{"id":"https://openalex.org/W1967749936","doi":"https://doi.org/10.1049/iet-com:20060387","title":"Performance of impulse radio direct sequence ultra-wideband system with variable-length spreading sequences","display_name":"Performance of impulse radio direct sequence ultra-wideband system with variable-length spreading sequences","publication_year":2007,"publication_date":"2007-08-02","ids":{"openalex":"https://openalex.org/W1967749936","doi":"https://doi.org/10.1049/iet-com:20060387","mag":"1967749936"},"language":"en","primary_location":{"id":"doi:10.1049/iet-com:20060387","is_oa":false,"landing_page_url":"https://doi.org/10.1049/iet-com:20060387","pdf_url":null,"source":{"id":"https://openalex.org/S85427048","display_name":"IET Communications","issn_l":"1751-8628","issn":["1751-8628","1751-8636"],"is_oa":false,"is_in_doaj":true,"is_core":true,"host_organization":"https://openalex.org/P4310311714","host_organization_name":"Institution of Engineering and Technology","host_organization_lineage":["https://openalex.org/P4310311714"],"host_organization_lineage_names":["Institution of Engineering and Technology"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"IET Communications","raw_type":"journal-article"},"type":"article","indexed_in":["crossref","doaj"],"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/A5100448104","display_name":"Ran Liu","orcid":"https://orcid.org/0009-0006-2067-1196"},"institutions":[{"id":"https://openalex.org/I39586589","display_name":"Swansea University","ror":"https://ror.org/053fq8t95","country_code":"GB","type":"education","lineage":["https://openalex.org/I39586589"]},{"id":"https://openalex.org/I97429440","display_name":"University of Wales","ror":"https://ror.org/01se4f844","country_code":"GB","type":"education","lineage":["https://openalex.org/I97429440"]}],"countries":["GB"],"is_corresponding":true,"raw_author_name":"R. Liu","raw_affiliation_strings":["Institute of Advanced Telecommunications, University of Wales, Swansea, SA2 8PP, UK"],"affiliations":[{"raw_affiliation_string":"Institute of Advanced Telecommunications, University of Wales, Swansea, SA2 8PP, UK","institution_ids":["https://openalex.org/I39586589","https://openalex.org/I97429440"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5088539425","display_name":"Jaafar M. H. Elmirghani","orcid":"https://orcid.org/0000-0002-3319-9103"},"institutions":[{"id":"https://openalex.org/I39586589","display_name":"Swansea University","ror":"https://ror.org/053fq8t95","country_code":"GB","type":"education","lineage":["https://openalex.org/I39586589"]},{"id":"https://openalex.org/I97429440","display_name":"University of Wales","ror":"https://ror.org/01se4f844","country_code":"GB","type":"education","lineage":["https://openalex.org/I97429440"]}],"countries":["GB"],"is_corresponding":false,"raw_author_name":"J. Elmirghani","raw_affiliation_strings":["Institute of Advanced Telecommunications, University of Wales, Swansea, SA2 8PP, UK"],"affiliations":[{"raw_affiliation_string":"Institute of Advanced Telecommunications, University of Wales, Swansea, SA2 8PP, UK","institution_ids":["https://openalex.org/I39586589","https://openalex.org/I97429440"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":2,"corresponding_author_ids":["https://openalex.org/A5100448104"],"corresponding_institution_ids":["https://openalex.org/I39586589","https://openalex.org/I97429440"],"apc_list":{"value":2000,"currency":"EUR","value_usd":2200},"apc_paid":null,"fwci":1.405,"has_fulltext":false,"cited_by_count":13,"citation_normalized_percentile":{"value":0.81005201,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":89,"max":96},"biblio":{"volume":"1","issue":"4","first_page":"597","last_page":"603"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T12024","display_name":"Ultra-Wideband Communications Technology","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/T12024","display_name":"Ultra-Wideband Communications