Call admission control and congestion control for integrated packet networks

Call admission and congestion control mechanisms are the integral parts of any Quality of Service (QoS) design for computer networks that support integrated traffic. In this paper, we propose an call admission control algorithm and a congestion control algorithm for cluster based networks, which are used in a various set of applications that require QoS guarantees. We mainly consider queue length as a main parameter to provide service to the client. Scheduler will keep the track of all the necessary information about the various servers i.e., server which is busy, in which server the queue length is less etc. As the clients arrive for service, scheduler will check out the queue length of the packets and status of the server, then accordingly route the clients request to the desired idle server, if the server is busy, packets will be queued up.