Performance Evaluation of Admission Control for Calls with Time-Varying Bandwidth Requirement in Wireless Cellular Networks
Xiao Xuan · Mini-micro Systems · 2004
The call admission control schemes have effect on QoS of calls and channel utilization in wireless cellular networks. In this article, we use Markov process to derive the analytical model of system performances (e.g. call's handoff dropping probability, concurrent dropping probability, blocking probability and channel utilization) considering that the bandwidth requirement of a call is time varying. Then, by the results of numerical example, it is analyzed that how the system performances change with system load, the users' mobility and call's holding time.