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802.11e enhanced distributed channel access (EDCA) introduces different parameters to provide differentiated QoS support for various traffic classes. This brings additional difficulties and complexities to the traditional per-slot based Markov chain modeling techniques, where the transmission probability relies on generic time slots. Channel access cycle based modeling, which does not depend on per-slot...
The capture effect can occur in IEEE 802.11 distributed coordination function (DCF) wireless systems when packets arrive with different powers. Packets with high power can effectively swamp low power packets, such that they are received successfully, when otherwise a collision would have occurred. We present a network performance prediction model that accurately incorporates the capture effect into...
Performance analysis is a key issue in parallel network simulation. This paper proposes a new mechanism of parallel network simulation performance prediction. Analyzing the key factors of impacting parallel simulation performance, six parameters which may determine the time-cost of network simulation is presented. Then we adopt the Back Propagation (BP) network to approximate to the non-linear relation...
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