Quality of service support for ODMRP multicast routing in ad hoc networks

Authors:
Amir Darehshoorzadeh;Mehdi Dehghan;M. Reza Jahed Motlagh
Affiliations:
Computer Engineering Department, Iran University of Science and Technology, Tehran, Iran;Computer Engineering Department, Amirkabir University of Technology, Tehran, Iran;Computer Engineering Department, Iran University of Science and Technology, Tehran, Iran
Venue:
ADHOC-NOW'07 Proceedings of the 6th international conference on Ad-hoc, mobile and wireless networks
Year:
2007

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Abstract

The primary concerns in ad hoc networks are bandwidth limitation and unpredictable dynamic topology. Therefore, efficient bandwidth utilization is crucial in routing protocols. The On-Demand Multicast Routing Protocol (ODMRP) was designed for multicast routing in ad hoc networks. It is very important to efficiently allocate and consume link bandwidth in this protocol, especially when many groups are working concurrently. In this paper, we propose a new method for estimating bandwidth in multicast protocols and also a new technique for supporting QoS routing in ODMRP by making an acceptable estimation of available and required bandwidth. Simulation results show that using QoS routing for ODMRP improves network performance in presence of mobility, by searching for suitable paths.