{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,2,5]],"date-time":"2026-02-05T09:59:41Z","timestamp":1770285581982,"version":"3.49.0"},"reference-count":80,"publisher":"Institute of Electrical and Electronics Engineers (IEEE)","license":[{"start":{"date-parts":[[2021,1,1]],"date-time":"2021-01-01T00:00:00Z","timestamp":1609459200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/legalcode"}],"funder":[{"name":"Ministero dellIstruzione dellUniversit e della Ricerca","award":["Grant 2017SAKZ78 (PRIN Project MIRABILIS)"],"award-info":[{"award-number":["Grant 2017SAKZ78 (PRIN Project MIRABILIS)"]}]},{"name":"Ministero dellIstruzione dellUniversit e della Ricerca","award":["?Dipartimenti di Eccellenza (2018-2022)?"],"award-info":[{"award-number":["?Dipartimenti di Eccellenza (2018-2022)?"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["IEEE Access"],"published-print":{"date-parts":[[2021]]},"DOI":"10.1109\/access.2021.3070198","type":"journal-article","created":{"date-parts":[[2021,3,31]],"date-time":"2021-03-31T19:45:02Z","timestamp":1617219902000},"page":"53276-53291","source":"Crossref","is-referenced-by-count":37,"title":["Optimizing Antenna Arrays for Spatial Multiplexing: Towards 6G Systems"],"prefix":"10.1109","volume":"9","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-6615-6425","authenticated-orcid":false,"given":"Daniele","family":"Pinchera","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-9325-2933","authenticated-orcid":false,"given":"Marco Donald","family":"Migliore","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-6809-9663","authenticated-orcid":false,"given":"Fulvio","family":"Schettino","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"263","reference":[{"key":"ref73","doi-asserted-by":"publisher","DOI":"10.1109\/ACSSC.2017.8335488"},{"key":"ref72","doi-asserted-by":"publisher","DOI":"10.3390\/electronics7120365"},{"key":"ref71","doi-asserted-by":"publisher","DOI":"10.1109\/MCOM.2014.6829967"},{"key":"ref70","doi-asserted-by":"publisher","DOI":"10.1109\/ACCESS.2020.3028471"},{"key":"ref76","author":"balanis","year":"2016","journal-title":"Antenna Theory Analysis and Design"},{"key":"ref77","doi-asserted-by":"publisher","DOI":"10.1109\/MWC.2012.6393523"},{"key":"ref74","doi-asserted-by":"publisher","DOI":"10.1109\/GLOCOMW.2014.7063445"},{"key":"ref39","doi-asserted-by":"publisher","DOI":"10.1109\/TAP.2020.3016400"},{"key":"ref75","doi-asserted-by":"publisher","DOI":"10.1109\/GLOCOMW.2018.8644126"},{"key":"ref38","doi-asserted-by":"publisher","DOI":"10.1109\/LAWP.2020.3001565"},{"key":"ref78","doi-asserted-by":"publisher","DOI":"10.1109\/MCOM.2015.7060514"},{"key":"ref79","doi-asserted-by":"publisher","DOI":"10.1109\/TWC.2019.2945531"},{"key":"ref33","doi-asserted-by":"publisher","DOI":"10.1109\/APS.2013.6710848"},{"key":"ref32","doi-asserted-by":"publisher","DOI":"10.1109\/LAWP.2020.2977061"},{"key":"ref31","doi-asserted-by":"publisher","DOI":"10.1109\/LAWP.2020.2969496"},{"key":"ref30","doi-asserted-by":"publisher","DOI":"10.1109\/LAWP.2019.2914300"},{"key":"ref37","doi-asserted-by":"publisher","DOI":"10.1109\/TAP.2020.2968849