Centralized Contention Based MAC for OFDMA WLAN

Gunhee LEE; Cheeha KIM

doi:10.1587/transinf.2017EDL8078

Centralized Contention Based MAC for OFDMA WLAN

Gunhee LEE, Cheeha KIM

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The IEEE 802.11 wireless local area network (WLAN) is the most widely deployed communication standard in the world. Currently, the IEEE 802.11ax draft standard is one of the most advanced and promising among future wireless network standards. However, the suggested uplink-OFDMA (UL-OFDMA) random access method, based on trigger frame-random access (TF-R) from task group ax (TGax), does not yet show satisfying system performance. To enhance the UL-OFDMA capability of the IEEE 802.11ax draft standard, we propose a centralized contention-based MAC (CC-MAC) and describe its detailed operation. In this paper, we analyze the performance of CC-MAC by solving the Markov chain model and evaluating BSS throughput compared to other methods, such as DCF and TF-R, by computer simulation. Our results show that CC-MAC is a scalable and efficient scheme for improving the system performance in a UL-OFDMA random access situation in IEEE 802.11ax.

Publication: IEICE TRANSACTIONS on Information Vol.E100-D No.9 pp.2219-2223

Publication Date: 2017/09/01

Publicized: 2017/06/06

Online ISSN: 1745-1361

DOI: 10.1587/transinf.2017EDL8078

Type of Manuscript: LETTER

Category: Information Network

Authors

Gunhee LEE
Pohang University of Science and Technology (POSTECH)
Cheeha KIM
Pohang University of Science and Technology (POSTECH)

Keyword

wireless local area networks (WLAN), IEEE 802.11ax, orthogonal frequency division multiple access (OFDMA), UL-OFDMA random access, medium access control (MAC)

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Gunhee LEE, Cheeha KIM, "Centralized Contention Based MAC for OFDMA WLAN" in IEICE TRANSACTIONS on Information, vol. E100-D, no. 9, pp. 2219-2223, September 2017, doi: 10.1587/transinf.2017EDL8078.
Abstract: The IEEE 802.11 wireless local area network (WLAN) is the most widely deployed communication standard in the world. Currently, the IEEE 802.11ax draft standard is one of the most advanced and promising among future wireless network standards. However, the suggested uplink-OFDMA (UL-OFDMA) random access method, based on trigger frame-random access (TF-R) from task group ax (TGax), does not yet show satisfying system performance. To enhance the UL-OFDMA capability of the IEEE 802.11ax draft standard, we propose a centralized contention-based MAC (CC-MAC) and describe its detailed operation. In this paper, we analyze the performance of CC-MAC by solving the Markov chain model and evaluating BSS throughput compared to other methods, such as DCF and TF-R, by computer simulation. Our results show that CC-MAC is a scalable and efficient scheme for improving the system performance in a UL-OFDMA random access situation in IEEE 802.11ax.
URL: https://globals.ieice.org/en_transactions/information/10.1587/transinf.2017EDL8078/_p

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@ARTICLE{e100-d_9_2219,
author={Gunhee LEE, Cheeha KIM, },
journal={IEICE TRANSACTIONS on Information},
title={Centralized Contention Based MAC for OFDMA WLAN},
year={2017},
volume={E100-D},
number={9},
pages={2219-2223},
abstract={The IEEE 802.11 wireless local area network (WLAN) is the most widely deployed communication standard in the world. Currently, the IEEE 802.11ax draft standard is one of the most advanced and promising among future wireless network standards. However, the suggested uplink-OFDMA (UL-OFDMA) random access method, based on trigger frame-random access (TF-R) from task group ax (TGax), does not yet show satisfying system performance. To enhance the UL-OFDMA capability of the IEEE 802.11ax draft standard, we propose a centralized contention-based MAC (CC-MAC) and describe its detailed operation. In this paper, we analyze the performance of CC-MAC by solving the Markov chain model and evaluating BSS throughput compared to other methods, such as DCF and TF-R, by computer simulation. Our results show that CC-MAC is a scalable and efficient scheme for improving the system performance in a UL-OFDMA random access situation in IEEE 802.11ax.},
keywords={},
doi={10.1587/transinf.2017EDL8078},
ISSN={1745-1361},
month={September},}

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TY - JOUR
TI - Centralized Contention Based MAC for OFDMA WLAN
T2 - IEICE TRANSACTIONS on Information
SP - 2219
EP - 2223
AU - Gunhee LEE
AU - Cheeha KIM
PY - 2017
DO - 10.1587/transinf.2017EDL8078
JO - IEICE TRANSACTIONS on Information
SN - 1745-1361
VL - E100-D
IS - 9
JA - IEICE TRANSACTIONS on Information
Y1 - September 2017
AB - The IEEE 802.11 wireless local area network (WLAN) is the most widely deployed communication standard in the world. Currently, the IEEE 802.11ax draft standard is one of the most advanced and promising among future wireless network standards. However, the suggested uplink-OFDMA (UL-OFDMA) random access method, based on trigger frame-random access (TF-R) from task group ax (TGax), does not yet show satisfying system performance. To enhance the UL-OFDMA capability of the IEEE 802.11ax draft standard, we propose a centralized contention-based MAC (CC-MAC) and describe its detailed operation. In this paper, we analyze the performance of CC-MAC by solving the Markov chain model and evaluating BSS throughput compared to other methods, such as DCF and TF-R, by computer simulation. Our results show that CC-MAC is a scalable and efficient scheme for improving the system performance in a UL-OFDMA random access situation in IEEE 802.11ax.
ER -