Ayush Kumar Dwivedi

Signal Processing and Communications Research Center (SPCRC), IIIT Hyderabad, INDIA · ayush.dwivedi@research.iiit.ac.in

I am a research scholar at the International Institute of Information Technology (IIIT) Hyderabad, India. Currently, I am exploring the use of low-Earth-orbit satellites for connecting internet-of-things (IoT) networks with ubiquitous coverage. The work focuses on the physical layer aspects of satellite-based IoT networks, with a particular emphasis on topology design and performance analysis. I am also a junior research fellow at the Centre of Excellence in IoT at IIITH, where I participate in smart cities-related deployments and research activities. The aim of these activities is to set up IoT networks for monitoring air pollution and water flow in Indian urban scenarios.

Research Interests: Satellite-based IoT networks, LEO satellites, IoT-enabled smart-cities, 6G and beyond


Experience

Junior Research Fellow

Signal Processing and Communications Research Centre (SPCRC), IIIT Hyderabad

Working on a Dept. of Science & Technology (DST), Govt. of India funded project titled 'IoT enabled smart cities: pollution, health and governance' under the guidance of principle investigator, Dr. Sachin Chaudhari.

Apr 2021 - Present

Research Scholar (Ph.D.)

Signal Processing and Communications Research Centre (SPCRC), IIIT Hyderabad

Working with Dr. Sachin Chaudhari towards Ph.D. thesis titled Satellite communications for the Internet of Things: Topology design and performance analysis at (SPCRC), (IIITH), India.

Jul 2018 - Present

Teaching Assistant

Communication Theory, Communication and Controls in IoT

Teaching assistant with Prof. Sachin Chaudhari at IIITH for courses like Communication Theory (UG Core) and Communication and Controls in IoT (ECE elective). The roles and responsibilities included mentoring project teams, planning and grading quizzes, and conducting tutorial sessions

Dec 2019 - Dec 2021

Intern

Antenna Products and Satcom Division, ECIL Hyderabad

Studied the design of various antennas used for satellite communication as a graduate intern at Antenna Products and Satcom Division (AP&SD) of Electronics Corporation of India Limited (ECIL), Hyderabad, India. ECIL is a Govt. of India (Department of Atomic Energy) enterprise.

Dec 2015 - Jan 2016

Research

NB-IoT via LEO satellites: Design and analysis of traffic-aware solutions

In collaboration with Dr. Houcine Chougrani, SnT, University of Luxembourg and Dr. Neeraj Varshney, NIST, USA

Traffic-aware transmission and scheduling schemes are being designed using a real dataset from a smart-city testbed for an LEO satellite-based NB-IoT network. The work focuses on enhancing the network’s capacity and energy efficiency by using change detection and machine learning-based scheduling schemes in time-constrained visibility passes of LEO satellites.

Performance analysis of direct-access LEO satellites-based IoT networks

In collaboration with Prof. Pramod K. Varshney, Syracuse University and Dr. Neeraj Varshney, NIST, USA

The work focuses on the physical (PHY) layer aspects of LEO satellite-based IoT networks, investigating the potential use of a star-of-star topology. The satellite constellation and the IoT deployment are modelled using stochastic geometry, and an end-to-end performance analysis is carried out in terms of outage probability for various decoding algorithms.

IoT Enabled Smart Cities: Pollution, Health and Governance

A Department of Science and Technology (DST), Govt. of India funded project

Operationalizing two research projects on air pollution monitoring (AirIoT) and water flow monitoring (WaterIoT) with an aim to develop and deploy an IoT network for monitoring air pollution and water flow in Indian metropolitan cities. It also includes developing a web-based spatial data platform for dynamic geo-visualization of the data to provide citizen advisory and governance inputs.


Publications

8. Performance Analysis of LEO Satellite-Based IoT Networks in the Presence of Interference

IEEE Internet of Things Journal

Authors: Ayush Kumar Dwivedi, Sachin Chaudhari, Neeraj Varshney and Pramod K. Varshney
Year: 2023

7. Development of End-to-End Low-Cost IoT System for Densely Deployed PM Monitoring Network: An Indian Case Study

Submitted to IEEE Access

Authors: Ayu Parmar, Spanddhana Sara, Ayush Kumar Dwivedi, et.al.,
Year: 2023

6. Performance Analysis of Selective Decode-and-Forward Relaying for Satellite-IoT

IEEE Globecom 2022

Authors: Nikhil Lamba, Ayush Kumar Dwivedi and Sachin Chaudhari
Year: 2022

5. Reference architecture and use cases for LEO satellite-based IoT networks

IEEE Future Networks World Forum (FNWF), IEEE International Network Generations Roadmap (Satellite Report)

Authors: Ayush Kumar Dwivedi, Sachin Chaudhari and Neeraj Varshney
Year: 2022, 2023

Report: 2022, 2023 (Soon)

4. Spatial factor analysis of mobile IoT data: A case study on PM across India

IEEE International Geoscience and Remote Sensing Symposium (IGARSS 2022)

Authors: Souradeep Deb, Ayush Kumar Dwivedi, Sachin Chaudhari, K.S. Rajan
Year: 2022

Paper (Soon)

3. Making Analog Water Meter Smart using ML and IoT-based Low-Cost Retrofitting

IEEE International Conference on Future Internet of Things and Cloud (FiCloud 2021)

Authors: Ayush Kumar Lall, Ansh Khandelwal, Rishikesh Bose, Nilesh Bawankar, Nitin Nilesh, Ayush Kumar Dwivedi, Sachin Chaudhari
Year: 2021

2. Performance Analysis of Novel Direct Access Schemes for LEO Satellites Based IoT Network

IEEE International Symposium on Personal, Indoor and Mobile Radio Communications (IEEE PIMRC 2020)

Authors: Ayush Kumar Dwivedi, Sai Praneeth Chokkarapu, Sachin Chaudhari, Neeraj Varshney
Year: 2020

1. Improving Spatio-Temporal Understanding of Particulate Matter using Low-Cost IoT Sensors

IEEE International Symposium on Personal, Indoor and Mobile Radio Communications (IEEE PIMRC 2020)

Authors: C. Rajashekar Reddy, T. Mukku, A. Dwivedi, A. Rout, S. Chaudhari, K. Vemuri, K. S. Rajan, A. M. Hussain
Year: 2020



Interests

My area of interest for research is next generation wireless communication. It research is concentrated on the use-cases of satellites in next-generation wireless communication with a specific focus on IoT. The scope of my research is mainly related to LEO satellite-based eMTC/IoT networks. The aim is to develop an understanding and potential solutions to the various research challenges on the front of topology, performance, resource allocation, and access schemes.

Apart from being a researcher, I enjoy most of my time in literature, poetry, public speaking and gardening. I like reading books. I am greatly influenced by Ramcharitmanas, a masterpiece by Goswami Tulsidas. I am an award winnig public speaker at multiple stages. Maintaining my own grown plants is one of my favoutite pastime.


Education

International Institute of Information Technology Hyderabad

Doctor of Philosophy (Ph.D.)
Signal Processing and Communication
July 2018 - Present

Hyderabad Institute of Technology and Management

Bachelor of Technology (B.Tech.)
Electronics and Communications Engineering (E.C.E)
July 2013 - June 2017


Contact

  • Email
ayush.dwivedi@research.iiit.ac.in
  • Workspace
Vindhya A3-204
Signal Processing and Communication Research Centre (SPCRC)
IIIT-H Campus, Gachibowli
Hyderabad, India