OSA Fellow, SPIE Fellow
Nanyang Technological University, Singapore
Prof Shum received his PhD degree in Electronic and Electrical Engineering from the University of Birmingham, UK, in 1995. In 1999, he joined the School of Electrical and Electronic Engineering, NTU. Since 2014, he has been appointed as the Director of Centre for Optical Fibre Technology and was the chair, committee member and international advisor of many international conferences. He was also the founding member of IEEE Photonics Society Singapore Chapter (formerly IEEE LEOS). He is currently the chairman of OSA Singapore Chapter. Prof Shum has published more than 500 journal and conference papers with his research interests being in the areas of speciality fibres and fibre-based devices. His H-index is 38. In recent few years, his publications have been cited about 500-800 times per year. He is SPIE Fellow and OSA Fellow.
Title-- Optical Fiber Sensing System
Abstract--Optical fiber-based devices have been widely deployed in recent years. There are many advantages of using fiber as a sensor. These include electrically-passive operation, light weight, immunity to radio frequency interference and electromagnetic interference, high sensitivity, compact size, corrosion resistance, easily multiplexing and potentially low cost. Several novel fiber-based sensors and technologies developed are presented here, including fiber Bragg grating (FBG) based sensors, photonic crystal fiber (PCF) based sensors, specialty fiber-based sensors and distributed fiber sensing systems. FBGs as instinctive sensors, are ingeniously designed as two-dimensional (2D) tilt sensors, displacement sensors, accelerometers and corrosion sensors here; PCF based evanescent field absorption sensor, PCF induced Mach-Zehnder interferometer and Fabry-Perot refractometer for temperature and refractive index sensing are presented; based on localized surface Plasmon resonant (LSPR) effect, nano-sized fiber tip with gold nanoparticles are demonstrated for live cell index bio-sensing applications.
Guu-Chang Yang (IEEE Fellow)
National Chung Hsing University, Taiwan
Guu-Chang Yang received the B.S. degree from the National Taiwan University, Taipei, Taiwan, in 1985, and the M.S. and Ph.D. degrees from the University of Maryland, College Park, MD, in 1989 and 1992, respectively, all in electrical engineering.
From 1988 to 1992, he was a Research Assistant in the System Research Center, University of Maryland. In 1992, he joined the faculty of the National Chung Hsing University, Taichung, Taiwan, where he is currently a Chair Professor with the Department of Electrical Engineering and the Graduate Institute of Communication Engineering. He was the Chairman of the Department of Electrical Engineering from 2001 to 2004. He co-authored the first-of-its-kind technical book on optical coding theory and its applications to code-division multiple access (CDMA), Prime Codes with Applications to CDMA Optical and Wireless Networks (Norwood, MA: Artech House), in 2002. He contributed one chapter on optical codes to another technical book, Optical Code Division Multiple Access: Fundamentals and Applications (Boca Raton, FL: Taylor & Francis), in 2006. In 2013, he coauthored a classical reference book, Optical Coding Theory with Prime (NY: CRC Press). His research interests include wireless and optical communication systems, modulation and signal processing techniques, and applications of CDMA.
Dr. Yang received the Distinguished Research Award from the National Science Council in 2004 and 2014, and the Outstanding Young Electrical Engineer Award and the Distinguished Electrical Engineering Professor Award from the Chinese Institute of Electrical Engineering in 2003 and 2012, respectively. He also received the Best Teaching Award from the Department of Electrical Engineering, National Chung Hsing University from 2001 to 2004 and in 2008. He served as the Chairman of the IEEE Communications Society (Taipei Chapter) from 2013 to 2014, the Vice Chairman of the IEEE Communications Society (Taipei Chapter) from 2011 to 2012, the Chairman of the IEEE Information Theory Society (Taipei Chapter) from 2003 to 2005, and the Vice Chairman of the IEEE Information Theory Society (Taipei Chapter) from 1999 to 2000. He also served as the Area Coordinator of the Ministry of Science and Technology’s Telecommunications Program in 2014, the Area Coordinator of the National Science Council’s Telecommunications Program from 2012 to 2013, and the Co-Coordinator of the National Science Council’s National Networked Communication Program from 2010 to 2014. He became an IEEE Fellow in 2012 for contributions to optical CDMA. He is currently an Associate Editor of the IEEE TRANSACTIONS ON COMMUNICATIONS, and serves as the Co-Coordinator of the Ministry of Science and Technology’s Development and Applications of Advanced Communications Networking Technologies Program from 2014 to 2018 and Coordinator of the Ministry of Education’s A Talent Cultivation Program for 5G Mobile Broadband Technology from 2018 to 2021.
