Mobility

Testbed Validation for the Evaluation of a Delay Aware Routing Metric for Ad Hoc Networks

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Executive Summary

There is a growing need for real-time multimedia applications to be supported in ad hoc networking environments. Most current ad hoc routing protocols only support best-effort routing. By adopting Quality of Service (QoS) aware routing metrics, one can extend the set of multimedia services that run in an ad hoc network. Firstly, in this paper the authors present a 4 node wireless prototype testbed that was constructed to analyse ad hoc routing protocol behaviour. The testbed architecture is described and its ability to allow for repeatable and reproducible experimentation is verified. Secondly, they practically implement enhancements to the AODV (Ad Hoc On-demand Distance Vector) routing protocol. The routing metric is changed from hop count to measured end-to-end delay.

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