{"id":"https://openalex.org/W2098513709","doi":"https://doi.org/10.1109/vetecf.2009.5378688","title":"Log-Likelihood Ratios for LDPC Codes with Pilot-Symbol-Assisted BPSK Transmission over Flat Rayleigh Fading Channels","display_name":"Log-Likelihood Ratios for LDPC Codes with Pilot-Symbol-Assisted BPSK Transmission over Flat Rayleigh Fading Channels","publication_year":2009,"publication_date":"2009-09-01","ids":{"openalex":"https://openalex.org/W2098513709","doi":"https://doi.org/10.1109/vetecf.2009.5378688","mag":"2098513709"},"language":"en","primary_location":{"id":"doi:10.1109/vetecf.2009.5378688","is_oa":false,"landing_page_url":"https://doi.org/10.1109/vetecf.2009.5378688","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2009 IEEE 70th Vehicular Technology Conference Fall","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/A5008684838","display_name":"Haifeng Yuan","orcid":"https://orcid.org/0000-0002-8086-4217"},"institutions":[{"id":"https://openalex.org/I165932596","display_name":"National University of Singapore","ror":"https://ror.org/01tgyzw49","country_code":"SG","type":"education","lineage":["https://openalex.org/I165932596"]}],"countries":["SG"],"is_corresponding":true,"raw_author_name":"Haifeng Yuan","raw_affiliation_strings":["Department of Electrical and Computer Engineering, National University of Singapore, Singapore","[Dept. of Electr. & Comput. Eng., Nat. Univ. of Singapore, Singapore, Singapore]"],"affiliations":[{"raw_affiliation_string":"Department of Electrical and Computer Engineering, National University of Singapore, Singapore","institution_ids":["https://openalex.org/I165932596"]},{"raw_affiliation_string":"[Dept. of Electr. & Comput. Eng., Nat. Univ. of Singapore, Singapore, Singapore]","institution_ids":["https://openalex.org/I165932596"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5083124337","display_name":"Pooi\u2010Yuen Kam","orcid":"https://orcid.org/0000-0001-5543-5034"},"institutions":[{"id":"https://openalex.org/I165932596","display_name":"National University of Singapore","ror":"https://ror.org/01tgyzw49","country_code":"SG","type":"education","lineage":["https://openalex.org/I165932596"]}],"countries":["SG"],"is_corresponding":false,"raw_author_name":"Pooi Yuen Kam","raw_affiliation_strings":["Department of Electrical and Computer Engineering, National University of Singapore, Singapore","[Dept. of Electr. & Comput. Eng., Nat. Univ. of Singapore, Singapore, Singapore]"],"affiliations":[{"raw_affiliation_string":"Department of Electrical and Computer Engineering, National University of Singapore, Singapore","institution_ids":["https://openalex.org/I165932596"]},{"raw_affiliation_string":"[Dept. of Electr. & Comput. Eng., Nat. Univ. of Singapore, Singapore, Singapore]","institution_ids":["https://openalex.org/I165932596"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":2,"corresponding_author_ids":["https://openalex.org/A5008684838"],"corresponding_institution_ids":["https://openalex.org/I165932596"],"apc_list":null,"apc_paid":null,"fwci":0.3428,"has_fulltext":false,"cited_by_count":1,"citation_normalized_percentile":{"value":0.6267891,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":89,"max":94},"biblio":{"volume":"19","issue":null,"first_page":"1","last_page":"5"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11321","display_name":"Error Correcting Code Techniques","score":1.0,"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/T11321","display_name":"Error Correcting Code Techniques","score":1.0,"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":0.9997000098228455,"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/T10796","display_name":"Cooperative Communication and Network Coding","score":0.9979000091552734,"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/rayleigh-fading","display_name":"Rayleigh fading","score":0.7737435102462769},{"id":"https://openalex.org/keywords/phase-shift-keying","display_name":"Phase-shift keying","score":0.7226999998092651},{"id":"https://openalex.org/keywords/bit-error-rate","display_name":"Bit error rate","score":0.6865116357803345},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.5974083542823792},{"id":"https://openalex.org/keywords/low-density-parity-check-code","display_name":"Low-density parity-check code","score":0.5871196389198303},{"id":"https://openalex.org/keywords/fading","display_name":"Fading","score":0.5383134484291077},{"id":"https://openalex.org/keywords/robustness","display_name":"Robustness (evolution)","score":0.512724757194519},{"id":"https://openalex.org/keywords/decoding-methods","display_name":"Decoding methods","score":0.5014362335205078},{"id":"https://openalex.org/keywords/metric","display_name":"Metric (unit)","score":0.47207188606262207},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.4442669153213501},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.4276415705680847},{"id":"https://openalex.org/keywords/statistics","display_name":"Statistics","score":0.37412768602371216},{"id":"https://openalex.org/keywords/engineering","display_name":"Engineering","score":0.08025172352790833}],"concepts":[{"id":"https://openalex.org/C56985126","wikidata":"https://www.wikidata.org/wiki/Q854039","display_name":"Rayleigh