Throughput Modeling of Differentiation Schemes for IEEE 802.11e MAC Protocol

Provided by: Institute of Electrical & Electronic Engineers
Topic: Mobility
Format: PDF
Most recent analyses on IEEE802.11e Quality of Service (QoS)-aware Enhanced Distributed Coordination function (EDCA) require a large degree of complexity, making it difficult to apply them to a wide range of parameter settings for the evaluation of service differentiation mechanisms supported in EDCA, including the Contention Window (CW) and Arbitration Inter-Frame Space (AIFS) mechanisms. In this paper, the authors propose an improved analytical model to analyze the throughput of EDCA with AIFS and CW differentiation schemes. The model is simplified by decomposing the problem into two easily solved Markov chains that can jointly be solved by numerical method.

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