A FEEDFORWARD-PLUS-FEEDBACK CONGESTION CONTROL SCHEME FOR STORE-AND-FORWARD PACKET-SWITCHING NETWORKS

A feedforward-plus-feedback control scheme is presented to prevent con gestion in store-and-forward packet-switching networks. The control sc heme consists of two algorithms: an input traffic adjustment algorithm and a control signal computation algorithm. Specifically, the input t raffic adjustment algorithm employs a proportional-fairness policy in resource allocation, such that the admitted traffic sate into the netw ork is proportional to the offered traffic rate. The control signal co mputation algorithm to ensure asymptotic stability of the overall syst em in the robust sense and to obtain the desired transient performance in the adaptive sense, with respect to changes of the offered traffic pattern, ave designed.