摘要
针对目前网格资源管理中存在的调度机制与信任机制分离、资源调度过多依赖于性能服务质量(QoS)的缺陷,讨论了基于信誉QoS的网格资源调度问题.分析了全局可信度模型,提出了基于信誉QoS的网格资源调度算法.该算法在保证服务安全性和可靠性的同时兼顾了网格负载平衡.实验结果表明,该算法在保证服务质量、维护系统性能和抵御恶意节点攻击等方面具有良好的综合性能.
In order to deal with such defects existing in present grid resource management as separation between scheduling mechanism and trust mechanism and over-dependance of resource scheduling on performance-QoS （quality of service）, this paper discusses grid resource scheduling based on reputation-QoS. The global trust model is analyzed, and a grid resource scheduling algorithm based on reputation-QoS is proposed, which can provide not only service safety and reliability but also grid load balance. Experimental results indicate that the proposed algorithm presents satisfactory overall performance in terms of ensuring service quality, maintaining system performance and defending against malicious peers.
出处
《信息与控制》
CSCD
北大核心
2009年第2期170-175,181,共7页
Information and Control
基金
江苏省自然科学基金资助项目(BK200656)
