Numerical Solution of One GSM Cell Using MOSEL-2 Language

Abstract: This paper presents a numerical solution of one GSM cell using the Modeling Specification and Evaluation Language (MOSEL-2) which is the new version of MOSEL, developed at the University of Erlangen, Germany. In this regard, the frequency spectrum of GSM cell is divided into two layers (super and regular) according to the intelligent underlayoverlay principle. Based on this principle, the super frequencies have better Carrier-to-Interference (C/I) ratio than the regular frequencies and usually used near the base station in hot spot areas, while the regular frequencies are used for the whole cell. In this paper, and based on the above assumptions, the queuing model of GSM systems is suggested and the numerical solution of this model is presented by MOSEL-2. As a result of this, the critical performance measures such as: loss probability, mean queue length and utilization are presented and discussed. Keywords: Performance modelling, GSM systems, MOSEL-2, underlay-overlay, performance measures, queuing model