PSS: A QoS-Oriented and Priority-Based Packet Scheduling Structure
PSS：一种提供服务质量保证的区分优先级的分组调度架构

To solve the QoS issue of the Internet including multi-services,a Priority-based Scheduling Structure(PSS)designed for high-speed packet networks is proposed.PSS divides packet scheduling into high-prioritysection and low-priority section.In the high-priority section,a sorted-priority algorithm with low implementationcomplexity is presented to avoid bandwidth preemption and to control effectively service rates of high-priorityservices.In the low-priority section,an improved framed-based algorithm is proposed,which decreases not only thealgorithm complexity but also the hardware implementation cost.Computer simulation results as well as theoreticanalysis show that the PSS mechanism has excellent performance in terms of the implementation complexity,fairness and delay properties.