MAC Layer Service Time Distribution of a Fixed Priority Real Time Scheduler over 802.11
نویسندگان
چکیده
In this paper, we propose to support a fixed priority real time scheduler over 802.11 protocol called Deadline Monotonic (DM). We evaluate the performances of this policy for a simple scenario where two stations with different delay constraints contend for the channel. For this scenario a Markov chain based analytical model is proposed. From the mathematical model, we derive the probability distribution of the packet service time at MAC layer. Analytical results are validated by simulation using the ns-2 network simulator.
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