Title--Channel hopping mechanisms for dynamic spectrum
management in cognitive radio networks
Abstract--Cognitive radio (CR) becomes an attractive technology to alleviate the spectrum scarcity and efficiency problems, for example, created by the evolution of Internet of Things in wireless communications. Channel hopping (CH) is a representative technique in the rendezvous processes that can enhance spectral efficiency and is robust against interference in cognitive radio networks. In this talk, the fundamentals of CH sequence designs in CR ad hoc networks are overviewed, including basic definitions, operating modes, and design criteria and metrics. The desirable characteristics of CH sequences that support low media-access latency, large cardinality, and media-access fairness for CR-based IoT applications are outlined. As channel collisions are inevitable, the concept of channel resolution in CR networks is introduced and a multi-round contention-resolution mechanism is studied. A new rendezvous algorithm to significantly expedite the rendezvous process by equipping multiple radios per user in CR networks is presented.
Prof. Yang Xiao, (IET Fellow)
The University of Alabama, USA
Dr. Yang Xiao currently is a full Professor of Department of Computer Science at the University of Alabama, Tuscaloosa, AL, USA. His current research interests include communications/networks and computer/network security. He has published over 200 SCI-indexed journal papers and over 200 EI indexed refereed conference papers and book chapters related to these research areas. Dr. Xiao’s papers have more than 12000 citations and his h-index is 56, based on Google scholar on Aug. 1 2014. Dr. Xiao was listed among 800 computer science researchers with h-index larger than or equal to 40. His research has been supported by the U.S. NSF, U.S. Army Research, GENI, Fleet Industrial Supply Center-San Diego, FIATECH, and The University of Alabama’s Research Grants Committee.
Dr. Xiao was a Voting Member of IEEE 802.11 Working Group from 2001 to 2004, involving IEEE 802.11 (WIFI) standardization work. He is a Fellow of IET (FIET). He servedrves as a Panelist for the U.S. National Science Foundation (NSF), The Global Environment for Network Innovations (GENI), Canada Foundation for Innovation’s Telecommunications expert committee, and the American Institute of Biological Sciences, as well as a Referee/Reviewer for many national and international funding agencies. He currently serves as Editor-in-Chief for International Journal of Security and Networks and International Journal of Sensor Networks. He had (s) been an Editorial Board or Associate Editor for 15 international journals, including IEEE Transactions on Systems, Man, and Cybernetics: Systems, during 2014 to 2015, IEEE Transactions on Vehicular Technology, during 2007 to 2009, and IEEE Communications Survey and Tutorials, during 2007 to 2014. He served (s) as a Guest Editor for over 20 times for different international journals, including IEEE Network, IEEE Wireless Communications, and ACM/Springer Mobile Networks and Applications (MONET). Dr. Xiao has delivered over 20 keynote speeches at international conferences around the world and gave more than 60 invited talks at different international institutes.
Title--Accountable Logging for Future Computers and Networks
Abstract--Accountability implies that any entity should be held responsible for its own specific action or behavior so that the entity is part of larger chains of accountability. One of the goals of accountability is that once an event has transpired, the events that took place are traceable so that the causes can be determined afterward. The poor accountability provided by today’s computers and networks wastes a great deal of money and effort. This is due to the simple fact that today’s computing and network infrastructure was not built with accountability in mind. In this talk we introduce our previous work: accountable logging methodology called flow-net. We apply this methodology to many applications ranging from operating system design to computer networks.