Path selection based on service curve measurement in MANETs

Authors:
Hui Yang;Stephen D. Patek
Affiliations:
Department of Systems and Information Engineering, University of Virginia;Department of Systems and Information Engineering, University of Virginia
Venue:
WCNC'09 Proceedings of the 2009 IEEE conference on Wireless Communications & Networking Conference
Year:
2009

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Abstract

In this paper, we propose an application/middle-layer, QoS-aware path selection mechanism that works in conjunction with a network-layer routing protocol for MANETs, which jointly considers both measured network capacity and application traffic profiles. The scheme, called Service Curve based Path Selection (SCPS), works by periodically probing alternative available end-to-end paths, estimating service curves for each path, and then selecting an appropriate path based on application QoS requirements. NS2 Simulation results show that SCPS can effectively improve application traffic end-to-end performance in most scenarios.