{"id":"https://openalex.org/W7127601126","doi":"https://doi.org/10.48550/arxiv.2602.02508","title":"Precoding-Oriented CSI Feedback Design with Mutual Information Regularized VQ-VAE","display_name":"Precoding-Oriented CSI Feedback Design with Mutual Information Regularized VQ-VAE","publication_year":2026,"publication_date":"2026-01-22","ids":{"openalex":"https://openalex.org/W7127601126","doi":"https://doi.org/10.48550/arxiv.2602.02508"},"language":null,"primary_location":{"id":"pmh:doi:10.48550/arxiv.2602.02508","is_oa":true,"landing_page_url":null,"pdf_url":null,"source":{"id":"https://openalex.org/S4406922384","display_name":"Open MIND","issn_l":null,"issn":null,"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":null,"raw_type":"Article"},"type":"article","indexed_in":["datacite"],"open_access":{"is_oa":true,"oa_status":"green","oa_url":null,"any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5125025945","display_name":"Xi Chen","orcid":null},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Chen, Xi","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]},{"author_position":"middle","author":{"id":"https://openalex.org/A5010743882","display_name":"Homa Esfahanizadeh","orcid":"https://orcid.org/0000-0003-1217-692X"},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Esfahanizadeh, Homa","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]},{"author_position":"last","author":{"id":"https://openalex.org/A5025609694","display_name":"Foad Sohrabi","orcid":"https://orcid.org/0000-0002-7514-2578"},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Sohrabi, Foad","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]}],"institutions":[],"countries_distinct_count":0,"institutions_distinct_count":0,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":0.0,"has_fulltext":false,"cited_by_count":0,"citation_normalized_percentile":{"value":0.10127013,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":null,"biblio":{"volume":null,"issue":null,"first_page":null,"last_page":null},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10125","display_name":"Advanced Wireless Communication Techniques","score":0.44760000705718994,"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/T10125","display_name":"Advanced Wireless Communication Techniques","score":0.44760000705718994,"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/T10148","display_name":"Advanced MIMO Systems Optimization","score":0.2743000090122223,"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/T12131","display_name":"Wireless Signal Modulation Classification","score":0.07829999923706055,"subfield":{"id":"https://openalex.org/subfields/1702","display_name":"Artificial Intelligence"},"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/codebook","display_name":"Codebook","score":0.8665000200271606},{"id":"https://openalex.org/keywords/channel-state-information","display_name":"Channel state information","score":0.7626000046730042},{"id":"https://openalex.org/keywords/mutual-information","display_name":"Mutual information","score":0.7253000140190125},{"id":"https://openalex.org/keywords/key","display_name":"Key (lock)","score":0.6399000287055969},{"id":"https://openalex.org/keywords/overhead","display_name":"Overhead (engineering)","score":0.5038999915122986},{"id":"https://openalex.org/keywords/channel","display_name":"Channel (broadcasting)","score":0.4880000054836273},{"id":"https://openalex.org/keywords/estimator","display_name":"Estimator","score":0.46129998564720154},{"id":"https://openalex.org/keywords/control-theory","display_name":"Control theory (sociology)","score":0.4560999870300293},{"id":"https://openalex.org/keywords/telecommunications-link","display_name":"Telecommunications link","score":0.4230000078678131}],"concepts":[{"id":"https://openalex.org/C127759330","wikidata":"https://www.wikidata.org/wiki/Q637416","display_name":"Codebook","level":2,"score":0.8665000200271606},{"id":"https://openalex.org/C148063708","wikidata":"https://www.wikidata.org/wiki/Q5072511","display_name":"Channel state information","level":3,"score":0.7626000046730042},{"id":"https://openalex.org/C152139883","wikidata":"https://www.wikidata.org/wiki/Q252973","display_name":"Mutual information","level":2,"score":0.7253000140190125},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.6926000118255615},{"id":"https://openalex.org/C26517878","wikidata":"https://www.wikidata.org/wiki/Q228039","display_name":"Key (lock)","level":2,"score":0.6399000287055969},{"id":"https://openalex.org/C2779960059","wikidata":"https://www.wikidata.org/wiki/Q7113681","display_name":"Overhead (engineering)","level":2,"score":0.5038999915122986},{"id":"https://openalex.org/C127162648","wikidata":"https://www.wikidata.org/wiki/Q16858953","display_name":"Channel (broadcasting)","level":2,"score":0.4880000054836273},{"id":"https://openalex.org/C185429906","wikidata":"https://www.wikidata.org/wiki/Q1130160","display_name":"Estimator","level":2,"score":0.46129998564720154},{"id":"https://openalex.org/C47446073","wikidata":"https://www.wikidata.org/wiki/Q5165890","display_name":"Control theory (sociology)","level":3,"score":0.4560999870300293},{"id":"https://openalex.org/C138660444","wikidata":"https://www.wikidata.org/wiki/Q5607897","display_name":"Telecommunications link","level":2,"score":0.4230000078678131},{"id":"https://openalex.org/C48103436","wikidata":"https://www.wikidata.org/wiki/Q599031","display_name":"State (computer