IEEE - CAS Bangalore Chapter, India     CAS Chapter - Region 10
Institute of Electrical and Electronics Engineers - Circuits and Systems Society
Goals: To conduct seminars, workshops, and other events pertaining to all aspects of electronic circuits and systems

Event Reports - 2013
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November
Seminar on An Energy Efficient Scalable Medium Data Rate Wideband System Design
November 6, 2013
Texas Instruments India, Bangalore
Report by C.P.Ravikumar

Dr. Debarati Sen (G. S. Sanyal School of Telecommunications, IIT KharagpurDr. Debarati Sen delivered a seminar on "An Energy Efficient Scalable Medium Data Rate Wideband System Design" at Texas Instruments India on November 6, 2013 in Bangalore. The event was jointly organized by IEEE CAS Bangalore Chapter and PragaTI (TI India Technical University), Texas Instruments India.

Dr. Debarati Sen is an Asst. Prof. at G. S. Sanyal School of Telecommunications, IIT Kharagpur. She received her M.Tech from Bengal Engineering and Science University (BESU), West Bengal in 2004. As a National Doctoral Fellow, she obtained her Ph.D. degree in Telecommunication Engineering from IIT, Kharagpur, in 2010. She was associated with the Department of Signals and Systems, Chalmers University of Technology, Sweden as a Postdoctoral Research Fellow from 2011-2012. She was a Chief Engineer during 2009-2011 and Senior Chief Engineer during 2012-2013 at Samsung Electronics, Bangalore. Currently, she is an Assistant Professor in G. S. Sanyal School of Telecommunications, IIT-Kharagpur.
Her research focuses on PHY and MAC Layer of Wireless and Optical Communication Systems, mostly, Coherent Optical Communication, 4G and Beyond, Short-range Communications, Ultra-wideband, MB-OFDM, Synchronization, Equalization, Green communication, 60GHz communication etc. She has 9 patent applications, 10 international journal papers and 20 IEEE conference papers to her credit. She is a recipient of Best Paper Award at Samsung Tech. Conference 2010, IEI Young Engineers Award 2010, Award of Excellence at Samsung Tech. Fair 2010, and IETE N. V. Gadadhar Memorial Award 2013.

The main focus of the talk was on achieving higher data rates with energy efficiency constraints, which is becoming increasingly important. The visible trend towards this is the growing importance of wideband communications e.g. ultra wideband (UWB), and mm-wave communications and the significant focus towards research on energy efficient radio communications by the industry and regulatory bodies. This aspect as the speaker noted is evident from the emergence of the Green-touch consortium and the recommendation from ITU-T that all standardization has to be judged for energy efficiency. In short range wideband communication it was noted that there is an increasing requirement of reduced power consumption and medium data rates of the order of 100 Mbps. Such requirements as the speaker pointed come from new applications wherein scalability of the power consumption with data rates is appealing as in next generation healthcare and personal space communications. Such systems need to be scalable to support a wide range of services with different data rates for variable number of users with variable quality of reliable communication/ service requirements (QoS). Hence, energy efficiency and scalability of data rate, QoS and users were considered as the attributes that are highly attractive in the context of flexible short range green communications.

The talk suggested an enabling technology for energy efficient, scalable, medium data rate (~100 Mbps) wideband system design for short range, and also discussed the key concept for energy efficiency, scalability of power consumption with data rates, and related transceiver architecture. It showed the challenges and critical issues in system design related to interference and the possible technique that overcome these challenges. The speaker also presented performance results in single and multiuser scenario across different channel environment at link level, that quantifies the amount of energy saving compared to existing wideband systems, and illustrates the efficacy of the proposed solution by comparing the performance with Multiband OFDM (MBOFDM) system. While concluding, the speaker discussed the open research problems associated to power efficient short range system design.

Around 30 participatants including IEEE members attended the seminar.

