DC Field | Value | Language |
---|---|---|
dc.contributor.author | Lee, Harim | - |
dc.contributor.author | Yang, Hyun Jong | - |
dc.date.accessioned | 2021-06-01T05:01:24Z | - |
dc.date.available | 2021-06-01T05:01:24Z | - |
dc.date.created | 2021-02-26 | - |
dc.date.issued | 2022-01 | - |
dc.identifier.issn | 1536-1233 | - |
dc.identifier.uri | https://oasis.postech.ac.kr/handle/2014.oak/105593 | - |
dc.description.abstract | To maximize the spectral efficiency while satisfying the increasing mobile traffic demand, LTE can offload downlink traffics to unlicensed UNII bands at 5GHz via the standardized technology LTE-LAA (Licensed Assisted Access). In the scenario where LTE-LAA inevitably coexists with already pervasive WiFi devices which were designed without the consideration of LTE-LAA, recent studies have reported that the asymmetric hidden terminal (AHT) problem, caused by the difference in the listen-before-talk clear-channel-assessment (CCA) thresholds of WiFi and LTE-LAA, severely degrades the throughput and delay performance of both LTE-LAA and WiFi. As a remedy to the AHT problem, we propose a multi-antenna multi-user transmit precoding and power control techniques for LTE-LAA base stations \textcolor{blue}{to make neighboring Wi-Fi APs defer their new transmissions,} thereby peacefully coexisting with them. The proposed scheme does not require any technical amendment or extra work on the conventional Wi-Fi. Based on our realistic simulator with essential MAC and PHY functions implemented, it is confirmed that the proposed scheme improves the throughput and delay performance of LTE-LAA while maintaining or even improving that of Wi-Fi. | - |
dc.language | English | - |
dc.publisher | Institute of Electrical and Electronics Engineers | - |
dc.relation.isPartOf | IEEE Transactions on Mobile Computing | - |
dc.title | Downlink MU-MIMO LTE-LAA for Coexistence with Asymmetric Hidden Wi-Fi APs | - |
dc.type | Article | - |
dc.identifier.doi | 10.1109/tmc.2020.3003314 | - |
dc.type.rims | ART | - |
dc.identifier.bibliographicCitation | IEEE Transactions on Mobile Computing, v.21, no.1, pp.93 - 109 | - |
dc.identifier.wosid | 000725799600007 | - |
dc.citation.endPage | 109 | - |
dc.citation.number | 1 | - |
dc.citation.startPage | 93 | - |
dc.citation.title | IEEE Transactions on Mobile Computing | - |
dc.citation.volume | 21 | - |
dc.contributor.affiliatedAuthor | Lee, Harim | - |
dc.contributor.affiliatedAuthor | Yang, Hyun Jong | - |
dc.identifier.scopusid | 2-s2.0-85105136242 | - |
dc.description.journalClass | 1 | - |
dc.description.journalClass | 1 | - |
dc.description.isOpenAccess | N | - |
dc.type.docType | Article | - |
dc.subject.keywordPlus | MASSIVE MIMO | - |
dc.subject.keywordPlus | PERFORMANCE | - |
dc.subject.keywordPlus | BANDS | - |
dc.subject.keywordAuthor | asymmetric hidden terminal | - |
dc.subject.keywordAuthor | distributed coordination function | - |
dc.subject.keywordAuthor | License assisted access LTE | - |
dc.subject.keywordAuthor | multi-user MIMO | - |
dc.subject.keywordAuthor | Wi-Fi | - |
dc.relation.journalWebOfScienceCategory | Computer Science, Information Systems | - |
dc.relation.journalWebOfScienceCategory | Telecommunications | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
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