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Enhancing IEEE 802.11 MAC in congested environments

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Enhancing IEEE 802.11 MAC in congested environments. / Aad, I ; Ni, Q ; Barakat, C et al.

In: Computer Communications, Vol. 28, No. 14, 01.09.2005, p. 1605-1617.

Research output: Contribution to Journal/MagazineJournal articlepeer-review

Harvard

Aad, I, Ni, Q, Barakat, C & Turletti, T 2005, 'Enhancing IEEE 802.11 MAC in congested environments', Computer Communications, vol. 28, no. 14, pp. 1605-1617. https://doi.org/10.1016/j.comcom.2005.02.010

APA

Aad, I., Ni, Q., Barakat, C., & Turletti, T. (2005). Enhancing IEEE 802.11 MAC in congested environments. Computer Communications, 28(14), 1605-1617. https://doi.org/10.1016/j.comcom.2005.02.010

Vancouver

Aad I, Ni Q, Barakat C, Turletti T. Enhancing IEEE 802.11 MAC in congested environments. Computer Communications. 2005 Sep 1;28(14):1605-1617. doi: 10.1016/j.comcom.2005.02.010

Author

Aad, I ; Ni, Q ; Barakat, C et al. / Enhancing IEEE 802.11 MAC in congested environments. In: Computer Communications. 2005 ; Vol. 28, No. 14. pp. 1605-1617.

Bibtex

@article{1b1bedca431d4ce4b1c19144ed9e9903,
title = "Enhancing IEEE 802.11 MAC in congested environments",
abstract = "IEEE 802.11 is currently the most deployed wireless local area networking standard. It uses carrier sense multiple access with collision avoidance (CSMA/CA) to resolve contention between nodes. Contention windows (CW) change dynamically to adapt to the contention level: Upon each collision, a node doubles its CW to reduce further collision risks. Upon a successful transmission, the CW is reset, assuming that the contention level has dropped. However, the contention level is more likely to change slowly, and resetting the CW causes new collisions and retransmissions before the CW reaches the optimal value again. This wastes bandwidth and increases delays. In this paper we analyze simple slow CW decrease functions and compare their performances to the legacy standard. We use simulations and mathematical modeling to show their considerable improvements at all contention levels and transient phases, especially in highly congested environments. (c) 2005 Elsevier B.V. All rights reserved.",
keywords = "Wireless communications, IEEE 802.11, MAC, CSMA/CA, Simulations, Markov chains",
author = "I Aad and Q Ni and C Barakat and T Turletti",
year = "2005",
month = sep,
day = "1",
doi = "10.1016/j.comcom.2005.02.010",
language = "English",
volume = "28",
pages = "1605--1617",
journal = "Computer Communications",
issn = "0140-3664",
publisher = "Elsevier",
number = "14",

}

RIS

TY - JOUR

T1 - Enhancing IEEE 802.11 MAC in congested environments

AU - Aad, I

AU - Ni, Q

AU - Barakat, C

AU - Turletti, T

PY - 2005/9/1

Y1 - 2005/9/1

N2 - IEEE 802.11 is currently the most deployed wireless local area networking standard. It uses carrier sense multiple access with collision avoidance (CSMA/CA) to resolve contention between nodes. Contention windows (CW) change dynamically to adapt to the contention level: Upon each collision, a node doubles its CW to reduce further collision risks. Upon a successful transmission, the CW is reset, assuming that the contention level has dropped. However, the contention level is more likely to change slowly, and resetting the CW causes new collisions and retransmissions before the CW reaches the optimal value again. This wastes bandwidth and increases delays. In this paper we analyze simple slow CW decrease functions and compare their performances to the legacy standard. We use simulations and mathematical modeling to show their considerable improvements at all contention levels and transient phases, especially in highly congested environments. (c) 2005 Elsevier B.V. All rights reserved.

AB - IEEE 802.11 is currently the most deployed wireless local area networking standard. It uses carrier sense multiple access with collision avoidance (CSMA/CA) to resolve contention between nodes. Contention windows (CW) change dynamically to adapt to the contention level: Upon each collision, a node doubles its CW to reduce further collision risks. Upon a successful transmission, the CW is reset, assuming that the contention level has dropped. However, the contention level is more likely to change slowly, and resetting the CW causes new collisions and retransmissions before the CW reaches the optimal value again. This wastes bandwidth and increases delays. In this paper we analyze simple slow CW decrease functions and compare their performances to the legacy standard. We use simulations and mathematical modeling to show their considerable improvements at all contention levels and transient phases, especially in highly congested environments. (c) 2005 Elsevier B.V. All rights reserved.

KW - Wireless communications

KW - IEEE 802.11

KW - MAC

KW - CSMA/CA

KW - Simulations

KW - Markov chains

U2 - 10.1016/j.comcom.2005.02.010

DO - 10.1016/j.comcom.2005.02.010

M3 - Journal article

VL - 28

SP - 1605

EP - 1617

JO - Computer Communications

JF - Computer Communications

SN - 0140-3664

IS - 14

ER -