{"id":"https://openalex.org/W2141830529","doi":"https://doi.org/10.1109/isit.2010.5513400","title":"New bounds for the sum capacity of binary and nonbinary synchronous CDMA systems","display_name":"New bounds for the sum capacity of binary and nonbinary synchronous CDMA systems","publication_year":2010,"publication_date":"2010-06-01","ids":{"openalex":"https://openalex.org/W2141830529","doi":"https://doi.org/10.1109/isit.2010.5513400","mag":"2141830529"},"language":"en","primary_location":{"id":"doi:10.1109/isit.2010.5513400","is_oa":false,"landing_page_url":"https://doi.org/10.1109/isit.2010.5513400","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2010 IEEE International Symposium on Information Theory","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/A5000012242","display_name":"S. Dashmiz","orcid":null},"institutions":[{"id":"https://openalex.org/I133529467","display_name":"Sharif University of Technology","ror":"https://ror.org/024c2fq17","country_code":"IR","type":"education","lineage":["https://openalex.org/I133529467"]}],"countries":["IR"],"is_corresponding":true,"raw_author_name":"Sh. Dashmiz","raw_affiliation_strings":["Advanced Communications Research Institute (ACRI), Sharif University of Technology, Tehran, Iran","Advanced Communications Research Institute (ACRI), Department of Electrical Engineering, Sharif University of Technology, Tehran, Iran#TAB#"],"affiliations":[{"raw_affiliation_string":"Advanced Communications Research Institute (ACRI), Sharif University of Technology, Tehran, Iran","institution_ids":["https://openalex.org/I133529467"]},{"raw_affiliation_string":"Advanced Communications Research Institute (ACRI), Department of Electrical Engineering, Sharif University of Technology, Tehran, Iran#TAB#","institution_ids":["https://openalex.org/I133529467"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5065126367","display_name":"Mohammad Reza Takapoui","orcid":null},"institutions":[{"id":"https://openalex.org/I133529467","display_name":"Sharif University of Technology","ror":"https://ror.org/024c2fq17","country_code":"IR","type":"education","lineage":["https://openalex.org/I133529467"]}],"countries":["IR"],"is_corresponding":false,"raw_author_name":"M. R. Takapoui","raw_affiliation_strings":["Advanced Communications Research Institute (ACRI), Sharif University of Technology, Tehran, Iran","Advanced Communications Research Institute (ACRI), Department of Electrical Engineering, Sharif University of Technology, Tehran, Iran#TAB#"],"affiliations":[{"raw_affiliation_string":"Advanced Communications Research Institute (ACRI), Sharif University of Technology, Tehran, Iran","institution_ids":["https://openalex.org/I133529467"]},{"raw_affiliation_string":"Advanced Communications Research Institute (ACRI), Department of Electrical Engineering, Sharif University of Technology, Tehran, Iran#TAB#","institution_ids":["https://openalex.org/I133529467"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5060929936","display_name":"Pedram Pad","orcid":"https://orcid.org/0000-0001-7764-2800"},"institutions":[{"id":"https://openalex.org/I133529467","display_name":"Sharif University of Technology","ror":"https://ror.org/024c2fq17","country_code":"IR","type":"education","lineage":["https://openalex.org/I133529467"]}],"countries":["IR"],"is_corresponding":false,"raw_author_name":"P. Pad","raw_affiliation_strings":["Advanced Communications Research Institute (ACRI), Sharif University of Technology, Tehran, Iran","Advanced Communications Research Institute (ACRI), Department of Electrical Engineering, Sharif University of Technology, Tehran, Iran#TAB#"],"affiliations":[{"raw_affiliation_string":"Advanced Communications Research Institute (ACRI), Sharif University of Technology, Tehran, Iran","institution_ids":["https://openalex.org/I133529467"]},{"raw_affiliation_string":"Advanced Communications Research Institute (ACRI), Department of Electrical Engineering, Sharif University of Technology, Tehran, Iran#TAB#","institution_ids":["https://openalex.org/I133529467"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5069159448","display_name":"Farokh Marvasti","orcid":"https://orcid.org/0000-0002-4635-8986"},"institutions":[{"id":"https://openalex.org/I133529467","display_name":"Sharif University of