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Assessment of the Interference caused by uncontrolled traffic sources upon real-time communication in IEEE 802.11-based mesh networks

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5 Author(s)
Viegas, C.M.D. ; IDMEC/ISR - Fac. de Eng., Univ. do Porto, Porto, Portugal ; Sampaio, S. ; Vasques, F. ; Portugal, P.
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In this paper we assess the interference caused by external (uncontrolled) traffic sources upon real-time flows in IEEE 802.11-based mesh networks. Through a set of simulations, we assess the impact of external traffic sources by analyzing the end-to-end delay, frame loss ratio and deadline miss ratio as performance metrics for a set of real-time flows. We infer the maximum interfering traffic load that can be supported so that it does not negatively impact upon the behavior of the real-time flows. We highlight that there is a critical threshold load for the network above which the network can no longer reliably support real-time flows.

Published in:

Factory Communication Systems (WFCS), 2012 9th IEEE International Workshop on

Date of Conference:

21-24 May 2012