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October
Seminar on How much training is needed in reciprocal multiple antenna wireless links?
October 25, 2013
Texas Instruments India, Bangalore
Report by C.P.Ravikumar

Dr. Chandra R. Murthy (Assistant Professor, ECE department, IISc)A seminar on "How much training is needed in reciprocal multiple antenna wireless links?" was delivered by Dr. Chandra R. Murthy at Texas Instruments on October 25, 2013 in Bangalore. The seminar was jointly organized by IEEE CAS Bangalore Chapter and PragaTI (TI India Technical University), Texas Instruments, Bangalore.

Dr. Chandra R. Murthy is an Assistant Professor at ECE department, IISc. His interests are in digital signal processing, information theory, estimation theory and their applications in the optimization of MIMO, OFDM and CDMA wireless communication systems.

The seminar focused on the problem of data transmission in a single input, multiple output wireless communication system with channel estimation at both transmitter and receiver, from a Diversity-Multiplexing gain Trade-off (DMT) perspective. The speaker considered a two-way communication system with time-division duplexing, which makes it possible to acquire Channel State Information (CSI) at the transmitter through reverse channel training, i.e., by sending a training signal from the receiver to the transmitter.
Several schemes were proposed for reverse channel training where the training signal is dependent on the receiver's knowledge of CSI (which could be acquired, for example, through an initial forward-link training phase). The time-overhead in the training schemes were explicitly accounted for, to show that the approach proposed reverse training and power control schemes offering a significant improvement in terms of DMT compared to conventional channel-agnostic training schemes.
The speaker indicated that the proposed reverse channel training schemes to be a promising technique in improving the reliability and throughput of current and future wireless communication systems, and also acknowledged the technique as a joint work along with Bharath Bettagere.

There were around 25 participatants for the seminar including IEEE members.

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April
Texas Instruments India Educators' Conference Industry-Academia Confluence for Education & Innovation
4-5 April 2013
NIMHANS Convention Center, Bangalore
Report by C.P.Ravikumar
(For a Detailed report please visit the external link that opens in a new tab/Window.)

TIIEC-2013 Texas Instruments India Educators' Conference: "Industry-Academia Confluence for Education & Innovation" was held during April 4-5, 2013. The event was organized by TI India University Program, sponsored by Cranes Software Intl Ltd, and held in collaboration with IEEE Bangalore Section and IEEE CAS Society, Bangalore Chapter.

More than 700 participants attended the conference comprising about 300 educators, 300 students, and 100 professionals from electronics industry. The conference featured the presentation of about 100 innovative technical papers, about 60 innovative student projects that mesmerized the visitors, and about 40 poster papers describing innovative applications.

The inaugural lamp was lit by Dr. Bobby Mitra, President and Managing Director of TI India, Steve Lyle, Director of Diversity & Work Force Development, TI, Sanjay Bhan, Director of Human Resources, TI India, Brad Ruzicka, Director of University Marketing, TI, R. Madhu, Director of University Marketing, TI India, and Dr. K.R.K. Rao. The inaugural electronic lamp, designed by the TI Center of Embedded Product Design, Netaji Subhas Institute of Technology was built using a number of TI ICs, including MSP430 and a number of analog ICs.

Dr. Bobby Mitra addressed the educators and stressed the importance of building things. He urged the students to "soil their hands" and build electronic sub-systems using integrated circuits. Steve Lyle delivered a talk entitled "We share your passion for education" and provided an overview of TI's University program activities both globally and in India. Steve Lyle thanked IEEE Bangalore Section and IEEE Circuits and Systems Bangalore Chapter for the technical co-sponsorship of the event.

The conference included 16 technical sessions which were distributed over two days into four concurrent tracks. A total of 91 papers were presented at the conference. These papers were classified according to the central TI technology used. Experts from TI and from outside TI were invited as Session Chairs. The technical sessions were well attended, with good Q&A following the presentations.

Steve Lyle (TI) inaugurated the Exhibits program. More than 60 projects were demonstrated at the Exhibits floor. Most of these exhibits were put up by students who had won prizes in the first phase of "TI India Analog Design Contest 2013." The exhibits were classified based on application areas, such as Robotics, Industrial Electronics, Automotive, etc.

