An efficient communication scheme for media on- demand services with hard QoS guarantees

摘要

The critical issue of multimedia communications is to provide quality of service(QoS) guarantees while system resources are efficiently used. The system utilization is usually low when hard QoS guarantees are required, due to 'burstiness' of multimedia traffic. We porpose a scheme that provides hard QoS guarantees for media on-demand Applications while fully utilizing system resources. The basic idea of the scheme is to Convert variable bit-rate streams into constant bit-rate streams for transmission. The Constant bit-rate is equal to the average bit-rate of the stream.