%0 Journal Article %T Normal Measure Based Multi-Constrained Path Selection
基于矢量测量的多约束路径选择 %A ZHENG Yan-Xing %A WANG Xiao-Qing %A TIAN Jing %A
郑彦兴 %A 汪晓庆 %A 田菁 %J 软件学报 %D 2007 %I %X Multi-constrained path (MCP) selection is one of the great challenges that QoS routing (QoSR) faces. Existing algorithms cannot make a good tradeoff among computation complexity, response speed and preventing from losing feasible solutions. Furthermore, neither linear path length function (LPLF) nor non-linear path length function (NLPLF) alone can solve QoS routing problems. A novel normal measure based path length function is defined and based on it, a normal measure based MCP (NMMCP) algorithm is proposed to solve m-constrained MCP problems. NMMCP makes a good tradeoff not only between on-demand computation and pre-computation, but also between LPLF and NLPLF based algorithms. By introducing Pareto optimal mechanism, NMMCP has nonlinear look-ahead ability. Extensive simulations show that NMMCP is very efficient when both performance and computation cost are taken into account. %K multiple-constrained path selection %K multiple objective optimization %K Pareto optimal %K look-ahead
多约束路径选择 %K 多目标优化 %K Pareto最优 %K 前瞻 %U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=8240383F08CE46C8B05036380D75B607&jid=7735F413D429542E610B3D6AC0D5EC59&aid=12E14741D17BD620&yid=A732AF04DDA03BB3&vid=13553B2D12F347E8&iid=38B194292C032A66&sid=9BF3B0483F192149&eid=9107B2E171152411&journal_id=1000-9825&journal_name=软件学报&referenced_num=0&reference_num=4