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A Quality of Service (QoS)-aware Signal to Interference and Noise Ratio (SINR)-based blocking probability model is simulated in this paper to evaluate the performance of networks with Third Generation (3G) interface. But this in turn yields an increased blocking probability and reduces the spectral efficiency. In this paper, the authors employ an empirical modeling approach, by measuring the occurrence of call blocking under ideal conditions, within a specific time period, from an established cellular network. The observed data parameters are used as model predictors during the simulation phase. Simulation results reveal that increased system capacity degrades the performance of the network due to call blocking which the system is most likely to experience, but the rate of blocking could be minimized by properly guarding the SINR threshold levels.
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