Tutorials



San Francisco
Prof. Neelesh B. Mehta
IISc Bangalore

Rate Adaptation and Scheduling in Wideband Cellular Communication Systems

Orthogonal frequency division multiplexing (OFDM) is the physical layer technology of choice in contemporary wideband communication standards such as 4G Long Term Evolution (LTE) and IEEE 802.11 wireless local area networks (WLAN). In order to achieve high spectral efficiencies, these standards employ rate adaptation and scheduling, which exploit the different channel fades seen by different users and also the time-variations in them. In scheduling, the base station (BS) determines which user to allocate to each SC. In rate adaptation, the BS determines the modulation and coding scheme (MCS) to be used for transmission to the scheduled user for each SC. However, in order to enable these techniques, significant feedback of channel state information is needed from the mobiles to the base station. The tutorial will give a contemporary overview of rate adaptation and scheduling in current generation wireless systems, the reduced feedback techniques used to facilitate these, and the analysis and modelling of these sophisticated techniques to characterize and optimize their performance.

Biography: Neelesh B. Mehta received his B. Tech degree in Electronics and Communications Engineering from the Indian Institute of Technology (IIT) Madras, in 1996, and M.S. and Ph.D. degrees in Electrical Engineering from the California Institute of Technology, Pasadena, USA, in 1997 and 2001, respectively. He is a Professor in the Department of Electrical Communication Engineering at the Indian Institute of Science (IISc), Bangalore. Prior to joining IISc in 2009, he served as a research scientist in USA from 2001 to 2007 in companies such as AT&T Research Labs, Broadcom Corporation, and Mitsubishi Electric Research Labs (MERL). His research focuses on wireless communications. He has worked on topics related to 3G, 4G, and 5G cellular communication standards, energy harvesting and green wireless sensor networks, cognitive radio, cooperative communications, multi-antenna technologies, and multiple access protocols. He has published 60+ papers in IEEE journals, 3 book chapters, and 70+ conference papers. He is a co-inventor of 30+ issued US patents on these topics. He served on the Board of Governors of the IEEE Communications Society from 2012-15. He is a Fellow of the Indian National Academy of Engineering (INAE) and the National Academy of Sciences India (NASI). He is a recipient of the Swarnajayanti Fellowship, NASI-Scopus Young Scientist award, INAE Young Engineer award, and the Hari Om Ashram Prerit Vikram Sarabhai Research Award. He serves as an editor of the IEEE Transactions on Communications and as the Chair of the Executive Editorial Committee of the IEEE Transactions on Wireless Communications. In the past, he has served as an editor for the IEEE Wireless Communications Letters, IEEE Transactions on Wireless Communications, and Journal of Communications and Networks.


San Francisco
Prof. Shekher Verma
IIIT Allahabad

Dimensionality Reduction

The "curse of dimensionality" ails machine learning techniques when the data is large and high dimensional. This problems needs to be addressed before the application of classification/regression techniques. In this tutorial, both linear and non linear dimensionality reduction techniques shall be discussed.



San Francisco
Prasenjit Das
Lead- Cyber Security
Government Industry Solutions Unit (ISU)
Tata Consultancy Services

Cyber Security

Adaptation of eGovernance framework has shown positive impact on citizen centric service delivery, in our country. Over the years we have observed significant increase in digital activities nationwide. Thanks to our Nation's Prime minister for his digital visions and motivation to promote use of technology in service delivery. Eventually, range of Cyber Security threats have also grown exponentially and importance of eGovernance Security is felt in this age of volatile and vulnerable Cyber Space. An effective Cyber Security strategy supported by robust Enterprise Security Architecture is the key to manage all modern day cyber security threats in eGovernance space. My talk will highlight recent cyber security events along with mitigation approach, followed by case study of a successful eGovernance security implementation in a mission mode project of national importance.

Biography: Prasenjit Das holds a M.Tech Degree from IIT Roorkee. Currently operating as CISO (Chief Information Security Officer) & Head of Cyber Security in Tata Consultancy Services (Govt Business Unit). He has 24 years of industry experience in delivery of leading edge IT & Security technologies worldwide. Over the years, acquired hands on Cyber Security management experience in large mission mode projects of national importance namely Corporate Affairs, Passport, Income Tax, Excise & Customs, UK Home Office and many more state govt. projects across the nation. He has received National Recognition for Best eGovernance Security Implementation twice, by DSCI (NASSCOM) in 2013 and Secure IT Award in 2014. In March 2017, won 'Most Innovative Security Implementation' award in TCS. Recently, in June 2017, received Certificate of Special Achievement Award in Cyber Security from Hon. Minister of External Affairs Smt Sushma Swaraj and Sri Manoj Sinha, Minister of Communication..