{"id":"https://openalex.org/W7136622460","doi":"https://doi.org/10.1109/lcomm.2026.3674704","title":"DRAB: Beamlet-Based Random Access for Dense Directional 6G Networks","display_name":"DRAB: Beamlet-Based Random Access for Dense Directional 6G Networks","publication_year":2026,"publication_date":"2026-01-01","ids":{"openalex":"https://openalex.org/W7136622460","doi":"https://doi.org/10.1109/lcomm.2026.3674704"},"language":null,"primary_location":{"id":"doi:10.1109/lcomm.2026.3674704","is_oa":false,"landing_page_url":"https://doi.org/10.1109/lcomm.2026.3674704","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":"https://openalex.org/A5129567571","display_name":"Waseem Abbass","orcid":null},"institutions":[{"id":"https://openalex.org/I4210088086","display_name":"Capital University of Science and Technology","ror":"https://ror.org/004776246","country_code":"PK","type":"education","lineage":["https://openalex.org/I4210088086"]}],"countries":["PK"],"is_corresponding":true,"raw_author_name":"Waseem Abbass","raw_affiliation_strings":["Department of Electrical and Computer Engineering, Capital University of Science and Technology (CUST), Islamabad, Pakistan"],"raw_orcid":"https://orcid.org/0000-0002-1293-3049","affiliations":[{"raw_affiliation_string":"Department of Electrical and Computer Engineering, Capital University of Science and Technology (CUST), Islamabad, Pakistan","institution_ids":["https://openalex.org/I4210088086"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5129429990","display_name":"Nasim Abbas","orcid":null},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Nasim Abbas","raw_affiliation_strings":["Department of Computer Science, National Excellence Institute, Islamabad, Pakistan"],"raw_orcid":"https://orcid.org/0000-0002-0056-3765","affiliations":[{"raw_affiliation_string":"Department of Computer Science, National Excellence Institute, Islamabad, Pakistan","institution_ids":[]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5129481220","display_name":"Uzma Majeed","orcid":null},"institutions":[{"id":"https://openalex.org/I119449181","display_name":"Technische Universit\u00e4t Ilmenau","ror":"https://ror.org/01weqhp73","country_code":"DE","type":"education","lineage":["https://openalex.org/I119449181"]}],"countries":["DE"],"is_corresponding":false,"raw_author_name":"Uzma Majeed","raw_affiliation_strings":["Department of Computer Science and Automation, Technische Universit&#x00E4;t Ilmenau, Ilmenau, Germany"],"raw_orcid":"https://orcid.org/0000-0003-1477-2266","affiliations":[{"raw_affiliation_string":"Department of Computer Science and Automation, Technische Universit&#x00E4;t Ilmenau, Ilmenau, Germany","institution_ids":["https://openalex.org/I119449181"]}]}],"institutions":[],"countries_distinct_count":2,"institutions_distinct_count":3,"corresponding_author_ids":["https://openalex.org/A5129567571"],"corresponding_institution_ids":["https://openalex.org/I4210088086"],"apc_list":null,"apc_paid":null,"fwci":0.0,"has_fulltext":false,"cited_by_count":0,"citation_normalized_percentile":{"value":0.57265495,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":null,"biblio":{"volume":"30","issue":null,"first_page":"1465","last_page":"1469"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11458","display_name":"Advanced Wireless Communication Technologies","score":0.5134000182151794,"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/T11458","display_name":"Advanced Wireless Communication Technologies","score":0.5134000182151794,"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/T10936","display_name":"Millimeter-Wave Propagation and Modeling","score":0.11649999767541885,"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/T12079","display_name":"IoT Networks and Protocols","score":0.094200000166893,"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/random-access","display_name":"Random access","score":0.41760000586509705},{"id":"https://openalex.org/keywords/transmission","display_name":"Transmission (telecommunications)","score":0.33880001306533813},{"id":"https://openalex.org/keywords/signal-to-noise-ratio","display_name":"Signal-to-noise ratio (imaging)","score":0.3328999876976013},{"id":"https://openalex.org/keywords/signal-processing","display_name":"Signal processing","score":0.3199000060558319},{"id":"https://openalex.org/keywords/spread-spectrum","display_name":"Spread spectrum","score":0.31529998779296875},{"id":"https://openalex.org/keywords/random-variable","display_name":"Random variable","score":0.29809999465942383},{"id":"https://openalex.org/keywords/power","display_name":"Power (physics)","score":0.29649999737739563},{"id":"https://openalex.org/keywords/topology","display_name":"Topology (electrical circuits)","score":0.2953000068664551}],"concepts":[{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.6463000178337097},{"id":"https://openalex.org/C31258907","wikidata":"https://www.wikidata.org/wiki/Q1301371","display_name":"Computer network","level":1,"score":0.42480000853538513},{"id":"https://openalex.org/C101722063","wikidata":"https://www.wikidata.org/wiki/Q218825","display_name":"Random