Optimal qos mechanism: integrating multipath routing, diffserv and distributed traffic control in mobile ad hoc networks

Authors:
Xuefei Li;Laurie Cuthbert
Affiliations:
Department of Electronic Engineering, Queen Mary, University of London, London, United Kingdom;Department of Electronic Engineering, Queen Mary, University of London, London, United Kingdom
Venue:
MSN'05 Proceedings of the First international conference on Mobile Ad-hoc and Sensor Networks
Year:
2005

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Abstract

Future mobile Ad hoc networks (MANETs) are expected to be based on all-IP architecture and be capable of carrying multitude real-time multimedia applications such as voice, video and data. It is very necessary for MANETs to have an optimal routing and quality of service (QoS) mechanism to support diverse applications. Providing multipath routing is beneficial to avoid traffic congestion and frequent breaks in communication due to mobility in MANETs. Differentiated Services (DiffServ) can be used to classify network traffic into different priority levels and apply priority scheduling and queuing management mechanisms to obtain QoS guarantees. Dynamically distributed traffic control can effectively take advantage of multiple routing paths to avoid congestion and decrease delay. In this paper, we propose an optimal QoS mechanism: Integrating Multipath routing, DiffServ and distributed Traffic control in mobile ad hoc networks (IMDT). Simulation results show that IMDT achieves better performance in terms of packet delivery ratio and average delay.