Modelling Cellular/Wireless LAN Integrated Systems with Multi-Rate Traffic Using Queueing Network

In this paper, we model an integrated system of cellular and wireless local area networks (WLANs) with multi- rate traffic as an open network of Erlang loss systems. A network topology representation of the system is used to facilitate the analysis of handover traffic rates. The performance measures of blocking probabilities and dropping probabilities are calculated using the Erlang fixed-point method. An example scenario is set up and the numerical results show a good agreement with the realistic situation.