A list-based medium access control algorithm in IEEE 802.11 wireless mesh networks

Authors:
Moo-Yeong Jeong;Bum-Gon Choi;Ju Yong Lee;Min Young Chung
Affiliations:
School of Information and Communication Engineering, Sungkyunkwan University, Suwon, Republic of Korea;School of Information and Communication Engineering, Sungkyunkwan University, Suwon, Republic of Korea;School of Information and Communication Engineering, Sungkyunkwan University, Suwon, Republic of Korea;School of Information and Communication Engineering, Sungkyunkwan University, Suwon, Republic of Korea
Venue:
ICACT'10 Proceedings of the 12th international conference on Advanced communication technology
Year:
2010

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Enhancing throughput over wireless LANs using channel state dependent packet scheduling

INFOCOM'96 Proceedings of the Fifteenth annual joint conference of the IEEE computer and communications societies conference on The conference on computer communications - Volume 3
MAC Scheduling Using Channel State Diversity for High-Throughput IEEE 802.11 Mesh Networks

IEEE Communications Magazine

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Abstract

The Head-Of-Line (HOL) blocking problem is one of major reasons for degradation of the performance in wireless mesh networks (WMNs). Since IEEE 802.11 MAC handles packets as the First-In, First-Out (FIFO) policy, devices having frames to transmit may stay in back-off stage for a long time due to a HOL-blocked packet. To resolve the HOL blocking problem, we propose a novel scheduling algorithm called as List-Based Medium Access Control (LBMAC). Our LBMAC algorithm improves the network performance by alleviating the HOL blocking problem and reducing the excessive back-off time. We design the LBMAC based on CSMA/CA algorithm so as to easily incorporate with IEEE 802.11 standards. Performance evaluation shows that our algorithm achieves better performance than IEEE 802.11 MAC protocol.