{"id":"https://openalex.org/W7123350275","doi":"https://doi.org/10.1109/lcomm.2026.3653195","title":"A Low-Complexity Carrier Phase Recovery Architecture Using Prefix-Sum and CT-MLE for Coherent Receivers","display_name":"A Low-Complexity Carrier Phase Recovery Architecture Using Prefix-Sum and CT-MLE for Coherent Receivers","publication_year":2026,"publication_date":"2026-01-01","ids":{"openalex":"https://openalex.org/W7123350275","doi":"https://doi.org/10.1109/lcomm.2026.3653195"},"language":null,"primary_location":{"id":"doi:10.1109/lcomm.2026.3653195","is_oa":false,"landing_page_url":"https://doi.org/10.1109/lcomm.2026.3653195","pdf_url":null,"source":{"id":"https://openalex.org/S147316732","display_name":"IEEE Communications Letters","issn_l":"1089-7798","issn":["1089-7798","1558-2558","2373-7891"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310316002","host_organization_name":"IEEE Communications Society","host_organization_lineage":["https://openalex.org/P4310316002","https://openalex.org/P4310319808"],"host_organization_lineage_names":["IEEE Communications Society","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 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":null,"display_name":"Jianghao Wu","orcid":"https://orcid.org/0000-0003-1801-9968"},"institutions":[{"id":"https://openalex.org/I24943067","display_name":"Fudan University","ror":"https://ror.org/013q1eq08","country_code":"CN","type":"education","lineage":["https://openalex.org/I24943067"]}],"countries":["CN"],"is_corresponding":true,"raw_author_name":"Jianghao Wu","raw_affiliation_strings":["State Key Laboratory of Integrated Chips and Systems, College of Integrated Circuits and Micro-Nano Electronics, Fudan University, Shanghai, China"],"raw_orcid":"https://orcid.org/0000-0003-1801-9968","affiliations":[{"raw_affiliation_string":"State Key Laboratory of Integrated Chips and Systems, College of Integrated Circuits and Micro-Nano Electronics, Fudan University, Shanghai, China","institution_ids":["https://openalex.org/I24943067"]}]},{"author_position":"middle","author":{"id":null,"display_name":"Xinyang Wu","orcid":"https://orcid.org/0009-0008-2251-3890"},"institutions":[{"id":"https://openalex.org/I24943067","display_name":"Fudan University","ror":"https://ror.org/013q1eq08","country_code":"CN","type":"education","lineage":["https://openalex.org/I24943067"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Xinyang Wu","raw_affiliation_strings":["State Key Laboratory of Integrated Chips and Systems, College of Integrated Circuits and Micro-Nano Electronics, Fudan University, Shanghai, China"],"raw_orcid":"https://orcid.org/0009-0008-2251-3890","affiliations":[{"raw_affiliation_string":"State Key Laboratory of Integrated Chips and Systems, College of Integrated Circuits and Micro-Nano Electronics, Fudan University, Shanghai, China","institution_ids":["https://openalex.org/I24943067"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5103384823","display_name":"H. Y. Cao","orcid":null},"institutions":[{"id":"https://openalex.org/I24943067","display_name":"Fudan University","ror":"https://ror.org/013q1eq08","country_code":"CN","type":"education","lineage":["https://openalex.org/I24943067"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Huijun Cao","raw_affiliation_strings":["State Key Laboratory of Integrated Chips and Systems, College of Integrated Circuits and Micro-Nano Electronics, Fudan University, Shanghai, China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"State Key Laboratory of Integrated Chips and Systems, College of Integrated Circuits and Micro-Nano Electronics, Fudan University, Shanghai, China","institution_ids":["https://openalex.org/I24943067"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5122843370","display_name":"Jingwei Zhu","orcid":null},"institutions":[{"id":"https://openalex.org/I24943067","display_name":"Fudan University","ror":"https://ror.org/013q1eq08","country_code":"CN","type":"education","lineage":["https://openalex.org/I24943067"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Jingwei