Distributed source control: a network access control for integrated broadband packet networks

The authors propose a congestion control strategy called distributed source control (DSC), which is designed to address the integration of these diverse traffic types in broadband packet networks. An examination is made of the performance of high-speed continuous-stream data traffic such as large-file transfer and still-image and document retrievals, which are projected to be high runners in future networks and for which congestion control in broadband systems is a serious problem. Their integrability with real-time traffic such as voice and video is studied. With the help of a simulation model of a 150-Mb/s broadband packet network, the improvements in the performance of the different traffic types by using DSC are quantified. The authors also provide guidelines for sizing buffers in the switch and recommend a call-acceptance policy for these traffic types in the network