Brad Ruzicka (TI) inaugurated the Poster Sessions that showcased more than 40 poster papers. The poster papers were also classified based on the application areas. The poster sessions were held during the breaks, when the attendees of the conference visited the booths and interacted one-on-one with the authors. Six post-conference tutorials were held in six parallel tracks during Apr 6-7, 2013. Each of these tutorials was of two-days duration and included lectures and hands-on sessions. The following tutorials were held — "Digital Signal Processing Using OMAP-L318 ", "Internet of Things", "Low Power Embedded Systems Using MSP430 Microcontroller ", "Embedded Android on Beagleboard Introduction to Motor Control " and "Designing Analog Systems. " The tutorials received good response from educators and students.

A panel discussion was held on the topic — "Leveraging the opportunity of ESDM - The role of industry-academia interaction". The panelists were Prof NJ Rao (former Chairman of CEDT, Indian Institute of Science, Bangalore), Mr Ashok Hattangady (Innovator), Mr Sham Banerji (Founder, i2iTelesolutions), and Dr. Sarat Babu (Executive Director, CDAC, Bangalore). The moderator was C.P. Ravikumar of Texas Instruments. Mr. Hitesh Mehta, President of IEEE Bangalore Section, presented certificates to the authors of the papers presented at TIIEC 2013. Brad Ruzicka of Texas Instruments gave away the awards to winners of consolation prizes in the preliminary round of TI India Analog Design Contest 2012-2013. Apart from cash prize, certificates were awarded to the team members. A plaque was presented to the faculty mentor of every winning team. Steve Lyle presented the awards to the winners of the first phase of TI India Analog Design Contest (2012-2013). The "TI India WIN Aspiring Tech-Talent Award" was given to a team consisting of only girl students. There were six teams that qualified, and among them, the team from Madras Institute of Technology was selected by the panel of judges for the award.

Mr K.S. Narahari, Director (Internal Communications) at TI India, gave away the awards for the winners of the "Best Video Demonstrations". Dr. Biswadip (Bobby) Mitra, Managing Director and President of Texas Instruments India gave away the awards for the final round of "TI India Analog Design Contest: 2012-2013."

The event received excellent feedback from many of the dignitaries who were present at the conference and the participants. Many educators who attended the event wrote back to the organizers commending for provoding a great platform for the students to showcase their innovative minds.

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February
Seminar on Microcontroller Platforms for Safety-Critical Applications
18th February 2013
Texas Instruments India, Bangalore
Report by C.P.Ravikumar

Karl Greb (Texas Instruments)A seminar on "FUNCTIONAL SAFETY AND SEMICONDUCTORS" was delivered by Karl Greb, Functional Safety Technologist in Transportation and Safety Microcontrollers at Texas Instruments on February 18, 2013 in Bangalore. The seminar was jointly organized by IEEE CAS Bangalore Chapter and TI India Technical University, Texas Instruments, Bangalore.

Karl Greb is a 15 year veteran of TI having worked in product test, applications engineering, architecture, and systems engineering roles for a variety of end equipment including high reliability mass storage and automotive. Karl is a member of the ISO 26262 standard international working group as well as the SAE Automotive Functional Safety Committee.

In the modern times, more and more electronic content is being used in safety-critical applications such as medical appliances, automotives, railway signaling, etc. Safety is of utmost concern in these applications. Karl Greb explained basic concepts such as reliability, functional safety, security, and availability. He then explained why safety microcontrollers are essential in safety-critical applications. He dwelled on some of the relevant safety standards such as IEC 61508 (useful in home appliances) and ISO 26262 (automotives).

Around 100 people participated in the seminar, including about 15 IEEE members. The highly interactive seminar generated considerable enthusiasm in the participants. The seminar ended with a "Vote of Thanks" by Dr. C.P. Ravikumar, secretary of the IEEE CAS Bangalore Chapter.

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