The effect of unreliable wireless channel on the call performance in mobile network

In this paper, we propose a model to study the call performance in mobile network taking into account the inherent time varying wireless channel. The performance metrics call complete probability and call complete ratio are introduced and further derived with the general call holding time. The impacts of the wireless channel error characteristics and the system parameters on the call performance are illustrated and discussed. The sensitivity problem with respect to the call holding time distribution is investigated. The result indicates that both call complete probability and call complete ratio exhibit a significantly different variation under different call holding time. The analytical model is verified by simulation result.