A real-time scheduling policy for multimedia applications on broadcast networks

Abstract

Multimedia applications have become some of the most important applications on high speed local and metropolitan area networks. One of the major characteristics of multimedia traffic is the real-time constraint of packets. Furthermore, in multimedia applications, packets of different applications may have different levels of priority. Hence, a proper scheduling policy is necessary to schedule packets with different priorities and real-time constraints. This paper presented a scheduling policy for real-time traffic with priorities on broadcast networks to reduce the probability of packet loss due to exceeding the real-time constraint. Moreover, if packet loss is unavoidable, this scheduling policy will avoid dropping the packets with high priorities.