XUE Qiang1, ZHANG Guang-zhao1. Research on load-adaptive slotted priority queue scheduling providing telecomm-grade IP QoS[J]. 2008, (5): 93-99.DOI:
提供电信级QoS的负载自适应时隙PQ算法研究
摘要
为解决实时业务流在IP网承载时遇到的高QoS参数与带宽公平性的矛盾
提出了一种负载自适应的时隙PQ(priority queue)算法。根据实时业务流的负荷参数
选择合适的触发周期τ转发实时业务流
将时延控制在要求的范围内
并大大减少了抖动
同时提高了非实时业务流的转发性能。通过理论推导与仿真证明了LASPQ(load-adaptive time slotted priority queue)在传输实时业务流时比PQ、WFQ等传统队列具有优越性。
Abstract
To solve the problem between the high QoS requirement and bandwidth impartiality when the real-time traffic transmitted in IP network
load-adaptive slotted priority queue(LASPQ) was introduced. According to the load of the real-time traffic
it was transferred with an appropriate triggering period τ. LASPQ keep real-time traffic’s delay
jitter in need
while improving the transferring efficiency of non-real-time traffic. It is proven from theory and simulation that LASPQ is better than traditional queue schemes such as PQ