{"id":"https://openalex.org/W1978177774","doi":"https://doi.org/10.1109/pimrc.2008.4699756","title":"Frequency rotation for suppressing path interference and achieving large frequency diversity in uplink IFDMA","display_name":"Frequency rotation for suppressing path interference and achieving large frequency diversity in uplink IFDMA","publication_year":2008,"publication_date":"2008-09-01","ids":{"openalex":"https://openalex.org/W1978177774","doi":"https://doi.org/10.1109/pimrc.2008.4699756","mag":"1978177774"},"language":"en","primary_location":{"id":"doi:10.1109/pimrc.2008.4699756","is_oa":false,"landing_page_url":"https://doi.org/10.1109/pimrc.2008.4699756","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2008 IEEE 19th International Symposium on Personal, Indoor and Mobile Radio Communications","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/A5006789640","display_name":"Osamu Takyu","orcid":"https://orcid.org/0000-0003-3221-6714"},"institutions":[{"id":"https://openalex.org/I161296585","display_name":"Tokyo University of Science","ror":"https://ror.org/05sj3n476","country_code":"JP","type":"education","lineage":["https://openalex.org/I161296585"]}],"countries":["JP"],"is_corresponding":true,"raw_author_name":"Osamu Takyu","raw_affiliation_strings":["Department of Electrical Engineering, Tokyo University of Science, Chiba, Japan","Dept. of Electr. Eng., Tokyo Univ. of Sci., Noda"],"affiliations":[{"raw_affiliation_string":"Department of Electrical Engineering, Tokyo University of Science, Chiba, Japan","institution_ids":["https://openalex.org/I161296585"]},{"raw_affiliation_string":"Dept. of Electr. Eng., Tokyo Univ. of Sci., Noda","institution_ids":["https://openalex.org/I161296585"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5101028629","display_name":"Yohtaro Umeda","orcid":null},"institutions":[{"id":"https://openalex.org/I161296585","display_name":"Tokyo University of Science","ror":"https://ror.org/05sj3n476","country_code":"JP","type":"education","lineage":["https://openalex.org/I161296585"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Yohtaro Umeda","raw_affiliation_strings":["Department of Electrical Engineering, Tokyo University of Science, Noda, Chiba, Japan","Dept. of Electr. Eng., Tokyo Univ. of Sci., Noda"],"affiliations":[{"raw_affiliation_string":"Department of Electrical Engineering, Tokyo University of Science, Noda, Chiba, Japan","institution_ids":["https://openalex.org/I161296585"]},{"raw_affiliation_string":"Dept. of Electr. Eng., Tokyo Univ. of Sci., Noda","institution_ids":["https://openalex.org/I161296585"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5103508091","display_name":"Masao Nakagawa","orcid":"https://orcid.org/0000-0003-3831-9298"},"institutions":[{"id":"https://openalex.org/I203951103","display_name":"Keio University","ror":"https://ror.org/02kn6nx58","country_code":"JP","type":"education","lineage":["https://openalex.org/I203951103"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Masao Nakagawa","raw_affiliation_strings":["Department of Information and Computer Science, Keio University, Yokohama, Kanagawa, Japan","Dept. of Inf. & Comput. Sci, Keio Univ., Yokohama"],"affiliations":[{"raw_affiliation_string":"Department of Information and Computer Science, Keio University, Yokohama, Kanagawa, Japan","institution_ids":["https://openalex.org/I203951103"]},{"raw_affiliation_string":"Dept. of Inf. & Comput. Sci, Keio Univ., Yokohama","institution_ids":["https://openalex.org/I203951103"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":3,"corresponding_author_ids":["https://openalex.org/A5006789640"],"corresponding_institution_ids":["https://openalex.org/I161296585"],"apc_list":null,"apc_paid":null,"fwci":0.0,"has_fulltext":false,"cited_by_count":0,"citation_normalized_percentile":{"value":0.08482738,"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":"5"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10575","display_name":"Wireless Communication Networks Research","score":0.9998999834060669,"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"}},"topics":[{"id":"https://openalex.org/T10575","display_name":"Wireless Communication Networks Research","score":0.9998999834060669,"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/T10125","display_name":"Advanced Wireless Communication Techniques","score":0.9994999766349792,"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/T12146","display_name":"Power Line Communications and Noise","score":0.9987999796867371,"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/diversity-scheme","display_name":"Diversity scheme","score":0.8146445155143738},{"id":"https://openalex.org/keywords/diversity-gain","display_name":"Diversity gain","score":0.7454924583435059},{"id":"https://openalex.org/keywords/telecommunications-link","display_name":"Telecommunications link","score":0.7406608462333679},{"id":"https://openalex.org/keywords/fading","display_name":"Fading","score":0.7263435125350952},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.61961829662323},{"id":"https://openalex.org/keywords/orthogonality","display_name":"Orthogonality","score":0.5797103643417358},{"id":"https://openalex.org/keywords/interference","display_name":"Interference (communication)","score":0.5708414316177368},{"id":"https://openalex.org/keywords/electronic-engineering","display_name":"Electronic engineering","score":0.4917586147785187},{"id":"https://openalex.org/keywords/multipath-propagation","display_name":"Multipath