Zhu","raw_affiliation_strings":["State Key Laboratory of Integrated Chips and Systems, College of Integrated Circuits and Micro-Nano Electronics, Fudan University, Shanghai, China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"State Key Laboratory of Integrated Chips and Systems, College of Integrated Circuits and Micro-Nano Electronics, Fudan University, Shanghai, China","institution_ids":["https://openalex.org/I24943067"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":4,"corresponding_author_ids":[],"corresponding_institution_ids":["https://openalex.org/I24943067"],"apc_list":null,"apc_paid":null,"fwci":0.0,"has_fulltext":false,"cited_by_count":0,"citation_normalized_percentile":{"value":0.06967775,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":null,"biblio":{"volume":"30","issue":null,"first_page":"872","last_page":"876"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10232","display_name":"Optical Network Technologies","score":0.7675999999046326,"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/T10232","display_name":"Optical Network Technologies","score":0.7675999999046326,"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/T11417","display_name":"Advancements in PLL and VCO Technologies","score":0.0406000018119812,"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/T10988","display_name":"Advanced Fiber Laser Technologies","score":0.021800000220537186,"subfield":{"id":"https://openalex.org/subfields/3107","display_name":"Atomic and Molecular Physics, and Optics"},"field":{"id":"https://openalex.org/fields/31","display_name":"Physics and Astronomy"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/carrier-recovery","display_name":"Carrier recovery","score":0.6947000026702881},{"id":"https://openalex.org/keywords/cmos","display_name":"CMOS","score":0.4853000044822693},{"id":"https://openalex.org/keywords/estimator","display_name":"Estimator","score":0.47589999437332153},{"id":"https://openalex.org/keywords/quadrature","display_name":"Quadrature (astronomy)","score":0.4383000135421753},{"id":"https://openalex.org/keywords/signal-processing","display_name":"Signal processing","score":0.4212999939918518},{"id":"https://openalex.org/keywords/quadrature-amplitude-modulation","display_name":"Quadrature amplitude modulation","score":0.4187000095844269},{"id":"https://openalex.org/keywords/signal-to-noise-ratio","display_name":"Signal-to-noise ratio (imaging)","score":0.41269999742507935},{"id":"https://openalex.org/keywords/phase","display_name":"Phase (matter)","score":0.4115000069141388},{"id":"https://openalex.org/keywords/power","display_name":"Power (physics)","score":0.3921999931335449},{"id":"https://openalex.org/keywords/amplitude","display_name":"Amplitude","score":0.3919000029563904}],"concepts":[{"id":"https://openalex.org/C17877974","wikidata":"https://www.wikidata.org/wiki/Q2375705","display_name":"Carrier recovery","level":4,"score":0.6947000026702881},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.6863999962806702},{"id":"https://openalex.org/C24326235","wikidata":"https://www.wikidata.org/wiki/Q126095","display_name":"Electronic engineering","level":1,"score":0.5485000014305115},{"id":"https://openalex.org/C46362747","wikidata":"https://www.wikidata.org/wiki/Q173431","display_name":"CMOS","level":2,"score":0.4853000044822693},{"id":"https://openalex.org/C185429906","wikidata":"https://www.wikidata.org/wiki/Q1130160","display_name":"Estimator","level":2,"score":0.47589999437332153},{"id":"https://openalex.org/C62869609","wikidata":"https://www.wikidata.org/wiki/Q28137","display_name":"Quadrature (astronomy)","level":2,"score":0.4383000135421753},{"id":"https://openalex.org/C104267543","wikidata":"https://www.wikidata.org/wiki/Q208163","display_name":"Signal processing","level":3,"score":0.4212999939918518},{"id":"https://openalex.org/C32409245","wikidata":"https://www.wikidata.org/wiki/Q749753","display_name":"Quadrature