Toward a MAC Protocol Overcoming Hidden Stations Issue in IEEE 802.11ax Unidirectional Full Duplex Radio Communications

Hocini, Kenza; Yazid, Mohand

doi:10.1109/edis49545.2020.9296431

Cited by 4 publications

(2 citation statements)

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“…Strictly speaking, the FD radio technique enables within the same BSS (basic set service) two different data streams DL (down‐link) and UL (up‐link) to be transmitted simultaneously (respectively, from and toward the access point) over the same radio frequencies 8 . Therefore, this technique theoretically allows doubling the network throughput 9 …”

Section: Introductionmentioning

confidence: 99%

“…8 Therefore, this technique theoretically allows doubling the network throughput. 9 In order to take full advantage of the FD radio transmission technique at the PHY layer level, a protocol for controlling FD radio communications should be developed, implemented, and utilized at MAC layer level. 10 For this to happen, the envisioned protocol should look at all aspects and all the characteristic features of the FD radio communications, including the following: (i) collection and scheduling of FD radio configurations, (ii) identification of the behavior of stations (hidden or exposed), (iii) consideration of the asymmetry between DL and UL data streams, and (iv) control of FD radio operations with a minimum of overhead.…”

Section: Introductionmentioning

confidence: 99%

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Toward an efficient and coordinated control of full‐duplex radio communications in high‐efficiency wireless local area networks

Hocini

Yazid

Ksentini

2022

Int J Communication

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SummaryThe full‐duplex radio transmission technique is a prominent feature in the physical layer of the new IEEE 802.11ax standard for promoting the use of WiFi 6, also called HEW (High‐Efficiency Wireless local area network). Based on this unprecedented technique, a WiFi transmitter has the ability to transmit and receive data simultaneously using the same radio channel, thereby doubling the network capacity and spectral efficiency. However, many challenges related to the MAC (medium access control) layer (including full‐duplex configurations, hidden relationship, unbalance between data streams, and overhead) should be addressed to fully benefit from this technique. The aim of this paper is to design, implement, and assess a new Full‐Duplex MAC protocol by meeting the inherent challenges in controlling full‐duplex radio communications. Accordingly, an efficient and coordinated control protocol is proposed, whose basic principle is to exchange all relevant control information and transmit data without loss or unnecessary delay. The performance evaluation of the proposed protocol demonstrates that the results obtained are the best, especially when the network is dense or the traffic from the access point is heavy.

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Section: Introductionmentioning

confidence: 99%