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DOI:
Journal of Software:2011.22(zk2):129-136

TaskShadow-V:基于虚拟化的跨移动设备用户任务迁移
徐羽琼,谌宗佳,潘纲,李石坚
(浙江大学 计算机科学与技术学院,浙江 杭州 310027)
TaskShadow-V: User Task Migration Across Mobile Devices Based on Virtualization
XU Yu-Qiong,SHEN Zong-Jia,PAN Gang,LI Shi-Jian
(College of Computer Science and Technology, Zhejiang University, Hangzhou 310027, China)
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Received:July 20, 2011    Revised:December 01, 2011
> 中文摘要: “一人多机”模式的兴起和用户在物理环境之间的移动需求,为任务迁移带来了多方面的挑战,如连续性、透明性、异构性、普遍性等.提出了基于虚拟化的“虚拟用户空间”概念,建立了基于虚拟用户空间的任务迁移框架TaskShadow-V 来应对这些挑战.虚拟用户空间保证了用户任务的连续性和跨移动终端的迁移能力.同时,提出基于情境的智能迁移决策机制来保证任务迁移过程的透明性,其以虚拟用户空间为粒度来管理用户任务的迁移,并根据当前情境信息自动地做出迁移决策.通过若干迁移实验,验证了所提出的迁移框架的有效性.
Abstract:The rise of “Multiple devices per user” computing model and the mobility requirement of moving across physical environments bring great challenges to task migration in four aspects: continuity, transparency, heterogeneity and generality. This paper proposes the concept of “virtual user space”, and establishes a task migration framework based on a virtual user space, called TaskShadow-V, to address these challenges. Virtual user space guarantees the continuity of user tasks and capabilities of migrating across mobile devices. Meanwhile, the context-based mechanism of intelligent migration decision-making is proposed to ensure transparency of task migration. This mechanism employs virtual user space as the migrating granularity and uses context information to automatically make the decisions of migration. The study conducts an experiment to verify the effectiveness of proposed TaskShadow-V framework.
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基金项目:国家高技术研究发展计划(863)(2011AA010104); 浙江省自然科学基金(Y1090690); 浙江省钱江人才计划(2011R10078) 国家高技术研究发展计划(863)(2011AA010104); 浙江省自然科学基金(Y1090690); 浙江省钱江人才计划(2011R10078)
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徐羽琼,谌宗佳,潘纲,李石坚.TaskShadow-V:基于虚拟化的跨移动设备用户任务迁移.软件学报,2011,22(zk2):129-136

XU Yu-Qiong,SHEN Zong-Jia,PAN Gang,LI Shi-Jian.TaskShadow-V: User Task Migration Across Mobile Devices Based on Virtualization.Journal of Software,2011,22(zk2):129-136