"},{"key":"ref36","doi-asserted-by":"publisher","DOI":"10.1109\/TWC.2018.2803180"},{"key":"ref35","doi-asserted-by":"publisher","DOI":"10.1109\/TAP.2017.2712818"},{"key":"ref34","doi-asserted-by":"publisher","DOI":"10.1109\/TSP.2017.2786220"},{"key":"ref60","doi-asserted-by":"publisher","DOI":"10.1109\/TAP.2005.863108"},{"key":"ref62","doi-asserted-by":"publisher","DOI":"10.1109\/LAWP.2014.2300700"},{"key":"ref61","doi-asserted-by":"publisher","DOI":"10.1109\/VTCSpring.2013.6692762"},{"key":"ref63","doi-asserted-by":"publisher","DOI":"10.1109\/MAP.2017.2706668"},{"key":"ref28","doi-asserted-by":"publisher","DOI":"10.1109\/TAP.2017.2754441"},{"key":"ref64","doi-asserted-by":"publisher","DOI":"10.1109\/ACCESS.2020.3009850"},{"key":"ref27","doi-asserted-by":"publisher","DOI":"10.1109\/TCOMM.2015.2462350"},{"key":"ref65","first-page":"724","article-title":"System impacts of user scheduling with minimal angular separation constraints in radio resource management for 5G and beyond","author":"aslan","year":"2020","journal-title":"Proc IEEE Asia&#x2013;Pacific Microw Conf (APMC)"},{"key":"ref66","doi-asserted-by":"publisher","DOI":"10.1109\/TSP.2005.855401"},{"key":"ref29","doi-asserted-by":"publisher","DOI":"10.1109\/TAP.2018.2871881"},{"key":"ref67","doi-asserted-by":"publisher","DOI":"10.1109\/TVT.2005.851337"},{"key":"ref68","doi-asserted-by":"publisher","DOI":"10.1109\/JSAC.2005.862421"},{"key":"ref69","doi-asserted-by":"publisher","DOI":"10.1109\/COMST.2016.2618870"},{"key":"ref2","author":"jankiraman","year":"2004","journal-title":"Space-Time Codes and MIMO Systems"},{"key":"ref1","doi-asserted-by":"publisher","DOI":"10.1109\/53.665"},{"key":"ref20","doi-asserted-by":"publisher","DOI":"10.1016\/j.dsp.2019.06.007"},{"key":"ref22","doi-asserted-by":"publisher","DOI":"10.1109\/ACCESS.2020.3042002"},{"key":"ref21","doi-asserted-by":"publisher","DOI":"10.1109\/COMST.2019.2935810"},{"key":"ref24","doi-asserted-by":"publisher","DOI":"10.1049\/iet-map.2018.0005"},{"key":"ref23","doi-asserted-by":"publisher","DOI":"10.1109\/TAP.2017.2700891"},{"key":"ref26","doi-asserted-by":"publisher","DOI":"10.1109\/MAP.2019.2958515"},{"key":"ref25","doi-asserted-by":"publisher","DOI":"10.1109\/TAP.2018.2869200"},{"key":"ref50","doi-asserted-by":"publisher","DOI":"10.3390\/electronics9050739"},{"key":"ref51","doi-asserted-by":"publisher","DOI":"10.1109\/ACCESS.2014.2365991"},{"key":"ref59","doi-asserted-by":"publisher","DOI":"10.1017\/CBO9780511618420"},{"key":"ref58","author":"van loan","year":"1983","journal-title":"Matrix Computations"},{"key":"ref57","author":"riss","year":"1990","journal-title":"Functional Analysis"},{"key":"ref56","doi-asserted-by":"crossref","DOI":"10.1201\/9781420005929","author":"tsoulos","year":"2006","journal-title":"MIMO System Technology for Wireless Communications"},{"key":"ref55","doi-asserted-by":"publisher","DOI":"10.1109\/TAP.2018.2889158"},{"key":"ref54","doi-asserted-by":"publisher","DOI":"10.1109\/TAP.2015.2429742"},{"key":"ref53","doi-asserted-by":"publisher","DOI":"10.23919\/EuCAP48036.2020.9135263"},{"key":"ref52","doi-asserted-by":"publisher","DOI":"10.1109\/TAP.2019.2894271"},{"key":"ref10","doi-asserted-by":"publisher","DOI":"10.1109\/JCN.2013.000064"},{"key":"ref11","doi-asserted-by":"publisher","DOI":"10.1109\/JSTSP.2014.2317671"},{"key":"ref40","doi-asserted-by":"publisher","DOI":"10.1109\/TWC.2016.2555911"},{"key":"ref12","first-page":"76","article-title":"Aspects