Service curve proportional sharing algorithm for service-guaranteed multiaccess in integrated-service distributed networks

We introduce the service curve proportional sharing concept to guarantee quality-of-service (QoS) in multimedia distributed networks. Based on this concept, we systematically develop a scheduling policy packetized service curve processor sharing (PSCPS) along with the corresponding feasible service curve allocation condition and practical implementation procedure. It is shown that PSCPS possesses the more desirable property to provide QoS-guaranteed service and best-effort service at the same time. It is further demonstrated that head packet information is sufficient for PSCPS operating in distributed environments including wireless channels. Implementation with only head packet information and an effective information exchange scheme are successfully developed. Therefore PSCPS is an attractive scheduling policy in QoS-guaranteed distributed networks