Technology","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/T10069","display_name":"Antenna Design and Analysis","score":0.9962000250816345,"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/T10936","display_name":"Millimeter-Wave Propagation and Modeling","score":0.9810000061988831,"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/computer-science","display_name":"Computer science","score":0.7422444224357605},{"id":"https://openalex.org/keywords/multipath-interference","display_name":"Multipath interference","score":0.7240663170814514},{"id":"https://openalex.org/keywords/multipath-propagation","display_name":"Multipath propagation","score":0.6341544389724731},{"id":"https://openalex.org/keywords/rake-receiver","display_name":"Rake receiver","score":0.5449314713478088},{"id":"https://openalex.org/keywords/ultra-wideband","display_name":"Ultra-wideband","score":0.4973154366016388},{"id":"https://openalex.org/keywords/interference","display_name":"Interference (communication)","score":0.4933852255344391},{"id":"https://openalex.org/keywords/channel","display_name":"Channel (broadcasting)","score":0.4796086549758911},{"id":"https://openalex.org/keywords/communications-system","display_name":"Communications system","score":0.4603739380836487},{"id":"https://openalex.org/keywords/delay-spread","display_name":"Delay spread","score":0.45577147603034973},{"id":"https://openalex.org/keywords/wireless","display_name":"Wireless","score":0.4256800711154938},{"id":"https://openalex.org/keywords/bit-error-rate","display_name":"Bit error rate","score":0.4252394735813141},{"id":"https://openalex.org/keywords/wideband","display_name":"Wideband","score":0.42186883091926575},{"id":"https://openalex.org/keywords/electronic-engineering","display_name":"Electronic engineering","score":0.4134616553783417},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.3871951103210449},{"id":"https://openalex.org/keywords/telecommunications","display_name":"Telecommunications","score":0.3266845941543579},{"id":"https://openalex.org/keywords/engineering","display_name":"Engineering","score":0.0785735547542572}],"concepts":[{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.7422444224357605},{"id":"https://openalex.org/C174749922","wikidata":"https://www.wikidata.org/wiki/Q11827794","display_name":"Multipath interference","level":4,"score":0.7240663170814514},{"id":"https://openalex.org/C161218011","wikidata":"https://www.wikidata.org/wiki/Q11827794","display_name":"Multipath propagation","level":3,"score":0.6341544389724731},{"id":"https://openalex.org/C23486597","wikidata":"https://www.wikidata.org/wiki/Q1125543","display_name":"Rake receiver","level":4,"score":0.5449314713478088},{"id":"https://openalex.org/C21916231","wikidata":"https://www.wikidata.org/wiki/Q851424","display_name":"Ultra-wideband","level":2,"score":0.4973154366016388},{"id":"https://openalex.org/C32022120","wikidata":"https://www.wikidata.org/wiki/Q797225","display_name":"Interference (communication)","level":3,"score":0.4933852255344391},{"id":"https://openalex.org/C127162648","wikidata":"https://www.wikidata.org/wiki/Q16858953","display_name":"Channel (broadcasting)","level":2,"score":0.4796086549758911},{"id":"https://openalex.org/C101765175","wikidata":"https://www.wikidata.org/wiki/Q577764","display_name":"Communications system","level":2,"score":0.4603739380836487},{"id":"https://openalex.org/C49456836","wikidata":"https://www.wikidata.org/wiki/Q666814","display_name":"Delay spread","level":4,"score":0.45577147603034973},{"id":"https://openalex.org/C555944384","wikidata":"https://www.wikidata.org/wiki/Q249","display_name":"Wireless","level":2,"score":0.4256800711154938},{"id":"https://openalex.org/C56296756","wikidata":"https://www.wikidata.org/wiki/Q840922","display_name":"Bit error rate","level":3,"score":0.4252394735813141},{"id":"https://openalex.org/C2780202535","wikidata":"https://www.wikidata.org/wiki/Q4524457","display_name":"Wideband","level":2,"score":0.42186883091926575},{"id":"https://openalex.org/C24326235","wikidata":"https://www.wikidata.org/wiki/Q126095","display_name":"Electronic