MITIGATION OF SUBSEQUENT REQUEST PROBLEM IN PROBE BASED ADMISSION CONTROL FOR MULTICAST

I Ali, P Sheik, Abdul Khader, Assoc Prof
2013 Journal of Theoretical and Applied Information Technology   unpublished
Real-time applications such as multimedia streaming and video conferencing have quite stringent Quality of Service (QoS) requirements from the network, because they are more sensitive to available bandwidth and loss rate than non real-time traffic. To provide scalable and simple Quality of Service (QoS) mechanism for multicast services, Probe-Based Multicast Admission Control (PBMAC) scheme was proposed. PBMAC encounters subsequent request problem which degrades system performance significantly
more » ... mance significantly when the network traffic is heavily loaded. In this paper, this problem is investigated and Improved Probe-Based Multicast Admission Control (IPBMAC) scheme is then proposed to overcome this problem. The simulation shows that this improved multicast admission control results in reduction of the bandwidth requirement for probe flows and increase of the available bandwidth.
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