{"id":"https://openalex.org/W2291605167","doi":"https://doi.org/10.1109/glocom.2014.7417496","title":"Space-Time Block Codes over the Stiefel Manifold","display_name":"Space-Time Block Codes over the Stiefel Manifold","publication_year":2014,"publication_date":"2014-12-01","ids":{"openalex":"https://openalex.org/W2291605167","doi":"https://doi.org/10.1109/glocom.2014.7417496","mag":"2291605167"},"language":"en","primary_location":{"id":"doi:10.1109/glocom.2014.7417496","is_oa":false,"landing_page_url":"https://doi.org/10.1109/glocom.2014.7417496","pdf_url":null,"source":{"id":"https://openalex.org/S4363607712","display_name":"2015 IEEE Global Communications Conference (GLOBECOM)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"host_organization_lineage_names":[],"type":"conference"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2015 IEEE Global Communications Conference (GLOBECOM)","raw_type":"proceedings-article"},"type":"article","indexed_in":["crossref"],"open_access":{"is_oa":false,"oa_status":"closed","oa_url":null,"any_repository_has_fulltext":false},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5082071334","display_name":"Mohammad T. Hussien","orcid":null},"institutions":[{"id":"https://openalex.org/I84524832","display_name":"Alexandria University","ror":"https://ror.org/00mzz1w90","country_code":"EG","type":"education","lineage":["https://openalex.org/I84524832"]}],"countries":["EG"],"is_corresponding":false,"raw_author_name":"Mohammad T. Hussien","raw_affiliation_strings":["Department of Electrical Engineering, Alexandria University, Egypt"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Electrical Engineering, Alexandria University, Egypt","institution_ids":["https://openalex.org/I84524832"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5055400388","display_name":"Karim G. Seddik","orcid":"https://orcid.org/0000-0002-2279-592X"},"institutions":[{"id":"https://openalex.org/I80693520","display_name":"American University in Cairo","ror":"https://ror.org/0176yqn58","country_code":"EG","type":"education","lineage":["https://openalex.org/I80693520"]}],"countries":["EG"],"is_corresponding":false,"raw_author_name":"Karim G. Seddik","raw_affiliation_strings":["Electronics Engineering Department, American University in Cairo, New Cairo, Egypt"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Electronics Engineering Department, American University in Cairo, New Cairo, Egypt","institution_ids":["https://openalex.org/I80693520"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5055844984","display_name":"Ramy H. Gohary","orcid":"https://orcid.org/0000-0002-0031-0880"},"institutions":[{"id":"https://openalex.org/I67031392","display_name":"Carleton University","ror":"https://ror.org/02qtvee93","country_code":"CA","type":"education","lineage":["https://openalex.org/I67031392"]}],"countries":["CA"],"is_corresponding":false,"raw_author_name":"Ramy H. Gohary","raw_affiliation_strings":["Department of Systems and Computer Engineering, Carleton University, Ottawa, Canada"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Systems and Computer Engineering, Carleton University, Ottawa, Canada","institution_ids":["https://openalex.org/I67031392"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5021807596","display_name":"Mohammad Shaqfeh","orcid":"https://orcid.org/0000-0002-9330-5924"},"institutions":[{"id":"https://openalex.org/I58152225","display_name":"Texas A&M University at Qatar","ror":"https://ror.org/03vb4dm14","country_code":"QA","type":"education","lineage":["https://openalex.org/I58152225","https://openalex.org/I91045830"]}],"countries":["QA"],"is_corresponding":false,"raw_author_name":"Mohammad Shaqfeh","raw_affiliation_strings":["Department of Electrical Engineering, Texas A&M University in Qatar, Doha, Qatar"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Electrical Engineering, Texas A&M University in Qatar, Doha, Qatar","institution_ids":["https://openalex.org/I58152225"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5073106382","display_name":"Hussein Alnuweiri","orcid":"https://orcid.org/0000-0003-3092-2586"},"institutions":[{"id":"https://openalex.org/I58152225","display_name":"Texas A&M University at Qatar","ror":"https://ror.org/03vb4dm14","country_code":"QA","type":"education","lineage":["https://openalex.org/I58152225","https://openalex.org/I91045830"]}],"countries":["QA"],"is_corresponding":false,"raw_author_name":"Hussein Alnuweiri","raw_affiliation_strings":["Department of Electrical Engineering, Texas A&M University in Qatar, Doha, Qatar"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Electrical Engineering, Texas A&M University in