amplitude modulation","level":4,"score":0.4187000095844269},{"id":"https://openalex.org/C13944312","wikidata":"https://www.wikidata.org/wiki/Q7512748","display_name":"Signal-to-noise ratio (imaging)","level":2,"score":0.41269999742507935},{"id":"https://openalex.org/C44280652","wikidata":"https://www.wikidata.org/wiki/Q104837","display_name":"Phase (matter)","level":2,"score":0.4115000069141388},{"id":"https://openalex.org/C163258240","wikidata":"https://www.wikidata.org/wiki/Q25342","display_name":"Power (physics)","level":2,"score":0.3921999931335449},{"id":"https://openalex.org/C180205008","wikidata":"https://www.wikidata.org/wiki/Q159190","display_name":"Amplitude","level":2,"score":0.3919000029563904},{"id":"https://openalex.org/C129404179","wikidata":"https://www.wikidata.org/wiki/Q1469765","display_name":"Optical communication","level":2,"score":0.37689998745918274},{"id":"https://openalex.org/C89631360","wikidata":"https://www.wikidata.org/wiki/Q1428766","display_name":"Phase noise","level":2,"score":0.3614000082015991},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.3506999909877777},{"id":"https://openalex.org/C2989281035","wikidata":"https://www.wikidata.org/wiki/Q120811","display_name":"Signal recovery","level":3,"score":0.34389999508857727},{"id":"https://openalex.org/C96834759","wikidata":"https://www.wikidata.org/wiki/Q750463","display_name":"Phase modulation","level":3,"score":0.33739998936653137},{"id":"https://openalex.org/C32022120","wikidata":"https://www.wikidata.org/wiki/Q797225","display_name":"Interference (communication)","level":3,"score":0.3296000063419342},{"id":"https://openalex.org/C123657996","wikidata":"https://www.wikidata.org/wiki/Q12271","display_name":"Architecture","level":2,"score":0.3224000036716461},{"id":"https://openalex.org/C49781872","wikidata":"https://www.wikidata.org/wiki/Q1045555","display_name":"Maximum likelihood","level":2,"score":0.3163999915122986},{"id":"https://openalex.org/C127162648","wikidata":"https://www.wikidata.org/wiki/Q16858953","display_name":"Channel (broadcasting)","level":2,"score":0.3158000111579895},{"id":"https://openalex.org/C14580979","wikidata":"https://www.wikidata.org/wiki/Q876049","display_name":"Very-large-scale integration","level":2,"score":0.3118000030517578},{"id":"https://openalex.org/C134400042","wikidata":"https://www.wikidata.org/wiki/Q2372244","display_name":"Symbol (formal)","level":2,"score":0.3012000024318695},{"id":"https://openalex.org/C2779843651","wikidata":"https://www.wikidata.org/wiki/Q7390335","display_name":"SIGNAL (programming language)","level":2,"score":0.3009999990463257},{"id":"https://openalex.org/C9390403","wikidata":"https://www.wikidata.org/wiki/Q3966","display_name":"Computer hardware","level":1,"score":0.3001999855041504},{"id":"https://openalex.org/C2777210771","wikidata":"https://www.wikidata.org/wiki/Q4927124","display_name":"Block (permutation group theory)","level":2,"score":0.29429998993873596},{"id":"https://openalex.org/C58102789","wikidata":"https://www.wikidata.org/wiki/Q17105111","display_name":"Optical transistor","level":4,"score":0.2937999963760376},{"id":"https://openalex.org/C2780894989","wikidata":"https://www.wikidata.org/wiki/Q7209150","display_name":"Polarization-division multiplexing","level":4,"score":0.2919999957084656},{"id":"https://openalex.org/C59030546","wikidata":"https://www.wikidata.org/wiki/Q7265371","display_name":"QAM","level":5,"score":0.28790000081062317},{"id":"https://openalex.org/C186378180","wikidata":"https://www.wikidata.org/wiki/Q4874866","display_name":"Phase-shift keying","level":4,"score":0.2849000096321106},{"id":"https://openalex.org/C157764524","wikidata":"https://www.wikidata.org/wiki/Q1383412","display_name":"Throughput","level":3,"score":0.2797999978065491},{"id":"https://openalex.org/C20518276","wikidata":"https://www.wikidata.org/wiki/Q186130","display_name":"Pulse-amplitude modulation","level":4,"score":0.27459999918937683},{"id":"https://openalex.org/C3866505","wikidata":"https://www.wikidata.org/wiki/Q3935725","display_name":"Optical