The IEEE 802.11 backoff algorithm is very important for controlling system throughput over contentionbased wireless networks. For this reason, there are many studies on wireless network performance focus on developing backoff algorithms. However, most existing models are based on saturated traffic loads, which are not a real representation of actual network conditions. In this paper, a dynamic control backoff time algorithm is proposed to enhance both delay and throughput performance of the IEEE 802.11 distributed coordination function. This algorithm considers the distinction between high and low traffic loads in order to deal with unsaturated traffic load conditions. In particular, the equilibrium point analysis model is used to represent the algorithm under various traffic load conditions. Results of extensive simulation experiments illustrate that the proposed algorithm yields better performance throughput and a better average transmission packet delay than related algorithms.
|Journal||International Journal of Wireless and Mobile Networks (IJWMN)|
|Publication status||Published - Dec 2015|
Bibliographical noteThe full text is available from: http://dx.doi.org/10.5121/ijwmn.2015.7605
- IEEE 802.11
- Backoff algorithm
- Contention window threshold
- Equilibrium point analysis
- control backoff time algorithm
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- Research Centre for Computational Science and Mathematical Modelling - Associate
- School of Computing, Electronics and Maths - Assistant Professor Academic
Person: Teaching and Research