TY - JOUR
T1 - Performance analysis and estimation of call admission policy parameters for multiple traffic classes in wireless ATM networks
AU - Abdallah, Mohamed M.
AU - El-Hadidi, Mahmoud T.
AU - El-Sayed, Khaled M.
PY - 1999
Y1 - 1999
N2 - In this paper we propose an admission control policy for wireless ATM networks. The policy is based on the well know method, threshold-based guard channel policy. We modify it to deal with two different types of traffic classes; namely: CBR traffic class and ABR traffic class where we assume two different thresholds, one for each traffic class. In addition, we propose to buffer the handoff ABR calls if no free channels are available rather than rejecting them. For handoff CBR calls, we propose two methods, namely: a blocking method and preemptive method. For the blocking method, we reject the handoff CBR calls if no channels are available. For the preemptive method, we accept handoff CBR calls in case of no available channels if ongoing ABR calls exist where we buffer one of them in order to serve the handoff CBR call. We study the effect of the thresholds, buffer size and the application of the proposed methods on call blocking probabilities. Based on these results. We develop in the second part of the paper an algorithm that uses the proposed policy to estimate the appropriate thresholds and buffer size which meet a certain required call blocking probabilities for each traffic type.
AB - In this paper we propose an admission control policy for wireless ATM networks. The policy is based on the well know method, threshold-based guard channel policy. We modify it to deal with two different types of traffic classes; namely: CBR traffic class and ABR traffic class where we assume two different thresholds, one for each traffic class. In addition, we propose to buffer the handoff ABR calls if no free channels are available rather than rejecting them. For handoff CBR calls, we propose two methods, namely: a blocking method and preemptive method. For the blocking method, we reject the handoff CBR calls if no channels are available. For the preemptive method, we accept handoff CBR calls in case of no available channels if ongoing ABR calls exist where we buffer one of them in order to serve the handoff CBR call. We study the effect of the thresholds, buffer size and the application of the proposed methods on call blocking probabilities. Based on these results. We develop in the second part of the paper an algorithm that uses the proposed policy to estimate the appropriate thresholds and buffer size which meet a certain required call blocking probabilities for each traffic type.
UR - http://www.scopus.com/inward/record.url?scp=4544255531&partnerID=8YFLogxK
M3 - Article
AN - SCOPUS:4544255531
SN - 0536-1486
VL - 1
SP - 404
EP - 410
JO - Conference Record - International Conference on Communications
JF - Conference Record - International Conference on Communications
ER -