access","level":2,"score":0.41760000586509705},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.3727000057697296},{"id":"https://openalex.org/C761482","wikidata":"https://www.wikidata.org/wiki/Q118093","display_name":"Transmission (telecommunications)","level":2,"score":0.33880001306533813},{"id":"https://openalex.org/C13944312","wikidata":"https://www.wikidata.org/wiki/Q7512748","display_name":"Signal-to-noise ratio (imaging)","level":2,"score":0.3328999876976013},{"id":"https://openalex.org/C104267543","wikidata":"https://www.wikidata.org/wiki/Q208163","display_name":"Signal processing","level":3,"score":0.3199000060558319},{"id":"https://openalex.org/C105344744","wikidata":"https://www.wikidata.org/wiki/Q958957","display_name":"Spread spectrum","level":3,"score":0.31529998779296875},{"id":"https://openalex.org/C122123141","wikidata":"https://www.wikidata.org/wiki/Q176623","display_name":"Random variable","level":2,"score":0.29809999465942383},{"id":"https://openalex.org/C163258240","wikidata":"https://www.wikidata.org/wiki/Q25342","display_name":"Power (physics)","level":2,"score":0.29649999737739563},{"id":"https://openalex.org/C184720557","wikidata":"https://www.wikidata.org/wiki/Q7825049","display_name":"Topology (electrical circuits)","level":2,"score":0.2953000068664551},{"id":"https://openalex.org/C3020028006","wikidata":"https://www.wikidata.org/wiki/Q9158","display_name":"Electronic mail","level":2,"score":0.28780001401901245},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.28029999136924744},{"id":"https://openalex.org/C50151734","wikidata":"https://www.wikidata.org/wiki/Q1759577","display_name":"Matched filter","level":3,"score":0.2800000011920929},{"id":"https://openalex.org/C8272713","wikidata":"https://www.wikidata.org/wiki/Q176737","display_name":"Stochastic process","level":2,"score":0.2754000127315521},{"id":"https://openalex.org/C57273362","wikidata":"https://www.wikidata.org/wiki/Q576722","display_name":"Decoding methods","level":2,"score":0.273499995470047},{"id":"https://openalex.org/C32022120","wikidata":"https://www.wikidata.org/wiki/Q797225","display_name":"Interference (communication)","level":3,"score":0.26980000734329224},{"id":"https://openalex.org/C2776257435","wikidata":"https://www.wikidata.org/wiki/Q1576430","display_name":"Bandwidth (computing)","level":2,"score":0.2687999904155731},{"id":"https://openalex.org/C26517878","wikidata":"https://www.wikidata.org/wiki/Q228039","display_name":"Key (lock)","level":2,"score":0.2671000063419342},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.2662000060081482},{"id":"https://openalex.org/C80444323","wikidata":"https://www.wikidata.org/wiki/Q2878974","display_name":"Theoretical computer science","level":1,"score":0.2590000033378601},{"id":"https://openalex.org/C197055811","wikidata":"https://www.wikidata.org/wiki/Q207522","display_name":"Probability density function","level":2,"score":0.25619998574256897},{"id":"https://openalex.org/C2984118289","wikidata":"https://www.wikidata.org/wiki/Q29954","display_name":"Power consumption","level":3,"score":0.2549000084400177}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/lcomm.2026.3674704","is_oa":false,"landing_page_url":"https://doi.org/10.1109/lcomm.2026.3674704","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":0,"referenced_works":[],"related_works":[],"abstract_inverted_index":{"Efficient":[0],"random":[1],"access":[2,28,115,122],"(RA)":[3],"remains":[4],"a":[5,39,83,90,111],"critical":[6],"challenge":[7],"for":[8,42],"sixth-generation":[9],"(6G)":[10],"millimeter-wave":[11],"and":[12,20,44,67,76,89,102,118,128],"terahertz":[13],"networks,":[14],"where":[15],"directional":[16,55],"propagation,":[17,75],"dense":[18],"connectivity,":[19],"hardware":[21],"nonidealities":[22],"hinder":[23],"the":[24],"scalability":[25],"of":[26],"conventional":[27],"protocols.":[29],"This":[30],"letter":[31],"presents":[32],"Directional":[33],"Random":[34],"Access":[35],"with":[36,59,125],"Beamlets":[37],"(DRAB),":[38],"unified":[40],"framework":[41,81],"multi-cell":[43],"reconfigurable":[45],"intelligent":[46],"surface":[47],"(RIS)":[48],"assisted":[49],"6G":[50],"networks.":[51],"DRAB":[52,107],"employs":[53],"short":[54],"preambles,":[56],"termed":[57],"beamlets,":[58],"lightweight":[60],"orthogonal":[61],"offsets":[62],"to":[63,94,110],"jointly":[64],"exploit":[65],"spatial":[66],"code-domain":[68],"diversity":[69],"while":[70],"mitigating":[71],"inter-cell":[72],"interference,":[73],"reflected":[74],"Doppler-induced":[77],"coherence":[78],"loss.":[79],"The":[80],"integrates":[82],"signal-to-interference-plus-noise":[84],"ratio":[85],"(SINR)-based":[86],"detection":[87],"criterion":[88],"beamspace":[91],"correlator":[92],"bank":[93],"resolve":[95],"concurrent":[96],"transmissions":[97],"across":[98],"neighboring":[99],"cells.":[100],"Analytical":[101],"simulation":[103],"results":[104],"demonstrate":[105],"that":[106],"achieves":[108],"up":[109],"twofold":[112],"improvement":[113],"in":[114],"success":[116],"probability":[117],"approximately":[119],"35\u201340%":[120],"lower":[121],"latency,":[123],"compared":[124],"omnidirectional":[126],"PRACH":[127],"beam-sweeping":[129],"schemes.":[130]},"counts_by_year":[],"updated_date":"2026-03-26T06:05:38.182114","created_date":"2026-03-17T00:00:00"}
