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DC Field | Value | Language |
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dc.citation.endPage | 108 | - |
dc.citation.number | 1 | - |
dc.citation.startPage | 102 | - |
dc.citation.title | JOURNAL OF COMMUNICATIONS AND NETWORKS | - |
dc.citation.volume | 20 | - |
dc.contributor.author | Joo, Changhee | - |
dc.contributor.author | Choi, Jihwan | - |
dc.date.accessioned | 2023-12-21T21:09:16Z | - |
dc.date.available | 2023-12-21T21:09:16Z | - |
dc.date.created | 2018-04-13 | - |
dc.date.issued | 2018-02 | - |
dc.description.abstract | The large number of users and the long propagation delay of communication satellites make it difficult to deploy a random access scheme that performs well in terrestrial networks. The aim of this paper is to demonstrate that a relay architecture with unmanned aerial vehicles (UAV) between the ground and satellites can facilitate satellite access with a low overhead. We consider a TDMA-based two-level relay structure, in which users transmit data to UAVs through a random access scheme, and the UAVs forward it to the satellite with either a coordinated or uncoordinated access scheme. We show that the coordinated access for the UAV- to-satellite links can substantially improve the throughput and delay performance. We conclude that a proper scheme for resource allocation between ground-to-UAVs and UAVs-to-satellite is critical to optimize the relay network, which includes the UAV altitude, and should be based on traffic demand and the number of UAVs deployed. | - |
dc.identifier.bibliographicCitation | JOURNAL OF COMMUNICATIONS AND NETWORKS, v.20, no.1, pp.102 - 108 | - |
dc.identifier.doi | 10.1109/JCN.2018.000010 | - |
dc.identifier.issn | 1229-2370 | - |
dc.identifier.scopusid | 2-s2.0-85044352546 | - |
dc.identifier.uri | https://scholarworks.unist.ac.kr/handle/201301/23975 | - |
dc.identifier.url | https://ieeexplore.ieee.org/document/8320559/ | - |
dc.identifier.wosid | 000428149300010 | - |
dc.language | 영어 | - |
dc.publisher | KOREAN INST COMMUNICATIONS SCIENCES (K I C S) | - |
dc.title | Low-delay broadband satellite communications with high-altitude unmanned aerial vehicles | - |
dc.type | Article | - |
dc.description.isOpenAccess | FALSE | - |
dc.relation.journalWebOfScienceCategory | Computer Science, Information Systems; Telecommunications | - |
dc.identifier.kciid | ART002322726 | - |
dc.relation.journalResearchArea | Computer Science; Telecommunications | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.description.journalRegisteredClass | kci | - |
dc.subject.keywordAuthor | ALOHA | - |
dc.subject.keywordAuthor | relay architecture | - |
dc.subject.keywordAuthor | satellite communications | - |
dc.subject.keywordAuthor | unmanned aerial vehicles (UAV) | - |
dc.subject.keywordAuthor | uplink access | - |
dc.subject.keywordPlus | NETWORKS | - |
dc.subject.keywordPlus | EFFICIENT | - |
dc.subject.keywordPlus | SYSTEMS | - |
dc.subject.keywordPlus | SERVICES | - |
dc.subject.keywordPlus | TRANSMISSION | - |
dc.subject.keywordPlus | PERFORMANCE | - |
dc.subject.keywordPlus | ALOHA | - |
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