Technology","ror":"https://ror.org/024c2fq17","country_code":"IR","type":"education","lineage":["https://openalex.org/I133529467"]}],"countries":["IR"],"is_corresponding":false,"raw_author_name":"F. Marvasti","raw_affiliation_strings":["Advanced Communications Research Institute (ACRI), Sharif University of Technology, Tehran, Iran","Advanced Communications Research Institute (ACRI), Department of Electrical Engineering, Sharif University of Technology, Tehran, Iran#TAB#"],"affiliations":[{"raw_affiliation_string":"Advanced Communications Research Institute (ACRI), Sharif University of Technology, Tehran, Iran","institution_ids":["https://openalex.org/I133529467"]},{"raw_affiliation_string":"Advanced Communications Research Institute (ACRI), Department of Electrical Engineering, Sharif University of Technology, Tehran, Iran#TAB#","institution_ids":["https://openalex.org/I133529467"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":4,"corresponding_author_ids":["https://openalex.org/A5000012242"],"corresponding_institution_ids":["https://openalex.org/I133529467"],"apc_list":null,"apc_paid":null,"fwci":2.1367,"has_fulltext":false,"cited_by_count":6,"citation_normalized_percentile":{"value":0.8855567,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":89,"max":94},"biblio":{"volume":null,"issue":null,"first_page":"2093","last_page":"2097"},"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":0.9994000196456909,"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/T11797","display_name":"graph theory and CDMA systems","score":0.9984999895095825,"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/binary-number","display_name":"Binary number","score":0.7376591563224792},{"id":"https://openalex.org/keywords/signature","display_name":"Signature (topology)","score":0.6653183698654175},{"id":"https://openalex.org/keywords/code-division-multiple-access","display_name":"Code division multiple access","score":0.653380274772644},{"id":"https://openalex.org/keywords/upper-and-lower-bounds","display_name":"Upper and lower bounds","score":0.6445364952087402},{"id":"https://openalex.org/keywords/synchronous-cdma","display_name":"Synchronous CDMA","score":0.615542471408844},{"id":"https://openalex.org/keywords/noise","display_name":"Noise (video)","score":0.5389580726623535},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.5289440155029297},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.4808981418609619},{"id":"https://openalex.org/keywords/matrix","display_name":"Matrix (chemical analysis)","score":0.4706871807575226},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.4434789717197418},{"id":"https://openalex.org/keywords/theoretical-computer-science","display_name":"Theoretical computer science","score":0.3450163006782532},{"id":"https://openalex.org/keywords/discrete-mathematics","display_name":"Discrete mathematics","score":0.34105056524276733},{"id":"https://openalex.org/keywords/telecommunications","display_name":"Telecommunications","score":0.20669883489608765},{"id":"https://openalex.org/keywords/arithmetic","display_name":"Arithmetic","score":0.1245151162147522},{"id":"https://openalex.org/keywords/multiuser-detection","display_name":"Multiuser detection","score":0.11846810579299927},{"id":"https://openalex.org/keywords/mathematical-analysis","display_name":"Mathematical analysis","score":0.08178532123565674}],"concepts":[{"id":"https://openalex.org/C48372109","wikidata":"https://www.wikidata.org/wiki/Q3913","display_name":"Binary number","level":2,"score":0.7376591563224792},{"id":"https://openalex.org/C2779696439","wikidata":"https://www.wikidata.org/wiki/Q7512811","display_name":"Signature (topology)","level":2,"score":0.6653183698654175},{"id":"https://openalex.org/C47696715","wikidata":"https://www.wikidata.org/wiki/Q233394","display_name":"Code division multiple access","level":2,"score":0.653380274772644},{"id":"https://openalex.org/C77553402","wikidata":"https://www.wikidata.org/wiki/Q13222579","display_name":"Upper and lower bounds","level":2,"score":0.6445364952087402},{"id":"https://openalex.org/C2776153050","wikidata":"https://www.wikidata.org/wiki/Q233394","display_name":"Synchronous CDMA","level":4,"score":0.615542471408844},{"id":"https://openalex.org/C99498987","wikidata":"https://www.wikidata.org/wiki/Q2210247","display_name":"Noise (video)","level":3,"score":0.5389580726623535},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.5289440155029297},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.4808981418609619},{"id":"https://openalex.org/C106487976","wikidata":"https://www.wikidata.org/wiki/Q685816","display_name":"Matrix (chemical analysis)","level":2,"score":0.4706871807575226},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.4434789717197418},{"id":"https://openalex.org/C80444323","wikidata":"https://www.wikidata.org/wiki/Q2878974","display_name":"Theoretical computer science","level":1,"score":0.3450163006782532},{"id":"https://openalex.org/C118615104","wikidata":"https://www.wikidata.org/wiki/Q121416","display_name":"Discrete mathematics","level":1,"score":0.34105056524276733},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.20669883489608765},{"id":"https://openalex.org/C94375191","wikidata":"https://www.wikidata.org/wiki/Q11205","display_name":"Arithmetic","level":1,"score":0.1245151162147522},{"id":"https://openalex.org/C2777104032","wikidata":"https://www.wikidata.org/wiki/Q16324514","display_name":"Multiuser detection","level":3,"score":0.11846810579299927},{"id":"https://openalex.org/C134306372","wikidata":"https://www.wikidata.org/wiki/Q7754","display_name":"Mathematical analysis","level":1,"score":0.08178532123565674},{"id":"https://openalex.org/C115961682","wikidata":"https://www.wikidata.org/wiki/Q860623","display_name":"Image (mathematics)","level":2,"score":0.0},{"id":"https://openalex.org/C159985019","wikidata":"https://www.wikidata.org/wiki/Q181790","display_name":"Composite material","level":1,"score":0.0},{"id":"https://openalex.org/C192562407","wikidata":"https://www.wikidata.org/wiki/Q228736","display_name":"Materials science","level":0,"score":0.0},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.0},{"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/isit.2010.5513400","is_oa":false,"landing_page_url":"https://doi.org/10.1109/isit.2010.5513400","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2010 IEEE International Symposium on Information Theory","raw_type":"proceedings-article"}],"best_oa_location":null,"sustainable_development_goals":[{"id":"https://metadata.un.org/sdg/4","display_name":"Quality Education","score":0.5299999713897705}],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":13,"referenced_works":["https://openalex.org/W2003010976","https://openalex.org/W2027058183","https://openalex.org/W2081825044","https://openalex.org/W2101435685","https://openalex.org/W2116394223","https://openalex.org/W2123074269","https://openalex.org/W2124302774","https://openalex.org/W2138358551","https://openalex.org/W2143917799","https://openalex.org/W2167783913","https://openalex.org/W2169755672","https://openalex.org/W3099802036","https://openalex.org/W6675278643"],"related_works":["https://openalex.org/W1481522355","https://openalex.org/W2017059721","https://openalex.org/W2545453103","https://openalex.org/W2121562691","https://openalex.org/W2088081378","https://openalex.org/W2145664732","https://openalex.org/W1898386035","https://openalex.org/W2107473859","https://openalex.org/W2169339380","https://openalex.org/W1565373710"],"abstract_inverted_index":{"Lower":[0],"and":[1,17,31],"upper":[2],"bounds":[3,35],"are":[4,20,36],"derived":[5],"for":[6,48,55,91],"the":[7,14,46,53,70,78,81],"sum":[8],"capacity":[9],"of":[10,29,80,83],"synchronous":[11],"CDMA":[12],"where":[13],"signature":[15],"matrix":[16],"input":[18],"alphabets":[19],"binary":[21],"or":[22],"(2p":[23],"+":[24],"1)-ary,":[25],"in":[26,39,85],"two":[27],"cases":[28],"noiseless":[30,56],"noisy":[32,49],"channels.":[33],"The":[34,72],"very":[37],"tight":[38],"some":[40],"regions.":[41],"Interestingly,":[42],"simulations":[43],"show":[44],"that":[45],"formulas":[47],"systems":[50],"tend":[51],"to":[52,61],"ones":[54],"system":[57,93],"as":[58],"noise":[59],"tends":[60],"0":[62],"while":[63],"it":[64],"cannot":[65],"be":[66],"deduced":[67],"easily":[68],"from":[69],"formulas.":[71],"results":[73],"give":[74],"good":[75],"insights":[76],"about":[77],"extent":[79],"number":[82],"users":[84],"which":[86],"errorless":[87],"communication":[88],"is":[89],"possible":[90],"a":[92,95],"with":[94],"given":[96],"chip":[97],"rate.":[98]},"counts_by_year":[{"year":2013,"cited_by_count":1}],"updated_date":"2025-11-06T03:46:38.306776","created_date":"2025-10-10T00:00:00"}
