An experimental study of latency for IEEE 802.11be multi-link operation

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• dc.contributor.author Carrascosa Zamacois, Marc
• dc.contributor.author Geraci, Giovanni
• dc.contributor.author Knightly, Edward
• dc.contributor.author Bellalta, Boris
• dc.date.accessioned 2023-03-06T07:25:52Z
• dc.date.available 2023-03-06T07:25:52Z
• dc.date.issued 2022
• dc.description Comunicació presentada a IEEE International Conference on Communications (ICC 2022), celebrat del 16 al 20 de maig de 2022 a Seül, Corea del Sud.
• dc.description.abstract Will Multi-Link Operation (MLO) be able to improve the latency of Wi-Fi networks? MLO is one of the most disruptive MAC-layer techniques included in the IEEE 802.11be amendment. It allows a device to use multiple radios simultaneously and in a coordinated way, providing a new framework to improve the WLAN throughput and latency. In this paper, we investigate the potential latency benefits of MLO by using a large dataset containing 5 GHz spectrum occupancy measurements. Experimental results show that when the channels are symmetrically occupied, MLO can improve latency by one order of magnitude. In contrast, in asymmetrically occupied channels, MLO can sometimes be detrimental and increase latency. This is a result of packets being assigned to an interface before carrying out the backoff, which is more likely to be interrupted on the busier link. We overcome this issue by allowing multiple backoffs to run in parallel, assigning the packet to the particular interface where the backoff expires first, which also achieves lower latency overall.
• dc.description.sponsorship M. Carrascosa and B. Bellalta were supported by WINDMAL PGC2018- 099959-B-I00 (MCIU/AEI/FEDER,UE) and Cisco. G. Geraci was supported by MINECO’s Project RTI2018-101040 and by a “Ramón y Cajal” Fellowship from the Spanish State Research Agency. E. Knightly’s research was supported by Cisco, Intel, and NSF Grants CNS1955075 and CNS-1923782.
• dc.format.mimetype application/pdf
• dc.identifier.citation Carrascosa M, Geraci G, Knightly E, Bellalta B. An experimental study of latency for IEEE 802.11be multi-link operation. In: IEEE International Conference on Communications (ICC 2022); 2022 May 16-20; Seoul, Korea. [Piscataway]: IEEE; 2022. p. 2507-12. DOI: 10.1109/ICC45855.2022.9838765
• dc.identifier.doi http://dx.doi.org/10.1109/ICC45855.2022.9838765
• dc.identifier.issn 1550-3607
• dc.identifier.uri http://hdl.handle.net/10230/56041
• dc.language.iso eng
• dc.publisher Institute of Electrical and Electronics Engineers (IEEE)
• dc.relation.ispartof IEEE International Conference on Communications (ICC 2022); 2022 May 16-20; Seoul, Korea. [Piscataway]: IEEE; 2022. p. 2507-12.
• dc.relation.projectID info:eu-repo/grantAgreement/ES/2PE/PGC2018-099959-B-I00
• dc.relation.projectID info:eu-repo/grantAgreement/ES/2PE/RTI2018-101040
• dc.rights © 2022 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, 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 component of this work in other works. http://dx.doi.org/10.1109/ICC45855.2022.9838765
• dc.rights.accessRights info:eu-repo/semantics/openAccess
• dc.subject.keyword Conferences
• dc.subject.keyword Telecommunication traffic
• dc.subject.keyword Throughput
• dc.subject.keyword Wireless fidelity
• dc.title An experimental study of latency for IEEE 802.11be multi-link operation
• dc.type info:eu-repo/semantics/conferenceObject
• dc.type.version info:eu-repo/semantics/acceptedVersion