science)","level":2,"score":0.3910999894142151},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.3855000138282776},{"id":"https://openalex.org/C60008888","wikidata":"https://www.wikidata.org/wiki/Q6031013","display_name":"Information bottleneck method","level":3,"score":0.35359999537467957},{"id":"https://openalex.org/C2985963534","wikidata":"https://www.wikidata.org/wiki/Q7603704","display_name":"State information","level":3,"score":0.34630000591278076},{"id":"https://openalex.org/C55439883","wikidata":"https://www.wikidata.org/wiki/Q360812","display_name":"Correctness","level":2,"score":0.3312000036239624},{"id":"https://openalex.org/C2779136372","wikidata":"https://www.wikidata.org/wiki/Q10283002","display_name":"Information flow","level":2,"score":0.3199000060558319},{"id":"https://openalex.org/C78548338","wikidata":"https://www.wikidata.org/wiki/Q2493","display_name":"Data compression","level":2,"score":0.310699999332428},{"id":"https://openalex.org/C202615002","wikidata":"https://www.wikidata.org/wiki/Q783507","display_name":"Differentiable function","level":2,"score":0.2971999943256378},{"id":"https://openalex.org/C28855332","wikidata":"https://www.wikidata.org/wiki/Q198099","display_name":"Quantization (signal processing)","level":2,"score":0.28790000081062317},{"id":"https://openalex.org/C2777303404","wikidata":"https://www.wikidata.org/wiki/Q759757","display_name":"Convergence (economics)","level":2,"score":0.28630000352859497},{"id":"https://openalex.org/C180016635","wikidata":"https://www.wikidata.org/wiki/Q2712821","display_name":"Compression (physics)","level":2,"score":0.28119999170303345},{"id":"https://openalex.org/C126255220","wikidata":"https://www.wikidata.org/wiki/Q141495","display_name":"Mathematical optimization","level":1,"score":0.2599000036716461},{"id":"https://openalex.org/C48677424","wikidata":"https://www.wikidata.org/wiki/Q6888088","display_name":"Mode (computer interface)","level":2,"score":0.25099998712539673},{"id":"https://openalex.org/C147764199","wikidata":"https://www.wikidata.org/wiki/Q6865248","display_name":"Minification","level":2,"score":0.25}],"mesh":[],"locations_count":2,"locations":[{"id":"pmh:doi:10.48550/arxiv.2602.02508","is_oa":true,"landing_page_url":null,"pdf_url":null,"source":{"id":"https://openalex.org/S4406922384","display_name":"Open MIND","issn_l":null,"issn":null,"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":null,"raw_type":"Article"},{"id":"doi:10.48550/arxiv.2602.02508","is_oa":true,"landing_page_url":"https://doi.org/10.48550/arxiv.2602.02508","pdf_url":null,"source":{"id":"https://openalex.org/S4306400194","display_name":"arXiv (Cornell University)","issn_l":"2331-8422","issn":["2331-8422"],"is_oa":true,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I205783295","host_organization_name":"Cornell University","host_organization_lineage":["https://openalex.org/I205783295"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":null,"is_accepted":false,"is_published":null,"raw_source_name":null,"raw_type":"Preprint"}],"best_oa_location":{"id":"pmh:doi:10.48550/arxiv.2602.02508","is_oa":true,"landing_page_url":null,"pdf_url":null,"source":{"id":"https://openalex.org/S4406922384","display_name":"Open MIND","issn_l":null,"issn":null,"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":null,"raw_type":"Article"},"sustainable_development_goals":[],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":0,"referenced_works":[],"related_works":[],"abstract_inverted_index":{"Efficient":[0],"channel":[1,17,144],"state":[2,145],"information":[3,84],"(CSI)":[4],"compression":[5,117],"at":[6],"the":[7,33,38,44,96,108,125,142],"user":[8],"equipment":[9],"plays":[10],"a":[11,59,66,81,88,100],"key":[12,28],"role":[13],"in":[14,22,31],"enabling":[15],"accurate":[16],"reconstruction":[18],"and":[19,133],"precoder":[20],"design":[21],"massive":[23],"multiple-input":[24],"multiple-output":[25],"systems.":[26],"A":[27],"challenge":[29],"lies":[30],"balancing":[32],"CSI":[34,61],"feedback":[35,48,62,102],"overhead":[36],"with":[37,72,121,141],"achievable":[39],"downlink":[40],"rate,":[41],"i.e.,":[42],"maximizing":[43],"utility":[45],"of":[46,95],"limited":[47],"to":[49,91,114],"maintain":[50],"high":[51],"system":[52],"performance.":[53],"In":[54],"this":[55],"work,":[56],"we":[57,79],"propose":[58],"precoding-oriented":[60],"framework":[63],"based":[64],"on":[65],"vector":[67],"quantized":[68],"variational":[69],"autoencoder,":[70],"augmented":[71],"an":[73],"information-theoretic":[74],"regularization.":[75],"To":[76],"achieve":[77],"this,":[78],"introduce":[80],"differentiable":[82],"mutual":[83],"lower-bound":[85],"estimator":[86],"as":[87],"training":[89],"regularizer":[90],"promote":[92],"effective":[93],"utilization":[94],"learned":[97,126],"codebook":[98],"under":[99],"fixed":[101],"budget.":[103],"Numerical":[104],"results":[105],"demonstrate":[106],"that":[107,137],"proposed":[109],"method":[110],"achieves":[111],"rates":[112],"comparable":[113],"variable-length":[115],"neural":[116],"schemes,":[118],"while":[119],"operating":[120],"fixed-length":[122],"feedback.":[123],"Furthermore,":[124],"codewords":[127],"exhibit":[128],"significantly":[129],"more":[130],"uniform":[131],"usage":[132],"capture":[134],"interpretable":[135],"structures":[136],"are":[138],"strongly":[139],"correlated":[140],"underlying":[143],"information.":[146]},"counts_by_year":[],"updated_date":"2026-07-28T07:46:37.118299","created_date":"2026-02-06T00:00:00"}