fading","level":4,"score":0.7737435102462769},{"id":"https://openalex.org/C186378180","wikidata":"https://www.wikidata.org/wiki/Q4874866","display_name":"Phase-shift keying","level":4,"score":0.7226999998092651},{"id":"https://openalex.org/C56296756","wikidata":"https://www.wikidata.org/wiki/Q840922","display_name":"Bit error rate","level":3,"score":0.6865116357803345},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.5974083542823792},{"id":"https://openalex.org/C67692717","wikidata":"https://www.wikidata.org/wiki/Q187444","display_name":"Low-density parity-check code","level":3,"score":0.5871196389198303},{"id":"https://openalex.org/C81978471","wikidata":"https://www.wikidata.org/wiki/Q1196572","display_name":"Fading","level":3,"score":0.5383134484291077},{"id":"https://openalex.org/C63479239","wikidata":"https://www.wikidata.org/wiki/Q7353546","display_name":"Robustness (evolution)","level":3,"score":0.512724757194519},{"id":"https://openalex.org/C57273362","wikidata":"https://www.wikidata.org/wiki/Q576722","display_name":"Decoding methods","level":2,"score":0.5014362335205078},{"id":"https://openalex.org/C176217482","wikidata":"https://www.wikidata.org/wiki/Q860554","display_name":"Metric (unit)","level":2,"score":0.47207188606262207},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.4442669153213501},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.4276415705680847},{"id":"https://openalex.org/C105795698","wikidata":"https://www.wikidata.org/wiki/Q12483","display_name":"Statistics","level":1,"score":0.37412768602371216},{"id":"https://openalex.org/C127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","level":0,"score":0.08025172352790833},{"id":"https://openalex.org/C21547014","wikidata":"https://www.wikidata.org/wiki/Q1423657","display_name":"Operations management","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},{"id":"https://openalex.org/C55493867","wikidata":"https://www.wikidata.org/wiki/Q7094","display_name":"Biochemistry","level":1,"score":0.0},{"id":"https://openalex.org/C104317684","wikidata":"https://www.wikidata.org/wiki/Q7187","display_name":"Gene","level":2,"score":0.0}],"mesh":[],"locations_count":2,"locations":[{"id":"doi:10.1109/vetecf.2009.5378688","is_oa":false,"landing_page_url":"https://doi.org/10.1109/vetecf.2009.5378688","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2009 IEEE 70th Vehicular Technology Conference Fall","raw_type":"proceedings-article"},{"id":"pmh:oai:scholarbank.nus.edu.sg:10635/70823","is_oa":false,"landing_page_url":"http://scholarbank.nus.edu.sg/handle/10635/70823","pdf_url":null,"source":{"id":"https://openalex.org/S7407052290","display_name":"National University of Singapore","issn_l":null,"issn":[],"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":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"Scopus","raw_type":"Conference Paper"}],"best_oa_location":null,"sustainable_development_goals":[],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":18,"referenced_works":["https://openalex.org/W1667165204","https://openalex.org/W2056414370","https://openalex.org/W2117678538","https://openalex.org/W2128765501","https://openalex.org/W2135764410","https://openalex.org/W2139181954","https://openalex.org/W2141081933","https://openalex.org/W2141191255","https://openalex.org/W2143828312","https://openalex.org/W2148643041","https://openalex.org/W2149959899","https://openalex.org/W2156938362","https://openalex.org/W2169203300","https://openalex.org/W2169732368","https://openalex.org/W4256648168","https://openalex.org/W4300188436","https://openalex.org/W6678839936","https://openalex.org/W6680610172"],"related_works":["https://openalex.org/W2116044594","https://openalex.org/W2101999641","https://openalex.org/W1503152075","https://openalex.org/W301676527","https://openalex.org/W2052600062","https://openalex.org/W2124541664","https://openalex.org/W289296924","https://openalex.org/W2122920812","https://openalex.org/W2942696422","https://openalex.org/W2076148615"],"abstract_inverted_index":{"We":[0,40],"derive":[1],"the":[2,46,55,61,73],"exact":[3],"log-likelihood":[4],"ratio":[5,77],"(LLR)":[6],"for":[7,14,33],"iterative":[8],"decoding":[9],"of":[10,28,75],"low-density":[11],"parity-check":[12],"codes":[13],"pilot-symbol-assisted":[15],"BPSK":[16],"transmission":[17],"over":[18],"flat":[19],"Rayleigh":[20],"fading":[21],"channels.":[22],"The":[23],"bit-error":[24],"rate":[25],"(BER)":[26],"performances":[27],"this":[29,43],"metric":[30,44,65],"are":[31],"studied":[32],"various":[34],"interleavers":[35],"and":[36,82],"different":[37],"pilot":[38],"spacings.":[39],"further":[41],"compare":[42],"with":[45],"approximate":[47],"metric,":[48],"which":[49],"has":[50],"been":[51],"commonly":[52],"used":[53],"in":[54,67],"literature.":[56],"Simulation":[57],"results":[58,66],"show":[59],"that":[60],"newly":[62],"derived":[63],"LLR":[64,85],"better":[68],"BER":[69],"performances.":[70],"In":[71],"addition,":[72],"effect":[74],"signal-to-noise":[76],"estimation":[78],"error":[79],"is":[80],"investigated":[81],"our":[83],"new":[84],"shows":[86],"more":[87],"robustness.":[88]},"counts_by_year":[{"year":2012,"cited_by_count":1}],"updated_date":"2025-11-06T03:46:38.306776","created_date":"2025-10-10T00:00:00"}
