关键词: 位置更新, 呼叫阻塞率, 呼叫移动比

Abstract:

In case of failed location update, a significant consequence is the incapability when establishing the valid route for the potential call connection; it will seriously degrade the network performance. A quantitative analysis of the location update failure effect on the call blocking probability in the wireless network is performed. For the sake of general applicability, the call blocking probability is formulated with the call interarrival time is exponentially distribution and the location area residence time is generally distribution. It is shown that the next call blocking probability is related to location update failure probability, call to mobility ratio and the previous call status. Numerical examples are presented to show the interaction between the call blocking probability and location update failure probability. Discussions on the sensitivity of teleparameters are also given.

Key words: location update, call blocking probability, call to mobility ratio