Title:	A QOS AWARE AD HOC MULTICAST BY COMBINING TDMA AND IEEE 802.11 DCF
Author(s):	Jing Lin, Ryo Yamamoto, Satoshi Ohzahata and Toshihiko Kato
ISBN:	978-989-8533-66-1
Editors:	Yingcai Xiao and Ajith P. Abraham
Year:	2017
Edition:	Single
Keywords:	Ad Hoc Network, Multicast, QoS, TDMA, DCF
Type:	Full Paper
First Page:	204
Last Page:	212
Language:	English
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Paper Abstract:	In this paper, we propose a QoS (Quality of Service) supporting method for ad hoc multicast by combining TDMA (Time Division Multiple Access) and IEEE 802.11 DCF (Distributed Coordination Function). In the proposed method, the time frame is composed of two different periods, specifically a TDMA period and a DCF period. A TDMA period provides contention free transmission for QoS multicast flows, and a DCF period provides contention-based access for best effort or low priority flows. Our proposal enhances MOLSR (Multicast Optimized Link State Routing) so that time slots are assigned and the admission of a QoS multicast flow is checked during the multicast tree construction. We evaluate the proposed method for an environment where QoS multicast flows and TCP flows coexist using the QualNet simulator. Simulation results show that our proposal is an efficient solution for QoS control in ad hoc multicast communication.
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