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A New Modelling Approach to Represent the DCF Mechanism of the CSMA/CA Protocol

  • Marco Scarpa
  • Salvatore Serrano
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 10378)

Abstract

In this paper, a Markovian agent model is used to represent the behavior of wireless nodes based on CSMA/CA access method. This kind of network was usually modeled by means of bidimensional Markov Chains and more recently using semi-Markov process based models. Both these approaches are based on the assumptions of both full load network and independence of collision probability with respect to retransmission count of each packet. Our model inherently releases the latter hypothesis since it is not necessary to establish a constant collision probability at steady state.

Here, we investigate the correctness of our approach analyzing the throughput of a network based on two IEEE 802.11g nodes when the amount of traffic sent by each one varies. Results have been compared with Omnet++ simulations and show the validity of the proposed model.

Keywords

Contention Window Distribute Coordination Function Percentage Absolute Error Wireless Node Perception Function 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer International Publishing AG 2017

Authors and Affiliations

  1. 1.Department of EngineeringUniversity of MessinaS. AgataItaly

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