MIMO-Based Reliable Grant-Free Massive Access With QoS Differentiation for 5G and Beyond
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Abebe, Ameha Tsegaye | - |
dc.contributor.author | Kang, Chung G. | - |
dc.date.accessioned | 2021-11-23T20:40:18Z | - |
dc.date.available | 2021-11-23T20:40:18Z | - |
dc.date.created | 2021-08-30 | - |
dc.date.issued | 2021-03 | - |
dc.identifier.issn | 0733-8716 | - |
dc.identifier.uri | https://scholar.korea.ac.kr/handle/2021.sw.korea/128513 | - |
dc.description.abstract | Grant-free (GF) access has been one of the enablers for the various use cases in 5th generation (5G) mobile system, especially for time-critical massive machine-type communication (mMTC). However, these use cases have diverse quality of service (QoS) requirements, which can be measured in terms of an access success rate from a GF random access perspective. Consequently, a GF scheme that enables supporting of diverse QoS is highly sought. This article proposes a GF access scheme in which high-QoS users superpose multiple preambles to improve their access success rate as a result of the diversity in access collision and multiple access interference seen by multiple preambles. We further show that in the presence of multiple antennas in the base station (BS), a low-complexity receiver can correctly detect active preambles with a significantly high probability, even under severe multiple access interference caused by non-orthogonal preamble transmission. A theoritical performance analysis is conducted by modeling the preamble reception as a multiple measurement vector-based compressive sensing problem. The preamble misdetection probability is shown to decrease exponentially as the number antennas at BS increases. Numerical results demonstrate multiple-order improvement in terms of the access success rate for critical-QoS users, even under severe noise and multiple access contamination. | - |
dc.language | English | - |
dc.language.iso | en | - |
dc.publisher | IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC | - |
dc.title | MIMO-Based Reliable Grant-Free Massive Access With QoS Differentiation for 5G and Beyond | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Kang, Chung G. | - |
dc.identifier.doi | 10.1109/JSAC.2020.3018963 | - |
dc.identifier.scopusid | 2-s2.0-85101740551 | - |
dc.identifier.wosid | 000621403500012 | - |
dc.identifier.bibliographicCitation | IEEE JOURNAL ON SELECTED AREAS IN COMMUNICATIONS, v.39, no.3, pp.773 - 787 | - |
dc.relation.isPartOf | IEEE JOURNAL ON SELECTED AREAS IN COMMUNICATIONS | - |
dc.citation.title | IEEE JOURNAL ON SELECTED AREAS IN COMMUNICATIONS | - |
dc.citation.volume | 39 | - |
dc.citation.number | 3 | - |
dc.citation.startPage | 773 | - |
dc.citation.endPage | 787 | - |
dc.type.rims | ART | - |
dc.type.docType | Article | - |
dc.description.journalClass | 1 | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Engineering | - |
dc.relation.journalResearchArea | Telecommunications | - |
dc.relation.journalWebOfScienceCategory | Engineering, Electrical & Electronic | - |
dc.relation.journalWebOfScienceCategory | Telecommunications | - |
dc.subject.keywordPlus | AVERAGE-CASE ANALYSIS | - |
dc.subject.keywordPlus | PART I | - |
dc.subject.keywordPlus | CONNECTIVITY | - |
dc.subject.keywordPlus | RECOVERY | - |
dc.subject.keywordPlus | NETWORKS | - |
dc.subject.keywordPlus | CHANNEL | - |
dc.subject.keywordAuthor | Quality of service | - |
dc.subject.keywordAuthor | Channel estimation | - |
dc.subject.keywordAuthor | Receivers | - |
dc.subject.keywordAuthor | Pollution measurement | - |
dc.subject.keywordAuthor | MIMO communication | - |
dc.subject.keywordAuthor | Antennas | - |
dc.subject.keywordAuthor | Complexity theory | - |
dc.subject.keywordAuthor | Grant-free access | - |
dc.subject.keywordAuthor | MIMO | - |
dc.subject.keywordAuthor | non-orthogonal Zadoff-Chu sequences | - |
dc.subject.keywordAuthor | quality-of-services (QoS) | - |
dc.subject.keywordAuthor | uRLLC | - |
dc.subject.keywordAuthor | mMTC | - |
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