[기계전공대학원세미나] (10월 9일) New Frontiers in Wireless Sensor Networks: Heterogeneity and Mobility

1. 제 목 : New Frontiers in Wireless Sensor Networks: Heterogeneity and Mobility

2. 일 시 : 2009년 10월 9일 (금) 16:30-17:30

3. 연 사 : Songhwai Oh
(School of Electrical Engineering and Computer Science, Seoul National Univ.)

4. 장 소 : 301동 105호 강의실

5. 연사약력 :
Songhwai Oh is an assistant professor in the School of Electrical Engineering and Computer Science at the Seoul National University. His research interests include cyber-physical systems, wireless sensor networks, robotics, estimation and control of stochastic systems, multi-modal sensor fusion, and machine learning. He received all his degrees in Electrical Engineering and Computer Sciences (EECS) at UC Berkeley (B.S. with highest honors in 1995, M.S. in 2003, and Ph.D. in 2006). Before his Ph.D. studies, he worked as a senior software engineer at Synopsys, Inc. and a microprocessor design engineer at Intel Corporation. In 2007, he was a postdoctoral researcher in EECS at UC Berkeley. From 2007 to 2009, he was an assistant professor of Electrical Engineering and Computer Science in the School of Engineering at the University of California, Merced.

6. 내용요약 : 
Recently, we have been witnessing dramatic advances in computing, low-power wireless communication, and micro-electromechanical sensors (MEMS) which are revolutionizing our ability to build massively distributed, easily deployed wireless sensor networks (WSNs). In a wireless sensor network, an ad-hoc wireless network is formed by millimeter-scale electromechanical devices. These devices, called "motes", are provided with their own power supply and equipped with a wide range of sensors (e.g., acoustic, vibration, acceleration, pressure, temperature, humidity, magnetic, and biochemical sensors). The ever-decreasing cost of hardware and steady improvements in software will make wireless sensor networks ubiquitous in many aspects of our lives such as building comfort control, environmental monitoring, traffic control, manufacturing and plant automation, service robotics, and surveillance systems. Wireless sensor networks can offer access to an unprecedented quantity of information about our environment, bringing about a revolution in the amount of control we have over our environment. The research in WSNs has traditionally focused on fixed low-bandwidth sensors (e.g., acoustic, vibration, and infrared sensors) that limit the ability to identify complex, high-level physical phenomena. This limitation can be addressed by adding mobility to the motes to improve coverage and network bandwidth or integrating high-bandwidth sensors, such as image sensors, to provide visual verification, in-depth situational awareness, recognition, and other capabilities.
In this talk, I will first describe the recent development in the wireless sensor network technology and research activities. I will present the demonstration of multi-target tracking and pursuit-evasion game using wireless sensor networks conducted at the Defense Advanced Research Projects Agency (DARPA) Network Embedded Systems Technology (NEST) Final Experiment in 2005. Novel algorithms and system architecture used in the demonstration will be described. Then, I will describe challenges and our research activities in two new frontiers in wireless sensor networks: heterogeneity and mobility.

7. 문 의 : 기계항공공학부 박종우 교수(☏ 880-7133)