Projects

In this research work, we explore the fundamental limits pertaining to the energy dissipation in the process of a single logic bit flip. Since all physical process involving computation, communication and measurement are all related, this research work investigates new paradigms in signal representation; especially the second order statistic the Variance, in order to understand the trade-offs between the system parameters such as energy-per-bit, bit-error-rate etc.

This work is primarily divided into two parts (a) Theory and (b) Design. The first part revolves around information theory and thermodynamics of computation. The later part of this research work is focused on practical realization of variance driven physical systems with applications to RFIDs and low-power & low-latency sensing systems.

In this research, we address the needs of infrastructure to vehicular communication by developing new class of RFID sensors. We employ RF triggered start up mechanism for enabling low-latency battery powered sensors that can operate for decades. Also by embedding the sensors into the infrastructure this framework stand as a secure alternative for navigation. Investigated sensor technology can also act a structural health monitoring platform that enables applications such as civil-infrastructure maintenance and urban traffic monitoring.

In this research, we investigate the feasibility of self-powered sonomicrometry system by employing sensors that operate using harvested energy from the vibrations when placed on surface of cardiac valve. We propose a new class of transducer namely piezo-electric suture that integrates the functionalities of transducer into the tool used during invasive surgery, thus eliminating the challenges like device size overhead which is critical in the conventional approaches. We also propose a new B-scan imaging based communication decoder for efficient transmission of data from implant to the external reader.

In this research, we investigate the use of self powered sensors and data loggers to monitor temperature and ambient RF conditions continuously without the need of batteries or any other active energy sources. These sensors can be used in applications pertaining to supply chain and inventory management.

Also we explore new dynamic authentication protocols using the timer devices and demonstrate novel applications for securing passive electronic devices.