Qatar, Doha, Qatar","institution_ids":["https://openalex.org/I58152225"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5035446029","display_name":"Halim Yan\u0131k\u00f6mero\u011flu","orcid":"https://orcid.org/0000-0003-4776-9354"},"institutions":[{"id":"https://openalex.org/I67031392","display_name":"Carleton University","ror":"https://ror.org/02qtvee93","country_code":"CA","type":"education","lineage":["https://openalex.org/I67031392"]}],"countries":["CA"],"is_corresponding":false,"raw_author_name":"Halim Yanikomeroglu","raw_affiliation_strings":["Department of Systems and Computer Engineering, Carleton University, Ottawa, Canada"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Systems and Computer Engineering, Carleton University, Ottawa, Canada","institution_ids":["https://openalex.org/I67031392"]}]}],"institutions":[],"countries_distinct_count":3,"institutions_distinct_count":6,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":0.0,"has_fulltext":false,"cited_by_count":0,"citation_normalized_percentile":{"value":0.20467467,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":null,"biblio":{"volume":null,"issue":null,"first_page":"1","last_page":"7"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10125","display_name":"Advanced Wireless Communication Techniques","score":1.0,"subfield":{"id":"https://openalex.org/subfields/2208","display_name":"Electrical and Electronic Engineering"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},"topics":[{"id":"https://openalex.org/T10125","display_name":"Advanced Wireless Communication Techniques","score":1.0,"subfield":{"id":"https://openalex.org/subfields/2208","display_name":"Electrical and Electronic Engineering"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T11321","display_name":"Error Correcting Code Techniques","score":0.9994999766349792,"subfield":{"id":"https://openalex.org/subfields/1705","display_name":"Computer Networks and Communications"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10575","display_name":"Wireless Communication Networks Research","score":0.9994000196456909,"subfield":{"id":"https://openalex.org/subfields/1705","display_name":"Computer Networks and Communications"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/block-code","display_name":"Block code","score":0.8246619701385498},{"id":"https://openalex.org/keywords/phase-shift-keying","display_name":"Phase-shift keying","score":0.6573781967163086},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.5258301496505737},{"id":"https://openalex.org/keywords/unitary-state","display_name":"Unitary state","score":0.5227779746055603},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.4738517105579376},{"id":"https://openalex.org/keywords/group-code","display_name":"Group code","score":0.45420002937316895},{"id":"https://openalex.org/keywords/quadrature-amplitude-modulation","display_name":"Quadrature amplitude modulation","score":0.45023876428604126},{"id":"https://openalex.org/keywords/topology","display_name":"Topology (electrical circuits)","score":0.4272158443927765},{"id":"https://openalex.org/keywords/linear-code","display_name":"Linear code","score":0.42210423946380615},{"id":"https://openalex.org/keywords/code","display_name":"Code (set theory)","score":0.41480138897895813},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.3818780183792114},{"id":"https://openalex.org/keywords/theoretical-computer-science","display_name":"Theoretical computer science","score":0.3351268768310547},{"id":"https://openalex.org/keywords/decoding-methods","display_name":"Decoding methods","score":0.2614229917526245},{"id":"https://openalex.org/keywords/bit-error-rate","display_name":"Bit error rate","score":0.1603373885154724},{"id":"https://openalex.org/keywords/combinatorics","display_name":"Combinatorics","score":0.12656444311141968}],"concepts":[{"id":"https://openalex.org/C157125643","wikidata":"https://www.wikidata.org/wiki/Q884707","display_name":"Block code","level":3,"score":0.8246619701385498},{"id":"https://openalex.org/C186378180","wikidata":"https://www.wikidata.org/wiki/Q4874866","display_name":"Phase-shift keying","level":4,"score":0.6573781967163086},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.5258301496505737},{"id":"https://openalex.org/C67820243","wikidata":"https://www.wikidata.org/wiki/Q179164","display_name":"Unitary state","level":2,"score":0.5227779746055603},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.4738517105579376},{"id":"https://openalex.org/C3427991","wikidata":"https://www.wikidata.org/wiki/Q651426","display_name":"Group code","level":5,"score":0.45420002937316895},{"id":"https://openalex.org/C32409245","wikidata":"https://www.wikidata.org/wiki/Q749753","display_name":"Quadrature amplitude