Mobility

CapEst: A Measurement-Based Approach to Estimating Link Capacity in Wireless Networks

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Executive Summary

Estimating link capacity in a wireless network is a complex task because the available capacity at a link is a function of not only the current arrival rate at that link, but also of the arrival rate at links which interfere with that link as well as of the nature of interference between these links. Models which accurately characterize this dependence are either too computationally complex to be useful or lack accuracy. Further, they have a high implementation overhead and make restrictive assumptions, which makes them inapplicable to real networks. In this paper, the authors propose CapEst, a general, simple yet accurate, measurement-based approach to estimating link capacity in a wireless network.

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