摘要
在多重链路上联网络环境下,采用并行路由搜索的思想寻找最优路径,能够获得较好的路径寻优结果,并且算法的时间复杂度较低。给出一种两级并行QoSR算法,将多重链路环境按一定规则划分为若干分区,为每个分区分配一定数量的QoS度量并行处理器和1个分区处理器,在各个分区分别采用QPAS算法,由QoS度量并行处理器并行计算出各分区内的QoS度量Pareto最佳路径,最终由分区处理器调用最短路径并行算法完成分区间代价最小路径的计算。
In this paper, we provide a two level parallel QoS routing algorithm based on network partition, which divides multiple links network into several route divisions according to connection rules and allocates QoS metrics processors and partitioning processors to each division. Then, we use QPAS algorithm in each division to find respectively the Pareto optimal path of QoS metrics in every division by parallel computing with QoS metrics processors. The result of experiment shows, parallel Pareto route searching can get lower time complexity and better result of routing optimization.
出处
《计算机应用与软件》
CSCD
2009年第4期204-207,共4页
Computer Applications and Software
基金
广东省自然科学基金(05011896)
广东省高校自然科学研究项目(Z03080)