modulation","level":4,"score":0.45023876428604126},{"id":"https://openalex.org/C184720557","wikidata":"https://www.wikidata.org/wiki/Q7825049","display_name":"Topology (electrical circuits)","level":2,"score":0.4272158443927765},{"id":"https://openalex.org/C2400350","wikidata":"https://www.wikidata.org/wiki/Q1752667","display_name":"Linear code","level":4,"score":0.42210423946380615},{"id":"https://openalex.org/C2776760102","wikidata":"https://www.wikidata.org/wiki/Q5139990","display_name":"Code (set theory)","level":3,"score":0.41480138897895813},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.3818780183792114},{"id":"https://openalex.org/C80444323","wikidata":"https://www.wikidata.org/wiki/Q2878974","display_name":"Theoretical computer science","level":1,"score":0.3351268768310547},{"id":"https://openalex.org/C57273362","wikidata":"https://www.wikidata.org/wiki/Q576722","display_name":"Decoding methods","level":2,"score":0.2614229917526245},{"id":"https://openalex.org/C56296756","wikidata":"https://www.wikidata.org/wiki/Q840922","display_name":"Bit error rate","level":3,"score":0.1603373885154724},{"id":"https://openalex.org/C114614502","wikidata":"https://www.wikidata.org/wiki/Q76592","display_name":"Combinatorics","level":1,"score":0.12656444311141968},{"id":"https://openalex.org/C199539241","wikidata":"https://www.wikidata.org/wiki/Q7748","display_name":"Law","level":1,"score":0.0},{"id":"https://openalex.org/C199360897","wikidata":"https://www.wikidata.org/wiki/Q9143","display_name":"Programming language","level":1,"score":0.0},{"id":"https://openalex.org/C177264268","wikidata":"https://www.wikidata.org/wiki/Q1514741","display_name":"Set (abstract data type)","level":2,"score":0.0},{"id":"https://openalex.org/C17744445","wikidata":"https://www.wikidata.org/wiki/Q36442","display_name":"Political science","level":0,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/glocom.2014.7417496","is_oa":false,"landing_page_url":"https://doi.org/10.1109/glocom.2014.7417496","pdf_url":null,"source":{"id":"https://openalex.org/S4363607712","display_name":"2015 IEEE Global Communications Conference (GLOBECOM)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"host_organization_lineage_names":[],"type":"conference"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2015 IEEE Global Communications Conference (GLOBECOM)","raw_type":"proceedings-article"}],"best_oa_location":null,"sustainable_development_goals":[{"id":"https://metadata.un.org/sdg/16","score":0.6899999976158142,"display_name":"Peace, Justice and strong institutions"}],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":11,"referenced_works":["https://openalex.org/W1993908368","https://openalex.org/W2000179480","https://openalex.org/W2020174383","https://openalex.org/W2086953401","https://openalex.org/W2107080958","https://openalex.org/W2133214726","https://openalex.org/W2133405866","https://openalex.org/W2162461354","https://openalex.org/W2595142274","https://openalex.org/W4253543241","https://openalex.org/W6734797129"],"related_works":["https://openalex.org/W2893995248","https://openalex.org/W2148868771","https://openalex.org/W2085207364","https://openalex.org/W2901356766","https://openalex.org/W2018164385","https://openalex.org/W1789159349","https://openalex.org/W4237217078","https://openalex.org/W4205600360","https://openalex.org/W2095450438","https://openalex.org/W4388321039"],"abstract_inverted_index":{"In":[0,58],"this":[1],"paper,":[2],"we":[3],"develop":[4],"two":[5],"approaches":[6,79],"for":[7,16],"designing":[8],"unitarily-constrained":[9],"space-time":[10,28,45,63,73],"block":[11,64],"codes,":[12,29,65],"which":[13,30],"are":[14,31,49],"suitable":[15],"communicating":[17],"high-resolution":[18],"information":[19],"in":[20],"layered":[21],"multiple-input":[22],"multiple-output":[23],"broadcast":[24],"channels.":[25],"Unlike":[26],"existing":[27],"usually":[32],"synthesized":[33],"from":[34],"standard":[35],"phase-shift":[36],"keying":[37],"(PSK)":[38],"or":[39],"quadrature":[40],"amplitude":[41],"modulation":[42],"constellations,":[43,71],"the":[44,55,72,77,93,99],"codes":[46,74],"proposed":[47,78],"herein":[48],"designed":[50],"using":[51],"direct":[52],"optimization":[53],"over":[54],"unitary":[56,62,100],"group.":[57,101],"comparison":[59],"with":[60,69],"conventional":[61],"including":[66],"Alamouti":[67],"code":[68],"PSK":[70],"generated":[75],"by":[76],"exhibit":[80],"significantly":[81],"better":[82],"performance,":[83],"more":[84,89],"favorable":[85],"distance":[86],"spectra":[87],"and":[88],"effective":[90],"utilization":[91],"of":[92,95],"degrees":[94],"freedom":[96],"that":[97],"underlie":[98]},"counts_by_year":[],"updated_date":"2026-06-11T09:08:48.828518","created_date":"2025-10-10T00:00:00"}