计算机学院学术论坛报告

主题报告：应用于无线感测网络行动数据收集点之实时数据传送机制
报 告 人：王英宏[Tamkang University，台湾]
报告时间：11月 11日（周四）9: 00～10: 00
报告地点：上海大学延长校区行键楼734
邀 请 人：骆祥峰 副研究员

报告摘要：在无线感测网络下，传感器节点(Sensor Node)会将自身所感测到的数据，透过多点跳跃(Multi-hop)的方式将数据传给数据收集点(Sink)，而邻近资料收集点的传感器节点在多点跳跃的情况下会产生热点(Hotspot)问题而成为整个网络的瓶颈，且在较大型的网络环境下的感测数据实时性将大幅下降。为此本论文提出了一个可以支持多行动资料收集点(Multiple Mobile Sinks)的数据传送机制。在此方法中，假设行动数据收集点搭载着定时器装置且彼此时间同步，透过周期性更新传感器节点的时间戳记值(Time Stamp)，当感测事件发生时，数据来源端(Source Node)利用广播(Broadcast)的方式将数据传递给自身的邻节点，而各邻节点透过比对自己与来源端的时间戳记值来决定是否继续将此资料广播出去，依此反复进行便可以将数据传递至数据收集点且不需要任何的位置信息即可运作。

报告人简介： Dr. Wang is a professor in Department of Computer Science and Information Engineering of Tamkang University since 1996. He received the B.S. degree in Information Engineering from Chung-Yuan University, and the M.S. and Ph.D. degrees in Information Engineering from the Tamkang University, in 1992 and 1996, respectively. From 1988 to 1990, he worked in the Product Development Division of Institute of Information Industry (III). From 1992 to 1996, he was a lecturer in the department of computer science and information engineering of Tamkang University. From August 1st, 1996 to January 31, 2008, he was an associate professor in the department of computer science and information engineering of Tamkang University. He promoted to be a professor of the department of computer science and information engineering of Tamkang University from February First, 2008. From August 1st, 2004 to July 31, 2008, he served as Chairman of the department of computer science and information engineering, Tamkang University. His current research interests are Wireless Communication, Mobile Agent Technologies, Software Engineering, and Multimedia Database System. He has nearly 100 technological papers published on International journals and International conference proceedings, he also join many International activities been program committee, workshop chair, session chair and so on. He had been invited as Visiting Researcher in The University of Aizu, Japan, from Jan to March 2002.