Sunil Kumar, Mahasweta Sarkar, Supraja Gurajala, John D. Matyjas, Journal of Information Processing Systems Vol. 4, No. 1, pp. 41-52, Mar. 2008  

10.3745/JIPS.2008.4.2.041
Keywords: medium access control, MAC, Ad Hoc Networks, Multi Hop, QoS, Multimedia
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Abstract

In this paper, we discuss a novel reservation-based, asynchronous MAC protocol called¡®Multi-rate Multi-hop MAC Protocol¡¯ (MMMP) for multi-hop ad hoc networks that provides QoS guarantees for multimedia traffic. MMMP achieves this by providing service differentiation for multirate real-time traffic (both constant and variable bit rate traffic) and guaranteeing a bounded end-to-end delay for the same while still catering to the throughput requirements of non real time traffic. In addition, it administers bandwidth preservation via a feature called ¡®Smart Drop¡¯ and implements efficient bandwidth usage through a mechanism called ¡®Release Bandwidth¡¯. Simulation results on the QualNet simulator indicate that MMMP outperforms IEEE 802.11 on all performance metrics and can efficiently handle a large range of traffic intensity. It also outperforms other similar state-of-the-art MAC protocols.

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