Control OBSS/PD Sensitivity Threshold for IEEE 802.11ax BSS Color

Selinis, Ioannis; Κατσαρός, Κωνσταντίνος; Vahid, Seiamak; Tafazolli, Rahim

doi:10.1109/pimrc.2018.8580778

Cited by 23 publications

(21 citation statements)

References 16 publications

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“…However, an extremely conservative value may lead to spectrum inefficiency due to the exposed node problem and higher probability of a false alarm. The main drawbacks of DSC are that transmission opportunity for celledge users further decays due to the extended carrier sensing range [8] and the increased probability of a false alarm [1]. DSC has been extensively studied in residential [18], small indoor [19,20], and outdoor scenarios [23].…”

Section: Spatial Reuse In Ieee 80211axmentioning

confidence: 99%

“…Furthermore, the color value is distributed to STAs (from APs) during the association stage and may change during operation if a color collision is detected and reported to the AP. BSS Color performance has been extensively assessed in various deployments [8,20,23].…”

Section: Spatial Reuse In Ieee 80211axmentioning

confidence: 99%

“…4 is applied, otherwise the subfield is not incorporated). However, DSC does not fully exploit the BSS Color information and may also deteriorate the fairness among the cell-edge users and the rest users in terms of the transmission opportunities, as highlighted in the work [8].…”

Section: Spatial Reuse In Ieee 80211axmentioning

confidence: 99%

“…SNR, interference level etc.). It also exploits the SR mechanism of the IEEE 802.11ax by integrating the COST scheme [8] that adapts the OBSS/PD threshold and jointly adjusts the transmit power level.…”

Section: The Damysus Algorithmmentioning

confidence: 99%

“…TGax). Furthermore, we present a rate control algorithm based on the work presented in [8]. The motivation for this work is to develop a practical decentralised rate control algorithm that operates hand in hand with the BSS Color scheme and leverages the SR features introduced for the future WLANs.…”

Section: Introductionmentioning

confidence: 99%

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Damysus: A Practical IEEE 802.11ax BSS Color Aware Rate Control Algorithm

Selinis

Κατσαρός

Vahid

et al. 2019

Int J Wireless Inf Networks

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Institute of Electrical and Electronics Engineers (IEEE) 802.11ax Spatial Reuse (SR) is a new feature in the IEEE 802.11 family, aiming at improving the spectrum efficiency and the network performance in dense deployments. The main and perhaps the only SR technique in that amendment is the Basic Service Set (BSS) Color. It aims at increasing the number of concurrent transmissions in a specific area, based on a newly defined Overlapping BSS/Preamble-Detection threshold. In this paper, we overview the latest developments introduced in the IEEE 802.11ax for the SR and propose a rate control algorithm developed to exploit the BSS Color scheme. Our proposed algorithm, Damysus is specifically designed to function in dense environments where other off-the-shelf algorithms show poor performance. Simulation results in various dense scenarios, show a clear performance improvement of up to 113% gain in throughput over the well known MinstrelHT algorithm.

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