propagation","score":0.448192298412323},{"id":"https://openalex.org/keywords/co-channel-interference","display_name":"Co-channel interference","score":0.43296903371810913},{"id":"https://openalex.org/keywords/orthogonal-frequency-division-multiplexing","display_name":"Orthogonal frequency-division multiplexing","score":0.4214332401752472},{"id":"https://openalex.org/keywords/channel","display_name":"Channel (broadcasting)","score":0.3887113928794861},{"id":"https://openalex.org/keywords/telecommunications","display_name":"Telecommunications","score":0.3578379154205322},{"id":"https://openalex.org/keywords/engineering","display_name":"Engineering","score":0.1943824291229248},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.1359231173992157}],"concepts":[{"id":"https://openalex.org/C198746922","wikidata":"https://www.wikidata.org/wiki/Q1230593","display_name":"Diversity scheme","level":4,"score":0.8146445155143738},{"id":"https://openalex.org/C164785522","wikidata":"https://www.wikidata.org/wiki/Q5283966","display_name":"Diversity gain","level":4,"score":0.7454924583435059},{"id":"https://openalex.org/C138660444","wikidata":"https://www.wikidata.org/wiki/Q5607897","display_name":"Telecommunications link","level":2,"score":0.7406608462333679},{"id":"https://openalex.org/C81978471","wikidata":"https://www.wikidata.org/wiki/Q1196572","display_name":"Fading","level":3,"score":0.7263435125350952},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.61961829662323},{"id":"https://openalex.org/C17137986","wikidata":"https://www.wikidata.org/wiki/Q215067","display_name":"Orthogonality","level":2,"score":0.5797103643417358},{"id":"https://openalex.org/C32022120","wikidata":"https://www.wikidata.org/wiki/Q797225","display_name":"Interference (communication)","level":3,"score":0.5708414316177368},{"id":"https://openalex.org/C24326235","wikidata":"https://www.wikidata.org/wiki/Q126095","display_name":"Electronic engineering","level":1,"score":0.4917586147785187},{"id":"https://openalex.org/C161218011","wikidata":"https://www.wikidata.org/wiki/Q11827794","display_name":"Multipath propagation","level":3,"score":0.448192298412323},{"id":"https://openalex.org/C6532628","wikidata":"https://www.wikidata.org/wiki/Q5137431","display_name":"Co-channel interference","level":4,"score":0.43296903371810913},{"id":"https://openalex.org/C40409654","wikidata":"https://www.wikidata.org/wiki/Q375889","display_name":"Orthogonal frequency-division multiplexing","level":3,"score":0.4214332401752472},{"id":"https://openalex.org/C127162648","wikidata":"https://www.wikidata.org/wiki/Q16858953","display_name":"Channel (broadcasting)","level":2,"score":0.3887113928794861},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.3578379154205322},{"id":"https://openalex.org/C127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","level":0,"score":0.1943824291229248},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.1359231173992157},{"id":"https://openalex.org/C2524010","wikidata":"https://www.wikidata.org/wiki/Q8087","display_name":"Geometry","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/pimrc.2008.4699756","is_oa":false,"landing_page_url":"https://doi.org/10.1109/pimrc.2008.4699756","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2008 IEEE 19th International Symposium on Personal, Indoor and Mobile Radio Communications","raw_type":"proceedings-article"}],"best_oa_location":null,"sustainable_development_goals":[],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":8,"referenced_works":["https://openalex.org/W2009220439","https://openalex.org/W2024169580","https://openalex.org/W2077863157","https://openalex.org/W2117699088","https://openalex.org/W2131094032","https://openalex.org/W2144433515","https://openalex.org/W2161137605","https://openalex.org/W6670309612"],"related_works":["https://openalex.org/W2042241840","https://openalex.org/W2538116020","https://openalex.org/W2322059061","https://openalex.org/W2137385664","https://openalex.org/W2109762180","https://openalex.org/W2152091471","https://openalex.org/W2797745808","https://openalex.org/W1978177774","https://openalex.org/W2184020688","https://openalex.org/W2111256278"],"abstract_inverted_index":{"The":[0,117],"novel":[1],"frequency":[2,13,35,63,67,90,95,104],"rotation":[3,68],"techniques":[4],"for":[5,72],"suppressing":[6,56],"the":[7,12,24,32,39,47,57,62,66,82,86,93,102,109,112,120],"path":[8,25,58],"interference":[9,26,59],"and":[10,31,60,107],"increasing":[11],"diversity":[14,36,64],"gain":[15,37],"are":[16],"proposed":[17,71,94],"in":[18,27],"uplink":[19,83],"IFDMA":[20],"system.":[21],"In":[22,92],"IFDMA,":[23],"multipath":[28],"fading":[29],"channel":[30],"reduction":[33],"of":[34,49,88,119],"degrades":[38],"error":[40],"rate":[41],"performance,":[42],"especially":[43],"more":[44],"significantly":[45],"as":[46],"number":[48],"simultaneous":[50],"access":[51,75],"users":[52,98,113],"becomes":[53],"large.":[54],"For":[55],"enlarging":[61],"gain,":[65],"has":[69],"been":[70],"down":[73],"link":[74],"but":[76],"it":[77],"cannot":[78],"be":[79,115],"applied":[80],"to":[81,85],"due":[84],"distortion":[87],"user":[89],"orthogonality.":[91],"rotation,":[96],"multiple":[97,103],"do":[99],"not":[100],"share":[101],"orthogonal":[105],"channels":[106],"thus":[108],"orthogonality":[110],"among":[111],"can":[114],"maintained.":[116],"effect":[118],"revised":[121],"technique":[122],"is":[123],"shown":[124],"by":[125],"computer":[126],"simulation.":[127]},"counts_by_year":[],"updated_date":"2025-11-06T03:46:38.306776","created_date":"2025-10-10T00:00:00"}