Mobility

An Analytical Model for Performance Evaluation of Multimedia Applications Over EDCA in an IEEE 802.11e WLAN

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Executive Summary

The authors extend the modeling heuristic of to evaluate the performance of an IEEE 802.11e infrastructure network carrying packet telephone calls, streaming video sessions and TCP controlled file downloads, using Enhanced Distributed Channel Access (EDCA). They identify the time boundaries of activities on the channel (called channel slot boundaries) and derive a Markov Renewal Process of the contending nodes on these epochs. This is achieved by the use of attempt probabilities of the contending nodes as those obtained from the saturation fixed point analysis.

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