communications repeater","level":5,"score":0.2728999853134155},{"id":"https://openalex.org/C19275194","wikidata":"https://www.wikidata.org/wiki/Q222903","display_name":"Multiplexing","level":2,"score":0.2727999985218048},{"id":"https://openalex.org/C79403827","wikidata":"https://www.wikidata.org/wiki/Q3988","display_name":"Real-time computing","level":1,"score":0.2721000015735626},{"id":"https://openalex.org/C26840048","wikidata":"https://www.wikidata.org/wiki/Q7098880","display_name":"Optical performance monitoring","level":4,"score":0.271699994802475},{"id":"https://openalex.org/C165696696","wikidata":"https://www.wikidata.org/wiki/Q11287","display_name":"Exploit","level":2,"score":0.2619999945163727},{"id":"https://openalex.org/C110086884","wikidata":"https://www.wikidata.org/wiki/Q2085341","display_name":"Phase detector","level":3,"score":0.2572000026702881},{"id":"https://openalex.org/C118993495","wikidata":"https://www.wikidata.org/wiki/Q5042828","display_name":"Electrical efficiency","level":3,"score":0.2556000053882599},{"id":"https://openalex.org/C194232370","wikidata":"https://www.wikidata.org/wiki/Q162","display_name":"Optical fiber","level":2,"score":0.2549999952316284}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/lcomm.2026.3653195","is_oa":false,"landing_page_url":"https://doi.org/10.1109/lcomm.2026.3653195","pdf_url":null,"source":{"id":"https://openalex.org/S147316732","display_name":"IEEE Communications Letters","issn_l":"1089-7798","issn":["1089-7798","1558-2558","2373-7891"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310316002","host_organization_name":"IEEE Communications Society","host_organization_lineage":["https://openalex.org/P4310316002","https://openalex.org/P4310319808"],"host_organization_lineage_names":["IEEE Communications Society","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 Communications Letters","raw_type":"journal-article"}],"best_oa_location":null,"sustainable_development_goals":[],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":10,"referenced_works":["https://openalex.org/W1967011798","https://openalex.org/W2033160015","https://openalex.org/W2070793330","https://openalex.org/W2129940694","https://openalex.org/W2143462372","https://openalex.org/W2331595530","https://openalex.org/W3008163172","https://openalex.org/W3089799209","https://openalex.org/W4389371413","https://openalex.org/W4400467968"],"related_works":[],"abstract_inverted_index":{"Hardware-efficient":[0],"carrier":[1],"phase":[2],"recovery":[3],"(CPR)":[4],"is":[5],"critical":[6],"for":[7,69],"coherent":[8],"optical":[9],"systems":[10],"employing":[11],"high-order":[12],"quadrature":[13],"amplitude":[14],"modulation.":[15],"This":[16],"letter":[17],"proposes":[18],"a":[19,27,54,87],"low-parallelism":[20],"and":[21,81],"low-complexity":[22],"CPR":[23,75],"architecture.":[24],"It":[25],"introduces":[26],"parallel":[28],"prefix-sum":[29],"engine":[30],"that":[31],"exploits":[32],"the":[33,36,40,51,73],"sparsity":[34],"of":[35],"symbol":[37],"distribution,":[38],"enabling":[39],"hardware":[41],"parallelism":[42],"to":[43,59,86],"be":[44],"significantly":[45],"reduced":[46],"without":[47],"information":[48],"loss.":[49],"Furthermore,":[50],"architecture":[52],"features":[53],"multiplication-free":[55],"maximum":[56],"likelihood":[57],"estimation":[58],"reduce":[60],"intrinsic":[61],"computational":[62],"complexity.":[63],"Implemented":[64],"in":[65],"28":[66],"nm":[67],"CMOS":[68],"32":[70],"GBaud":[71],"system,":[72],"proposed":[74],"estimator":[76],"reduces":[77],"area":[78],"by":[79,83],"51%":[80],"power":[82],"39%":[84],"compared":[85],"conventional":[88],"mVV-CT-VV":[89],"baseline,":[90],"achieving":[91],"state-of-the-art":[92],"efficiencies":[93],"with":[94],"only":[95],"0.37":[96],"dB":[97],"signal-to-noise":[98],"ratio":[99],"penalty.":[100]},"counts_by_year":[],"updated_date":"2026-01-19T04:01:09.351973","created_date":"2026-01-14T00:00:00"}