid precoding with the proposed user selection algorithm achieves a performance close to the interference-free limit

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    Accepted author manuscript, 565 KB, PDF document


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