eprintid: 1468649 rev_number: 29 eprint_status: archive userid: 608 dir: disk0/01/46/86/49 datestamp: 2015-12-04 12:21:39 lastmod: 2021-09-20 00:31:49 status_changed: 2015-12-04 12:21:39 type: article metadata_visibility: show item_issues_count: 0 creators_name: Amadori, PV creators_name: Masouros, C title: Low RF-Complexity Millimeter-Wave Beamspace-MIMO Systems by Beam Selection ispublished: pub divisions: UCL divisions: B04 divisions: C05 divisions: F46 keywords: High dimensional MIMO, multiuser MIMO, beam selection, capacity maximization, SINR maximization, beamforming note: This work is licensed under a Creative Commons Attribution 3.0 License. For more information, see http://creativecommons.org/licenses/by/3.0/ abstract: Communications in millimeter-wave (mm-wave) spectrum (30-300 GHz) have experienced a continuous increase in relevance for short-range, high-capacity wireless links, because of the wider bandwidths they are able to provide. In this work, we introduce a new mm-wave frequency transmission scheme that exploits a combination of the concepts of beamspace multi-input multi-output (B-MIMO) communications and beam selection to provide near-optimal performances with a low hardware-complexity transceiver. While large-scale MIMO approaches in mm-wave are affected by high dimensional signal space that increases considerably both complexity and costs of the system, the proposed scheme is able to achieve near-optimal performances with a reduced radio-frequency (RF) complexity thanks to beam selection. We evaluate the advantages of the proposed scheme via capacity computations, comparisons of numbers of RF chains required and by studying the trade-off between spectral and power efficiency. Our analytical and simulation results show that the proposed scheme is capable of offering a significant reduction in RF complexity with a realistic low-cost approach, for a given performance. In particular, we show that the proposed beam selection algorithms achieve higher power efficiencies than a full system where all beams are utilized. date: 2015-06-01 date_type: published official_url: http://dx.doi.org/10.1109/TCOMM.2015.2431266 vfaculties: VENG oa_status: green full_text_type: pub language: eng primo: open primo_central: open_green verified: verified_manual elements_source: Manually entered elements_id: 1031711 doi: 10.1109/TCOMM.2015.2431266 lyricists_name: Amadori, Pierluigi lyricists_name: Masouros, Christos lyricists_id: PVAMA53 lyricists_id: CMASO14 actors_name: Erlandsson, Kjell actors_name: Barczynska, Patrycja actors_id: KERLA65 actors_id: PBARC91 actors_role: owner actors_role: impersonator full_text_status: public publication: IEEE TRANSACTIONS ON COMMUNICATIONS volume: 63 number: 6 pagerange: 2212-2223 issn: 0090-6778 citation: Amadori, PV; Masouros, C; (2015) Low RF-Complexity Millimeter-Wave Beamspace-MIMO Systems by Beam Selection. IEEE TRANSACTIONS ON COMMUNICATIONS , 63 (6) pp. 2212-2223. 10.1109/TCOMM.2015.2431266 <https://doi.org/10.1109/TCOMM.2015.2431266>. Green open access document_url: https://discovery-pp.ucl.ac.uk/id/eprint/1468649/1/07104120.pdf