{"id":"https://openalex.org/W2933428627","doi":"https://doi.org/10.1109/lwc.2019.2908648","title":"Capacity of $2\\times2$ MIMO HF NVIS Channels With Linearly Polarized Horizontal Antennas","display_name":"Capacity of $2\\times2$ MIMO HF NVIS Channels With Linearly Polarized Horizontal Antennas","publication_year":2019,"publication_date":"2019-04-01","ids":{"openalex":"https://openalex.org/W2933428627","doi":"https://doi.org/10.1109/lwc.2019.2908648","mag":"2933428627"},"language":"en","primary_location":{"id":"doi:10.1109/lwc.2019.2908648","is_oa":false,"landing_page_url":"https://doi.org/10.1109/lwc.2019.2908648","pdf_url":null,"source":{"id":"https://openalex.org/S2500830676","display_name":"IEEE Wireless Communications Letters","issn_l":"2162-2337","issn":["2162-2337","2162-2345"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310319808","host_organization_name":"Institute of Electrical and Electronics Engineers","host_organization_lineage":["https://openalex.org/P4310319808"],"host_organization_lineage_names":["Institute of Electrical and Electronics Engineers"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"IEEE Wireless Communications Letters","raw_type":"journal-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/A5073047756","display_name":"Umaisaroh Umaisaroh","orcid":"https://orcid.org/0000-0001-7255-0544"},"institutions":[{"id":"https://openalex.org/I166843116","display_name":"Sepuluh Nopember Institute of Technology","ror":"https://ror.org/05kbmmt89","country_code":"ID","type":"education","lineage":["https://openalex.org/I166843116"]}],"countries":["ID"],"is_corresponding":true,"raw_author_name":"Umaisaroh Umaisaroh","raw_affiliation_strings":["Department of Electrical Engineering, Institut Teknologi Sepuluh Nopember, Surabaya, Indonesia"],"affiliations":[{"raw_affiliation_string":"Department of Electrical Engineering, Institut Teknologi Sepuluh Nopember, Surabaya, Indonesia","institution_ids":["https://openalex.org/I166843116"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5001036418","display_name":"Gamantyo Hendrantoro","orcid":"https://orcid.org/0000-0003-3955-5276"},"institutions":[{"id":"https://openalex.org/I166843116","display_name":"Sepuluh Nopember Institute of Technology","ror":"https://ror.org/05kbmmt89","country_code":"ID","type":"education","lineage":["https://openalex.org/I166843116"]}],"countries":["ID"],"is_corresponding":false,"raw_author_name":"Gamantyo Hendrantoro","raw_affiliation_strings":["Department of Electrical Engineering, Institut Teknologi Sepuluh Nopember, Surabaya, Indonesia"],"affiliations":[{"raw_affiliation_string":"Department of Electrical Engineering, Institut Teknologi Sepuluh Nopember, Surabaya, Indonesia","institution_ids":["https://openalex.org/I166843116"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5075525545","display_name":"Achmad Mauludiyanto","orcid":"https://orcid.org/0000-0003-2427-6629"},"institutions":[{"id":"https://openalex.org/I166843116","display_name":"Sepuluh Nopember Institute of Technology","ror":"https://ror.org/05kbmmt89","country_code":"ID","type":"education","lineage":["https://openalex.org/I166843116"]}],"countries":["ID"],"is_corresponding":false,"raw_author_name":"Achmad Mauludiyanto","raw_affiliation_strings":["Department of Electrical Engineering, Institut Teknologi Sepuluh Nopember, Surabaya, Indonesia"],"affiliations":[{"raw_affiliation_string":"Department of Electrical Engineering, Institut Teknologi Sepuluh Nopember, Surabaya, Indonesia","institution_ids":["https://openalex.org/I166843116"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5050231576","display_name":"Takeshi Fukusako","orcid":"https://orcid.org/0000-0001-9937-8174"},"institutions":[{"id":"https://openalex.org/I96036126","display_name":"Kumamoto University","ror":"https://ror.org/02cgss904","country_code":"JP","type":"education","lineage":["https://openalex.org/I96036126"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Takeshi Fukusako","raw_affiliation_strings":["Graduate School of Science and Technology, Kumamoto University, Kumamoto, Japan"],"affiliations":[{"raw_affiliation_string":"Graduate School of Science and Technology, Kumamoto