Performance Analysis and Estimation of Call Admission Control Parameters in Wireless Integrated Voice and Data Networks

We propose an admission control policy for wireless multimedia networks that is based on the well known threshold-based guard channel method. The new scheme deals with two different types of traffic classes; namely: voice and data. We assume two different thresholds, one for each traffic class. In addition, we propose to buffer the handoff data calls if no free channels are available rather than rejecting them. For handoff voice calls, we propose two methods, namely: a blocking method and a preemptive method. For the blocking method, we reject the handoff voice calls if no channels are available. For the preemptive method, an ongoing data call can be buffered and its channel allocated to the handoff voice call. We study the effect of the thresholds, buffer size and the application of the proposed methods on call blocking probabilities. It is shown that the new call blocking probabilities are only affected by the threshold values. Meanwhile, the data handoff blocking probability exhibit...

• Type: Journal
• Year: 2000
• Where: ETT
• Authors: Mahmoud T. El-Hadidi, Khaled M. F. Elsayed, Mohamed M. Abdallah
• Keywords: Admission Control Policy, Education, ETT 2000, Handoff Voice, Preemptive Method