of favorable propagation in massive MIMO","author":"ngo","year":"2014","journal-title":"Proc 22nd Eur Signal Process Conf (EUSIPCO)"},{"key":"ref13","doi-asserted-by":"publisher","DOI":"10.1109\/MCOM.2014.6736761"},{"key":"ref14","doi-asserted-by":"publisher","DOI":"10.1109\/MCOM.2014.6894453"},{"key":"ref15","doi-asserted-by":"publisher","DOI":"10.1109\/TWC.2015.2400437"},{"key":"ref16","doi-asserted-by":"publisher","DOI":"10.1109\/MCOM.2016.7402270"},{"key":"ref17","doi-asserted-by":"publisher","DOI":"10.1109\/TWC.2017.2655515"},{"key":"ref18","doi-asserted-by":"publisher","DOI":"10.1109\/TWC.2017.2768423"},{"key":"ref19","doi-asserted-by":"publisher","DOI":"10.1109\/ACCESS.2019.2930208"},{"key":"ref80","doi-asserted-by":"publisher","DOI":"10.1109\/ACCESS.2020.3039423"},{"key":"ref4","doi-asserted-by":"publisher","DOI":"10.1109\/TIT.2003.813523"},{"key":"ref3","doi-asserted-by":"publisher","DOI":"10.1109\/97.991140"},{"key":"ref6","doi-asserted-by":"publisher","DOI":"10.1017\/CBO9781316799895"},{"key":"ref5","author":"clerckx","year":"2013","journal-title":"MIMO Wireless Networks Channels Techniques and Standards for Multi-Antenna Multi-User and Multi-Cell Systems"},{"key":"ref8","doi-asserted-by":"publisher","DOI":"10.1109\/TMTT.2018.2829702"},{"key":"ref7","doi-asserted-by":"publisher","DOI":"10.1109\/TAP.2017.2712819"},{"key":"ref49","doi-asserted-by":"publisher","DOI":"10.1109\/TCCN.2020.2992604"},{"key":"ref9","doi-asserted-by":"publisher","DOI":"10.1109\/JSAC.2013.130205"},{"key":"ref46","doi-asserted-by":"publisher","DOI":"10.1109\/ACCESS.2021.3053091"},{"key":"ref45","doi-asserted-by":"publisher","DOI":"10.1109\/TAP.2019.2906433"},{"key":"ref48","doi-asserted-by":"publisher","DOI":"10.1109\/JSAC.2020.3000814"},{"key":"ref47","doi-asserted-by":"publisher","DOI":"10.1109\/TAP.2008.929444"},{"key":"ref42","doi-asserted-by":"publisher","DOI":"10.1109\/JSYST.2020.3045909"},{"key":"ref41","doi-asserted-by":"publisher","DOI":"10.1109\/TSP.2019.2952052"},{"key":"ref44","doi-asserted-by":"publisher","DOI":"10.1109\/SPAWC.2019.8815590"},{"key":"ref43","doi-asserted-by":"publisher","DOI":"10.3390\/electronics6030057"}],"container-title":["IEEE Access"],"original-title":[],"link":[{"URL":"http:\/\/xplorestaging.ieee.org\/ielx7\/6287639\/9312710\/09391668.pdf?arnumber=9391668","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2022,1,26]],"date-time":"2022-01-26T17:06:45Z","timestamp":1643216805000},"score":1,"resource":{"primary":{"URL":"https:\/\/ieeexplore.ieee.org\/document\/9391668\/"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2021]]},"references-count":80,"URL":"https:\/\/doi.org\/10.1109\/access.2021.3070198","relation":{},"ISSN":["2169-3536"],"issn-type":[{"value":"2169-3536","type":"electronic"}],"subject":[],"published":{"date-parts":[[2021]]}}}