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dc.contributor.authorPan, Gaofeng
dc.contributor.authorYe, Jia
dc.contributor.authorAn, Jianping
dc.contributor.authorAlouini, Mohamed-Slim
dc.date.accessioned2022-04-20T05:35:24Z
dc.date.available2022-04-20T05:35:24Z
dc.date.issued2022-04-19
dc.identifier.citationPan, G., Ye, J., An, J., & Alouini, S. (2022). Latency versus Reliability in LEO Mega-Constellations: Terrestrial, Aerial, or Space Relay. IEEE Transactions on Mobile Computing, 1–1. https://doi.org/10.1109/tmc.2022.3168081
dc.identifier.issn2161-9875
dc.identifier.doi10.1109/TMC.2022.3168081
dc.identifier.urihttp://hdl.handle.net/10754/676326
dc.description.abstractLarge low earth orbit (LEO) mega-constellation systems have been designed and deployed as a global backbone to provide ubiquitous connectivity across the world. However, due to the high traffic load/congestion arisen from the required numerous information relay and forwarding, it is a challenge for LEO mega-constellation systems to set up long-distance connections between two remote terrestrial users for real-time communications, which requires strict low latency. Other than inter-LEO satellite links (ILSL), introducing third-party relays, such as terrestrial, aerial, and satellite relays, is an alternative way to improve the latency performance for wide-area deliveries of real-time traffic. However, the reliability of the transmitted signal will unavoidably degrade, because of the increased path-loss attributed to long-distance relaying transmissions. Then, to reveal the principle that the third-party relays affect the latency and reliability, in this work, an LEO satellite-terrestrial communication scenario is considered, in which two remote terrestrial users communicate with each other via an LEO mega-constellation system. Analysis models are built up to investigate the end-to-end time delay and outage performance while considering different ILSL, terrestrial, aerial, and satellite relay assisted transmission scenarios. More specifically, by applying geometrical probability theory, exact/approximated closed-form analytical expressions have been derived for average time delay
dc.description.sponsorshipSupported in part by the NSF of China under Grant 62171031 and in part by the Office of Sponsored Research at KAUST
dc.publisherIEEE
dc.relation.urlhttps://ieeexplore.ieee.org/document/9760009/
dc.relation.urlhttps://ieeexplore.ieee.org/document/9760009/
dc.relation.urlhttps://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=9760009
dc.rights(c) 2022 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other users, including reprinting/ republishing this material for advertising or promotional purposes, creating new collective works for resale or redistribution to servers or lists, or reuse of any copyrighted components of this work in other works.
dc.subjectAerial relay
dc.subjectGeometrical probability
dc.subjectIntersatellite link
dc.subjectLow earth orbit satellite
dc.subjectOutage probability
dc.subjectSatellite relay
dc.subjectSatellite-terrestrial communication
dc.subjectTerrestrial relay
dc.titleLatency versus Reliability in LEO Mega-Constellations: Terrestrial, Aerial, or Space Relay?
dc.typeArticle
dc.contributor.departmentCommunication Theory Lab, King Abdullah University of Science and Technology, 127355 Thuwal, Makkah, Saudi Arabia
dc.contributor.departmentCommunication Theory Lab
dc.contributor.departmentElectrical and Computer Engineering
dc.contributor.departmentComputer, Electrical and Mathematical Science and Engineering (CEMSE) Division
dc.contributor.departmentElectrical and Computer Engineering Program
dc.identifier.journalIEEE Transactions on Mobile Computing
dc.eprint.versionPost-print
dc.contributor.institutionThe School of Cyberspace Science and Technology, Beijing Institute of Technology, 47833 Beijing, China
dc.contributor.institutionSchool of Information and Electronics, Beijing Institute of Technology, Beijing, China
dc.identifier.pages1-1
kaust.personYe, Jia
kaust.personAlouini, Mohamed-Slim
refterms.dateFOA2022-04-20T05:36:53Z
kaust.acknowledged.supportUnitOffice of Sponsored Research


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