Performance Analysis of Synchronous Multi-Radio Multi-Link MAC Protocols in IEEE 802.11be Extremely High Throughput WLANsopen access
- Authors
- Song, Taewon; Kim, Taeyoon
- Issue Date
- Jan-2021
- Publisher
- MDPI
- Keywords
- 802.11; access protocols; Markov chain; multi-link; stochastic processes; wireless LAN
- Citation
- Applied Sciences-basel, v.11, no.1
- Journal Title
- Applied Sciences-basel
- Volume
- 11
- Number
- 1
- URI
- https://scholarworks.bwise.kr/sch/handle/2021.sw.sch/2122
- DOI
- 10.3390/app11010317
- ISSN
- 2076-3417
- Abstract
- The representative media access control (MAC) mechanism of IEEE 802.11 is a distributed coordination function (DCF), which operates based on carrier-sense multiple access with collision avoidance (CSMA/CA) with binary exponential backoff. The next amendment of IEEE 802.11 being developed for future Wi-Fi by the task group-be is called IEEE 802.11be, where the multi-link operation is mainly discussed when it comes to MAC layer operation. The multi-link operation discussed in IEEE 802.11be allows multi-link devices to establish multiple links and operate them simultaneously. Since the medium access on a link may affect the other links, and the conventional MAC mechanism has just taken account of a single link, the DCF should be used after careful consideration for multi-link operation. In this paper, we summarize the DCFs being reviewed to support the multi-radio multi-link operation in IEEE 802.11be and analyze their performance using the Markov chain model. Throughout the extensive performance evaluation, we summarize each MAC protocol's pros and cons and discuss essential findings of the candidate MAC protocols.
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