Research Areas

Current Research Areas

  • Digital VLSI Algorithms and Architecture Design

  • Analog/Mixed-Signal Circuit Design

  • Application-Specific-Integrated-Circuits (ASIC) and Field-Programmable-Gate-Array (FPGA) implementations of digital/analog/mixed-signal designs

  • Mixed-Signal Architectures of wireless communication baseband and CMOS circuitry of analog RF section for the transceivers of Body Area Network Systems

  • Low-power Transceiver (Baseband/RF) Design

  • VLSI for Digital Signal Processing and Communications

  • Algorithm and VLSI architecture Design using Vedic Mathematics for modern computing applications

  • Embedded System Design using FPGAs

  • Design and Implementation of Quantum Algorithms and Architectures for Efficient Quantum Computing Applications

Open Positions

  • Ph.D. Scholar: Advertisement on Project Funding Opportunities are often on the IIITG website. Part-Time/Self-financed or people who have external funding from other government/private agencies are also eligible to apply

  • Interns: If anyone is interested in short 2-4 months internships (under-grads/post-grads), then send an email with the subject “Internship:(duration):(interest)”

Ph.D. Thesis (Self)

Supervisors: Prof. Anil Mahanta (Former Professor, IIT Guwahati) & Prof. Shaik Rafi Ahamed (IIT Guwahati)

Title: Design of IR-UWB Transmitter and Receiver for IEEE 802.15.6 Wireless Body Area Network System

Description: The need for health-care systems using the technological advancements in wireless communications has witnessed the design of low power, intelligent and miniaturized invasive/non-invasive medical devices to be used on or around the human body or implanted in the human body for constant health monitoring and advice. This special type of wireless sensor networks (WSN) are referred to as Wireless Body Area Networks (WBAN). As the sensors are battery operated, it is of utmost importance that such nodes consume minimal energy. Thus the design of energy efficient and low-power transceiver architecture which greatly increases battery life is an important area in WBAN systems. The IEEE 802.15.6 standard is an international standard in WBANs for low power, short range and extremely reliable wireless communication within the surrounding area of the human body. This standard supports three physical layers (PHYs), namely, narrowband (NB) PHY, ultra-wideband (UWB) PHY and human-body communications (HBC) PHY. It is without a question that the Impulse Radio UWB (IR-UWB) signaling has a major advantage as regard the transmission power and energy consumption.


This thesis focuses on design of an IR-UWB transceiver for BANs that exhibits satisfactory performance while fulfilling the 15.6 specifications and maintaining its structural and implementation simplicity - particularly in sub-nanometer technology This research work emphasizes the design of a low-complexity IR-UWB transceiver system for BANs strictly fulfilling the IEEE 802.15.6-2012 specifications and without violating the FCC rules and regulations. This thesis attempts to devise an implementation architecture that enables the design of an energy-efficient and low-complexity 15.6 IR-UWB transceiver system for BANs.


The contributions of the Thesis may be grouped under two parts:

  • IEEE 802.15.6 compliant IR-UWB transmitter using SRRC signaling pulse at the carrier frequency of fc = 3.9936 GHz and a data rate of 0.4875 Mbps

  • IEEE 802.15.6 compliant IR-UWB non-coherent energy detection based receiver at fc= 3.9936 GHz with digital back-end