Analysis of Unsaturation Performance of IEEE 802.11 DCF with and without Slow Contention Window Decrease
Summary :
Most of analytical models proposed so far for the IEEE 802.11 distributed coordination function (DCF) focus on saturation performance. In this paper, we develop an analytic model for unsaturation performance evaluation of the IEEE 802.11 DCF with and without slow contention window decrease (SCWD). The model explicitly takes into account the carrier sensing mechanism and an additional backoff interval after successful frame transmission, both of which can be ignored under saturation conditions. Expressions are derived for throughput and delay characteristics by means of the equilibrium point analysis. The accuracy of our model is validated through computer simulation. Numerical results based on the IEEE 802.11b with CCK show that the SCWD can stably achieve approximately 20% performance gain over the normal 802.11 DCF under unsaturation conditions as well as saturation ones.
- Publication
- IEICE TRANSACTIONS on Fundamentals Vol.E88-A No.10 pp.2852-2862
- Publication Date
- 2005/10/01
- Publicized
- Online ISSN
- DOI
- 10.1093/ietfec/e88-a.10.2852
- Type of Manuscript
- Special Section PAPER (Special Section on Information Theory and Its Applications)
- Category
- Communication Theory
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Katsumi SAKAKIBARA, Shogo CHIKADA, Jiro YAMAKITA, "Analysis of Unsaturation Performance of IEEE 802.11 DCF with and without Slow Contention Window Decrease" in IEICE TRANSACTIONS on Fundamentals,
vol. E88-A, no. 10, pp. 2852-2862, October 2005, doi: 10.1093/ietfec/e88-a.10.2852.
Abstract: Most of analytical models proposed so far for the IEEE 802.11 distributed coordination function (DCF) focus on saturation performance. In this paper, we develop an analytic model for unsaturation performance evaluation of the IEEE 802.11 DCF with and without slow contention window decrease (SCWD). The model explicitly takes into account the carrier sensing mechanism and an additional backoff interval after successful frame transmission, both of which can be ignored under saturation conditions. Expressions are derived for throughput and delay characteristics by means of the equilibrium point analysis. The accuracy of our model is validated through computer simulation. Numerical results based on the IEEE 802.11b with CCK show that the SCWD can stably achieve approximately 20% performance gain over the normal 802.11 DCF under unsaturation conditions as well as saturation ones.
URL: https://global.ieice.org/en_transactions/fundamentals/10.1093/ietfec/e88-a.10.2852/_p
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@ARTICLE{e88-a_10_2852,
author={Katsumi SAKAKIBARA, Shogo CHIKADA, Jiro YAMAKITA, },
journal={IEICE TRANSACTIONS on Fundamentals},
title={Analysis of Unsaturation Performance of IEEE 802.11 DCF with and without Slow Contention Window Decrease},
year={2005},
volume={E88-A},
number={10},
pages={2852-2862},
abstract={Most of analytical models proposed so far for the IEEE 802.11 distributed coordination function (DCF) focus on saturation performance. In this paper, we develop an analytic model for unsaturation performance evaluation of the IEEE 802.11 DCF with and without slow contention window decrease (SCWD). The model explicitly takes into account the carrier sensing mechanism and an additional backoff interval after successful frame transmission, both of which can be ignored under saturation conditions. Expressions are derived for throughput and delay characteristics by means of the equilibrium point analysis. The accuracy of our model is validated through computer simulation. Numerical results based on the IEEE 802.11b with CCK show that the SCWD can stably achieve approximately 20% performance gain over the normal 802.11 DCF under unsaturation conditions as well as saturation ones.},
keywords={},
doi={10.1093/ietfec/e88-a.10.2852},
ISSN={},
month={October},}
Copy
TY - JOUR
TI - Analysis of Unsaturation Performance of IEEE 802.11 DCF with and without Slow Contention Window Decrease
T2 - IEICE TRANSACTIONS on Fundamentals
SP - 2852
EP - 2862
AU - Katsumi SAKAKIBARA
AU - Shogo CHIKADA
AU - Jiro YAMAKITA
PY - 2005
DO - 10.1093/ietfec/e88-a.10.2852
JO - IEICE TRANSACTIONS on Fundamentals
SN -
VL - E88-A
IS - 10
JA - IEICE TRANSACTIONS on Fundamentals
Y1 - October 2005
AB - Most of analytical models proposed so far for the IEEE 802.11 distributed coordination function (DCF) focus on saturation performance. In this paper, we develop an analytic model for unsaturation performance evaluation of the IEEE 802.11 DCF with and without slow contention window decrease (SCWD). The model explicitly takes into account the carrier sensing mechanism and an additional backoff interval after successful frame transmission, both of which can be ignored under saturation conditions. Expressions are derived for throughput and delay characteristics by means of the equilibrium point analysis. The accuracy of our model is validated through computer simulation. Numerical results based on the IEEE 802.11b with CCK show that the SCWD can stably achieve approximately 20% performance gain over the normal 802.11 DCF under unsaturation conditions as well as saturation ones.
ER -
English
