{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,2]],"date-time":"2026-04-02T09:13:00Z","timestamp":1775121180423,"version":"3.50.1"},"reference-count":47,"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":[{"DOI":"10.13039\/501100001871","name":"FCT - Funda\u00e7\u00e3o para a Ci\u00eancia e Tecnologia","doi-asserted-by":"publisher","award":["2020.05621.BD"],"award-info":[{"award-number":["2020.05621.BD"]}],"id":[{"id":"10.13039\/501100001871","id-type":"DOI","asserted-by":"publisher"}]},{"name":"Minist\u00e9rio para a Ci\u00eancia, Tecnologia e Ensino Superior (MCTES) through national funds"},{"name":"EU funds","award":["UIDB\/50008\/2020"],"award-info":[{"award-number":["UIDB\/50008\/2020"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["IEEE Access"],"published-print":{"date-parts":[[2021]]},"DOI":"10.1109\/access.2021.3106547","type":"journal-article","created":{"date-parts":[[2021,8,20]],"date-time":"2021-08-20T20:04:14Z","timestamp":1629489854000},"page":"118996-119009","source":"Crossref","is-referenced-by-count":6,"title":["A Generalized Space-Frequency Index Modulation Scheme for Downlink MIMO Transmissions With Improved Diversity"],"prefix":"10.1109","volume":"9","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-3829-9728","authenticated-orcid":false,"given":"Vasco R. J.","family":"Velez","sequence":"first","affiliation":[]},{"ORCID":"https:\/\/orcid.org\/0000-0002-4759-4817","authenticated-orcid":false,"given":"Joao Pedro C. B. B.","family":"Pavia","sequence":"additional","affiliation":[]},{"ORCID":"https:\/\/orcid.org\/0000-0003-3823-4470","authenticated-orcid":false,"given":"Nuno M. B.","family":"Souto","sequence":"additional","affiliation":[]},{"ORCID":"https:\/\/orcid.org\/0000-0001-7729-4033","authenticated-orcid":false,"given":"Pedro J. A.","family":"Sebastiao","sequence":"additional","affiliation":[]},{"ORCID":"https:\/\/orcid.org\/0000-0002-4246-3957","authenticated-orcid":false,"given":"Americo M. C.","family":"Correia","sequence":"additional","affiliation":[]}],"member":"263","reference":[{"key":"ref39","doi-asserted-by":"publisher","DOI":"10.1109\/TVT.2018.2820201"},{"key":"ref38","doi-asserted-by":"publisher","DOI":"10.1023\/A:1014466205024"},{"key":"ref33","doi-asserted-by":"publisher","DOI":"10.1109\/TSP.2018.2890063"},{"key":"ref32","doi-asserted-by":"publisher","DOI":"10.1109\/TWC.2020.3006565"},{"key":"ref31","doi-asserted-by":"publisher","DOI":"10.1109\/JSTSP.2019.2901131"},{"key":"ref30","doi-asserted-by":"publisher","DOI":"10.1109\/LWC.2019.2953270"},{"key":"ref37","doi-asserted-by":"publisher","DOI":"10.1109\/18.681321"},{"key":"ref36","doi-asserted-by":"publisher","DOI":"10.1109\/LCOMM.2014.2332340"},{"key":"ref35","doi-asserted-by":"publisher","DOI":"10.1109\/TVT.2015.2451095"},{"key":"ref34","doi-asserted-by":"publisher","DOI":"10.1109\/TVT.2020.3012044"},{"key":"ref10","doi-asserted-by":"publisher","DOI":"10.1109\/TWC.2015.2411651"},{"key":"ref40","doi-asserted-by":"publisher","DOI":"10.1109\/LCOMM.2015.2497255"},{"key":"ref11","doi-asserted-by":"publisher","DOI":"10.1109\/ACSSC.2010.5757786"},{"key":"ref12","doi-asserted-by":"publisher","DOI":"10.1109\/VETECS.2011.5956573"},{"key":"ref13","doi-asserted-by":"publisher","DOI":"10.1109\/TWC.2013.100213.130848"},{"key":"ref14","doi-asserted-by":"publisher","DOI":"10.1109\/TVT.2014.2344036"},{"key":"ref15","doi-asserted-by":"publisher","DOI":"10.1109\/TVT.2016.2565618"},{"key":"ref16