An Analytical Simulation Technique Suitable for
Performance Evaluation of Various CSMA/CD LANs

Mohamed F.Ababneh & Ibrahiem M.M.El Emary
Prince Abdullah Bin Ghazy College for Science & Information Technology,
Al-Balqa Applied University, Al-Salt, Jordan
E-mail:  Omary57@hotmail.com & ababneh@bau.edu.jo

Abstract
One of the growing areas in the telecommunication industry is the internetwork of the increased proliferation of computers, particularly via local area network (LAN). Many commercial LAN which use CSMNA/CD as an access protocol, claim the ability   to support hundreds of stations. In this paper, we present a tool for use in performance studies of such networks when the number of stations is large. The proposed tool is a simulation technique, which requires partionning the network stations into a few primary stations and the remainder as background stations. The background stations are modeled as a group by a back ground algorithm based on a dynamic CSMA/CD model which uses a set of probabilities and sampling to produce in a recurrent manner, a stochastic sequence of busy / idle periods.
 Through simulation results, it is proving that the suggested simulation technique is more powerful and efficient than the discrete-event simulation especially when the number of network stations is large enough because the probabilistic simulation technique proposed in this paper needs less run time on the computer and small storage capacity.
Keywords: Local Area Networks, Simulation Techniques, Validation