University, Kumamoto, Japan","institution_ids":["https://openalex.org/I96036126"]}]}],"institutions":[],"countries_distinct_count":2,"institutions_distinct_count":4,"corresponding_author_ids":["https://openalex.org/A5073047756"],"corresponding_institution_ids":["https://openalex.org/I166843116"],"apc_list":null,"apc_paid":null,"fwci":3.5703,"has_fulltext":false,"cited_by_count":12,"citation_normalized_percentile":{"value":0.92230534,"is_in_top_1_percent":false,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":89,"max":97},"biblio":{"volume":"8","issue":"4","first_page":"1120","last_page":"1123"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T12042","display_name":"Satellite Communication Systems","score":0.9929999709129333,"subfield":{"id":"https://openalex.org/subfields/2202","display_name":"Aerospace 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/T12042","display_name":"Satellite Communication Systems","score":0.9929999709129333,"subfield":{"id":"https://openalex.org/subfields/2202","display_name":"Aerospace 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/T10575","display_name":"Wireless Communication Networks Research","score":0.9889000058174133,"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/T10148","display_name":"Advanced MIMO Systems Optimization","score":0.9858999848365784,"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"}}],"keywords":[{"id":"https://openalex.org/keywords/mimo","display_name":"MIMO","score":0.8513321280479431},{"id":"https://openalex.org/keywords/skywave","display_name":"Skywave","score":0.676586925983429},{"id":"https://openalex.org/keywords/precoding","display_name":"Precoding","score":0.6648202538490295},{"id":"https://openalex.org/keywords/polarization","display_name":"Polarization (electrochemistry)","score":0.5791289210319519},{"id":"https://openalex.org/keywords/channel-capacity","display_name":"Channel capacity","score":0.5750828385353088},{"id":"https://openalex.org/keywords/telecommunications","display_name":"Telecommunications","score":0.43598759174346924},{"id":"https://openalex.org/keywords/topology","display_name":"Topology (electrical circuits)","score":0.4171154201030731},{"id":"https://openalex.org/keywords/channel","display_name":"Channel (broadcasting)","score":0.4138477146625519},{"id":"https://openalex.org/keywords/physics","display_name":"Physics","score":0.41123026609420776},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.33164358139038086},{"id":"https://openalex.org/keywords/engineering","display_name":"Engineering","score":0.1778700053691864},{"id":"https://openalex.org/keywords/electrical-engineering","display_name":"Electrical engineering","score":0.1776781678199768}],"concepts":[{"id":"https://openalex.org/C207987634","wikidata":"https://www.wikidata.org/wiki/Q176862","display_name":"MIMO","level":3,"score":0.8513321280479431},{"id":"https://openalex.org/C45860500","wikidata":"https://www.wikidata.org/wiki/Q1639901","display_name":"Skywave","level":3,"score":0.676586925983429},{"id":"https://openalex.org/C160562895","wikidata":"https://www.wikidata.org/wiki/Q7239557","display_name":"Precoding","level":4,"score":0.6648202538490295},{"id":"https://openalex.org/C205049153","wikidata":"https://www.wikidata.org/wiki/Q2698605","display_name":"Polarization (electrochemistry)","level":2,"score":0.5791289210319519},{"id":"https://openalex.org/C97744766","wikidata":"https://www.wikidata.org/wiki/Q870845","display_name":"Channel capacity","level":3,"score":0.5750828385353088},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.43598759174346924},{"id":"https://openalex.org/C184720557","wikidata":"https://www.wikidata.org/wiki/Q7825049","display_name":"Topology (electrical circuits)","level":2,"score":0.4171154201030731},{"id":"https://openalex.org/C127162648","wikidata":"https://www.wikidata.org/wiki/Q16858953","display_name":"Channel (broadcasting)","level":2,"score":0.4138477146625519},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.41123026609420776},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.33164358139038086},{"id":"https://openalex.org/C127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","level":0,"score":0.1778700053691864},{"id":"https://openalex.org/C119599485","wikidata":"https://www.wikidata.org/wiki/Q43035","display_name":"Electrical