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中文摘要：
无线传感器网络是目前研究的热点,事件驱动数据收集是无线传感器网络中一种重要的信息采集方式。由于节点普遍具有能量水平低、通信能力弱、易损坏等特点,而用户普遍需要网络能长时间稳定工作或尽快获得数据,因此,如何以低能耗、低延迟、高可靠的方式完成事件驱动数据收集是研究的难点。介绍了事件驱动数据收集的概念和特点,对已有的典型事件驱动数据收集协议进行了系统的分析和对比。通过探讨存在的挑战和亟待解决的关键性问题,为下一步更深入的研究指明了方向。
英文摘要：
Wireless sensor network is a hot spot in current research,and event-driven data gathering is an important way of information collection for wireless sensor network.The nodes in the network just have limited energy and their communication abilities are weak.Moreover,the nodes are easy to be broken.However,users often need the network can provide long time or low delay services.Therefore,how to gather all data in the network with a way of low energy consumption,low delay and high reliability,is a difficult problem.This paper introduced the concepts and features of the event-driven data gathering,and gave systematic analysis and comparison on existing typical protocols.By discussing challenges and key problems in event-driven data gathering,the next research orientation will be found.
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Performance Analysis of Opportunistic Scheduling in Wireless Multimedia and Data Networks using Stoc
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