您的位置 : 报告人：陈红阳，东京大学博士，富士通研究所研究员
题目：Accurate and efficient node localization in wireless sensor networks
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Accurate and Efficient Node Localization in Wireless Sensor Networks
Dr. Hongyang Chen
Researcher at Fujitsu Laboratories Limited
Abstract
Sensor positioning is a fundamental and crucial issue for the wireless sensor network (WSN) operation and management. Localization algorithms play important role for many applications of WSN. Time-of-arrival, received signal strength and/or angle-of-arrival measurements between sensor pairs are commonly used to estimate the node positions. Nevertheless, a major requirement for the WSN localization problem is to provide location estimates which are accurate via efficient utilization of the available pair-wise measurements and low-cost because of the limited processing and communication capabilities resulted from the nodes battery constraint. Furthermore, the WSN connectivity is subject to changes due to node addition and failure, nonstationary environment as well as sensor mobility. It is also important to detect and discard non-line-of-sight measurements, which arise when direct signal transmission paths between sensor pairs are blocked, because they will introduce large errors in position estimation. In this talk, the above challenges will be considered and we propose to utilize the statistical signal processing theory and techniques to derive accurate, robust and computationally attractive WSN localization algorithms. The bias and variance performance measures of the developed algorithms will also be produced.
Biography
Hongyang Chen was born in