","doi-asserted-by":"publisher","DOI":"10.1109\/ACCESS.2017.2763978"},{"key":"ref17","doi-asserted-by":"publisher","DOI":"10.1109\/PIMRC.2009.5449882"},{"key":"ref18","doi-asserted-by":"publisher","DOI":"10.1109\/TSP.2016.2551687"},{"key":"ref19","doi-asserted-by":"publisher","DOI":"10.1109\/ACCESS.2017.2761845"},{"key":"ref28","doi-asserted-by":"publisher","DOI":"10.1109\/TCOMM.2019.2909211"},{"key":"ref4","doi-asserted-by":"publisher","DOI":"10.1109\/JPROC.2020.3040589"},{"key":"ref27","doi-asserted-by":"publisher","DOI":"10.1109\/COMST.2018.2858567"},{"key":"ref3","doi-asserted-by":"publisher","DOI":"10.1109\/ACCESS.2017.2737528"},{"key":"ref6","doi-asserted-by":"publisher","DOI":"10.1109\/TWC.2012.030512.111635"},{"key":"ref29","doi-asserted-by":"publisher","DOI":"10.1109\/MWC.2019.1800568"},{"key":"ref5","doi-asserted-by":"publisher","DOI":"10.1109\/MWC.001.1900335"},{"key":"ref8","doi-asserted-by":"crossref","first-page":"56","DOI":"10.1109\/JPROC.2013.2287851","article-title":"Spatial modulation for generalized MIMO: Challenges, opportunities, and implementation","volume":"102","author":"di renzo","year":"2014","journal-title":"Proc IEEE"},{"key":"ref7","doi-asserted-by":"publisher","DOI":"10.1109\/TWC.2017.2702618"},{"key":"ref2","doi-asserted-by":"publisher","DOI":"10.1109\/MWC.2018.1600355"},{"key":"ref9","doi-asserted-by":"publisher","DOI":"10.1109\/TWC.2009.080910"},{"key":"ref1","doi-asserted-by":"publisher","DOI":"10.1109\/MCOM.2016.7509396"},{"key":"ref46","doi-asserted-by":"publisher","DOI":"10.1109\/TIT.2007.909108"},{"key":"ref20","doi-asserted-by":"publisher","DOI":"10.1109\/TSP.2013.2279771"},{"key":"ref45","doi-asserted-by":"publisher","DOI":"10.1109\/LCOMM.2014.2354392"},{"key":"ref22","doi-asserted-by":"publisher","DOI":"10.1109\/JSYST.2019.2918068"},{"key":"ref47","year":"2018"},{"key":"ref21","doi-asserted-by":"publisher","DOI":"10.1109\/TWC.2017.2760823"},{"key":"ref42","doi-asserted-by":"crossref","first-page":"51","DOI":"10.23919\/JCIN.2019.8917872","article-title":"Doubling phase shifters for efficient hybrid precoder design in millimeter-wave communication systems","volume":"4","author":"yu","year":"2019","journal-title":"J Commun Inf Netw"},{"key":"ref24","doi-asserted-by":"publisher","DOI":"10.1109\/LCOMM.2016.2635634"},{"key":"ref41","doi-asserted-by":"publisher","DOI":"10.1016\/j.phycom.2019.03.012"},{"key":"ref23","doi-asserted-by":"publisher","DOI":"10.1109\/ACCESS.2016.2601648"},{"key":"ref44","doi-asserted-by":"publisher","DOI":"10.1109\/LCOMM.2013.123113.132586"},{"key":"ref26","doi-asserted-by":"publisher","DOI":"10.1109\/TWC.2018.2860954"},{"key":"ref43","doi-asserted-by":"publisher","DOI":"10.1109\/TSP.2003.821107"},{"key":"ref25","doi-asserted-by":"publisher","DOI":"10.1109\/TCOMM.2017.2710312"}],"container-title":["IEEE Access"],"original-title":[],"link":[{"URL":"http:\/\/xplorestaging.ieee.org\/ielx7\/6287639\/9312710\/09519699.pdf?arnumber=9519699","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2023,1,7]],"date-time":"2023-01-07T19:45:10Z","timestamp":1673120710000},"score":1,"resource":{"primary":{"URL":"https:\/\/ieeexplore.ieee.org\/document\/9519699\/"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2021]]},"references-count":47,"URL":"https:\/\/doi.org\/10.1109\/access.2021.3106547","relation":{},"ISSN":["2169-3536"],"issn-type":[{"value":"2169-3536","type":"electronic"}],"subject":[],"published":{"date-parts":[[2021]]}}}