General Packet Radio Service Performance Evaluation Based on CIR Calculation, Considering Different Radio Propagation Models

General Packet Radio service (GPRS) is a step on the evolution path towards 3
^rd
Generation (3G) mobile radio networks. This paper investigates the effect of using varied Coding Scheme (CS) based on Carrier to Interference Ratio (CIR), that is computed using different radio propagation models. A comparison between these models and a fixed CS is evaluated. A simulator model was developed to study the behavior of data transmission between a GPRS server and data terminals via air interface. Simulation results show the convergence between different radio propagation models, and the capability of using a less protective CS.