Provisioning QoS guarantee by multipath routing and reservation in ad hoc networks

Authors:
Yan-Tai Shu;Guang-Hong Wang;Lei Wang;Oliver W. W. Yang;Yong-Jie Fan
Affiliations:
Department of Computer Science, Tianjin University, Tianjin 300072, P.R. China;Department of Computer Science, Tianjin University, Tianjin 300072, P.R. China;Bell Labs Research China, Beijing 100080, P.R. China;School of Information Technology and Engineering, University of Ottawa, Ottawa, Ontario, K1N 6N5, Canada;Department of Computer Science, Tianjin University, Tianjin 300072, P.R. China
Venue:
Journal of Computer Science and Technology
Year:
2004

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Abstract

In this paper, a QoS multipath source routing protocol (QoS-MSR) is proposed for ad hoc networks. It can collect QoS information through route discovery mechanism of multipath source routing (MSR) and establish QoS route with reserved bandwidth. In order to reserve bandwidth efficiently, a bandwidth reservation approach called the multipath bandwidth splitting reservation (MBSR) is presented, under which the overall bandwidth request is split into several smaller bandwidth requests among multiple paths. In simulations, the anthors introduce Insignia, an in-bind signaling system that supports QoS in ad hoc networks, and extend it to multipath Insignia (M-Insignia) with QoS-MSR and MBSR. The results show that QoS-MSR routing protocol with the MBSR algorithm can improve the call admission ratio of QoS traffic, the packet delivery ratio, and the end-to-end delay of both best-effort traffic and QoS traffic. Therefore, QoS-MSR with MBSR is an efficient mechanism that supports QoS for ad hoc networks.