engineering","level":1,"score":0.1776781678199768},{"id":"https://openalex.org/C554190296","wikidata":"https://www.wikidata.org/wiki/Q47528","display_name":"Radar","level":2,"score":0.0},{"id":"https://openalex.org/C147789679","wikidata":"https://www.wikidata.org/wiki/Q11372","display_name":"Physical chemistry","level":1,"score":0.0},{"id":"https://openalex.org/C185592680","wikidata":"https://www.wikidata.org/wiki/Q2329","display_name":"Chemistry","level":0,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/lwc.2019.2908648","is_oa":false,"landing_page_url":"https://doi.org/10.1109/lwc.2019.2908648","pdf_url":null,"source":{"id":"https://openalex.org/S2500830676","display_name":"IEEE Wireless Communications Letters","issn_l":"2162-2337","issn":["2162-2337","2162-2345"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310319808","host_organization_name":"Institute of Electrical and Electronics Engineers","host_organization_lineage":["https://openalex.org/P4310319808"],"host_organization_lineage_names":["Institute of Electrical and Electronics Engineers"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"IEEE Wireless Communications Letters","raw_type":"journal-article"}],"best_oa_location":null,"sustainable_development_goals":[{"id":"https://metadata.un.org/sdg/7","score":0.7300000190734863,"display_name":"Affordable and clean energy"}],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":15,"referenced_works":["https://openalex.org/W659120338","https://openalex.org/W1600328551","https://openalex.org/W1647572132","https://openalex.org/W1983027116","https://openalex.org/W2041936487","https://openalex.org/W2126096525","https://openalex.org/W2145276549","https://openalex.org/W2163138196","https://openalex.org/W2169708270","https://openalex.org/W2532062913","https://openalex.org/W2591538806","https://openalex.org/W2783519099","https://openalex.org/W2798333393","https://openalex.org/W2985849463","https://openalex.org/W4213019392"],"related_works":["https://openalex.org/W2489379490","https://openalex.org/W2141031289","https://openalex.org/W1539855486","https://openalex.org/W2349752445","https://openalex.org/W3198080347","https://openalex.org/W2355231046","https://openalex.org/W2488227130","https://openalex.org/W2042947524","https://openalex.org/W4389279152","https://openalex.org/W4231582551"],"abstract_inverted_index":{"A":[0],"multiple-input":[1],"multiple-output":[2],"(MIMO)":[3],"system":[4],"is":[5,128],"studied":[6],"to":[7,88,118],"improve":[8],"the":[9,26,32,69,109,114,119,122],"channel":[10,27,81],"capacity":[11,28,90,110],"in":[12,43,92,130],"high":[13],"frequency":[14],"(HF)":[15],"communication":[16],"systems.":[17,104],"There":[18],"has":[19],"not":[20],"been":[21],"any":[22],"theoretical":[23],"explanation":[24],"for":[25],"improvement":[29,91,111],"by":[30],"invoking":[31],"orthogonal":[33,55],"circularly":[34],"polarized":[35],"ordinary":[36],"(O)":[37],"and":[38,63,124,132],"extra-ordinary":[39],"(X)":[40],"modes":[41],"inherent":[42],"HF":[44,75],"skywave":[45,79],"propagation,":[46],"especially":[47],"when":[48],"a":[49,135],"pair":[50],"of":[51,71,100,121,134],"horizontal":[52,95],"antennas":[53,97],"with":[54],"linear":[56,96],"polarization":[57],"are":[58],"used":[59,87],"at":[60],"both":[61],"transmit":[62],"receive":[64],"sides.":[65],"This":[66],"letter":[67],"reports":[68],"formulation":[70],"$2{\\times":[72],"}2$":[73],"MIMO":[74],"near":[76],"vertical":[77],"incidence":[78],"(NVIS)":[80],"matrix":[82],"elements":[83],"that":[84,99,108],"can":[85],"be":[86],"explain":[89],"systems":[93],"employing":[94],"over":[98],"single-input":[101],"single-output":[102],"(SISO)":[103],"The":[105],"result":[106],"suggests":[107],"relies":[112],"on":[113],"diversity":[115],"phenomenon":[116],"due":[117],"presence":[120],"O":[123],"X":[125],"waves,":[126],"which":[127],"observable":[129],"experiment":[131],"simulation":[133],"7":[136],"MHz":[137],"NVIS":[138],"link.":[139]},"counts_by_year":[{"year":2025,"cited_by_count":2},{"year":2023,"cited_by_count":1},{"year":2022,"cited_by_count":3},{"year":2021,"cited_by_count":2},{"year":2020,"cited_by_count":3},{"year":2019,"cited_by_count":1}],"updated_date":"2026-02-25T23:00:34.991745","created_date":"2025-10-10T00:00:00"}