IEICE Transactions on Communications
Online ISSN : 1745-1345
Print ISSN : 0916-8516
Special Section on Challenged Networking Technologies and Its Service Quality
A TDMA/DCF Hybrid QoS Scheme for Ad Hoc Networks
Jing LINCelimuge WUSatoshi OHZAHATAToshihiko KATO
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Keywords: ad hoc, TDMA, DCF, QoS

2017 Volume E100.B Issue 1 Pages 42-53


We propose a QoS scheme for ad hoc networks by combining TDMA and IEEE 802.11 DCF, and present performance evaluation results of the scheme. In the proposed scheme, the channel time is composed of two different periods, specifically TDMA period and DCF period. The TDMA period provides contention free transmission opportunities for QoS flows, and the DCF period provides contention-based access for best effort or low priority flows. We evaluate the proposed scheme for various numbers of TCP flows and different CBR data rates with QualNet simulator. Simulation results show that the protocol is able to provide an efficient solution for QoS control in ad hoc networks.

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© 2017 The Institute of Electronics, Information and Communication Engineers
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