Event Details
On Markov Modelling of Random Access in Communication Systems
Presenter: Yousry Salaheldin Abdel-Hamid
Supervisor: Dr. Fayez Gebali and Dr. T. Aaron Gulliver
Date: Mon, April 30, 2012
Time: 10:00:00 - 11:00:00
Place: EOW 430
ABSTRACT
Summary:
An extension to a simple user Markov Chain model for random access is presented. The model is general and can efficiently be used to model a wide variety of MAC protocols that utilize a multichannel random access mechanism. The model is used to investigate the variable radix strategy for the backoff algorithm compared to the fixed base of 2 used in the binary exponential backoff contention resolution. The variable radix model is used to a QoS Markov model for random access to serve two distinct classes of users. Finally, an optimized finite state Markov chain model for the Nakagami-m fading channel is introduced. Simulations are presented to confirm the accuracy of results.