engineering","level":1,"score":0.4134616553783417},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.3871951103210449},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.3266845941543579},{"id":"https://openalex.org/C127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","level":0,"score":0.0785735547542572}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1049/iet-com:20060387","is_oa":false,"landing_page_url":"https://doi.org/10.1049/iet-com:20060387","pdf_url":null,"source":{"id":"https://openalex.org/S85427048","display_name":"IET Communications","issn_l":"1751-8628","issn":["1751-8628","1751-8636"],"is_oa":false,"is_in_doaj":true,"is_core":true,"host_organization":"https://openalex.org/P4310311714","host_organization_name":"Institution of Engineering and Technology","host_organization_lineage":["https://openalex.org/P4310311714"],"host_organization_lineage_names":["Institution of Engineering and Technology"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"IET Communications","raw_type":"journal-article"}],"best_oa_location":null,"sustainable_development_goals":[{"display_name":"Affordable and clean energy","id":"https://metadata.un.org/sdg/7","score":0.6700000166893005}],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":9,"referenced_works":["https://openalex.org/W2033356537","https://openalex.org/W2117954705","https://openalex.org/W2137083705","https://openalex.org/W2141613553","https://openalex.org/W2160202632","https://openalex.org/W2163363194","https://openalex.org/W2798333393","https://openalex.org/W4249295773","https://openalex.org/W7018733341"],"related_works":["https://openalex.org/W1574430796","https://openalex.org/W1916663633","https://openalex.org/W2110552254","https://openalex.org/W1935231794","https://openalex.org/W2125264923","https://openalex.org/W2111708194","https://openalex.org/W2132182144","https://openalex.org/W2159725040","https://openalex.org/W2593498936","https://openalex.org/W2166624944"],"abstract_inverted_index":{"An":[0],"adaptive":[1],"transmission":[2],"scheme":[3],"using":[4],"variable-length":[5],"spreading":[6,46,55,144],"sequences":[7],"(VLSS)":[8],"is":[9,13,32,64,94],"proposed.":[10],"The":[11,91],"system":[12,50,60,83,93,135,139],"based":[14],"on":[15],"an":[16],"impulse":[17],"direct":[18],"sequence":[19],"ultra-wideband":[20],"(DS-UWB)":[21],"approach":[22],"for":[23],"wireless":[24],"communication":[25],"where":[26],"the":[27,37,48,52,59,71,82,108,131,137,143],"number":[28],"of":[29,54,87,103],"active":[30],"users":[31],"variable.":[33],"In":[34],"contrast":[35],"to":[36,58,66,69],"conventional":[38,138],"DS-UWB":[39,134],"system,":[40],"which":[41,63],"employs":[42],"a":[43,100],"fixed":[44],"length":[45,53],"code,":[47],"proposed":[49,92,132],"changes":[51],"code":[56],"according":[57],"load":[61],"adaptively,":[62],"proven":[65],"be":[67],"able":[68],"reduce":[70],"inter-chip":[72],"interference,":[73],"inter-symbol":[74],"interference":[75,78],"and":[76,79,117],"multiple-access":[77],"thus":[80],"improve":[81],"performance":[84],"in":[85,96],"terms":[86],"bit":[88],"error":[89],"rate.":[90],"simulated":[95],"multipath":[97,104],"channels":[98],"with":[99],"high":[101],"level":[102],"fragments,":[105],"modelled":[106],"by":[107,140],"standard":[109],"IEEE":[110],"802.15.3a":[111],"indoor":[112],"channel":[113,118],"model":[114,119],"1":[115],"(CM1)":[116],"2":[120],"(CM2).":[121],"Numerical":[122],"results":[123],"demonstrate":[124],"that":[125],"when":[126],"RAKE":[127],"receivers":[128],"are":[129],"employed,":[130],"VLSS":[133],"outperforms":[136],"appropriately":[141],"allocating":[142],"sequences.":[145]},"counts_by_year":[{"year":2015,"cited_by_count":1},{"year":2014,"cited_by_count":1},{"year":2013,"cited_by_count":2}],"updated_date":"2025-11-06T03:46:38.306776","created_date":"2025-10-10T00:00:00"}
