Hi, I am a PhD student at the University of California, Irvine in the Department of Computer Science. At UCI, I'm a part of the Dutt Research Group advised by Distinguished Prof. Nikil Dutt. Previously, I worked as a Researcher (Consultant) at TCS Research in the Computing Systems Lab. Before that, I was a Software Engineer at Parallel Wireless, Inc., where I worked on 5G NR and 2G access stack development for 1.5 years.
I completed my undergraduate studies in the Department of Electronics and Communication Engineering at the Indian Institute of Information Technology Guwahati in May 2021. During my undergraduate studies, I have worked on approximate computing and its various applications.
In my undergraduate journey, I was advised by Dr. Dip Sankar Banerjee, Dr. Soumyajit Poddar, Dr. Neeraj Goel, and Prof. Muhammad Shafique.
My research interests include approximate computing, computer architecture, networked embedded systems, autonomous vehicles, and VLSI Design. I try investigating and working on interesting research problems in my free time. In case you want to know more about my research or want to collaborate with me, please feel free to send me an email.
Email / CV / Google Scholar / Github / LinkedIn / ORCID / ResearchGate / Instagram
News
- [July 2024] Paper on Approximate Multiple Signal Classification accepted at ESWEEK-CASES as a Late Breaking Result paper.
- [April 2024] I am awarded the ACM/IEEE DAC Young Fellowship for attending 61st DAC.
- [December 2023] Semiconductor Engineering's Library features our paper Ellora in their weekly technical paper roundup.
- [November 2023] Paper on design space exploration for generating low-power OFDM-based radar processors accepted at LASCAS 2024.
- [November 2023] I was interviewed about my journey, spanning from my undergraduate days through my corporate experience, to ultimately securing admission for a CS PhD program in the USA.
- [September 2023] Back to school. I am starting my PhD in Computer Science at UC Irvine! Wish me luck!
- [March 2023] Paper on design space exploration for Low-Power Viterbi decoding using approximations accepted at the ACM GLSVLSI 2023.
- [November 2022] I started working full-time at TCS Research as a Pre-doctoral Research Fellow.
- [December 2021] We presented our poster on Approximate Communication for 5G and beyond at IEEE HiPC SRS 2021.
- [November 2021] We presented our paper on efficient biomedical signal processing at IEEE EMBC 2021.
- [June 2021] I started working as a Software Engineer at Parallel Wireless, Inc.
- [May 2021] I graduated with a Bachelor of Technology in Electronics and Communication Engineering from the Indian Institute of Information Technology Guwahati with Department Rank 2 in the final year.
- [September 2020] We won the Best Paper Award (2nd Place) at the ACM GLSVLSI 2020!
Research
MUSIC-lite: Efficient MUSIC using Approximate Computing: An OFDM Radar Case Study
Rajat Bhattacharjya, Arnab Sarkar, Biswadip Maity, Nikil Dutt
To appear in the ACM/IEEE Embedded Systems Week (ESWEEK)- International Conference on Compilers, Architectures, and Synthesis for Embedded Systems (CASES), Raleigh, NC, USA, September 2024
Ellora: Exploring Low-Power OFDM-based Radar Processors using Approximate Computing
Rajat Bhattacharjya, Alish Kanani, A Anil Kumar, Manoj Nambiar, M Girish Chandra, Rekha Singhal
In the Proceedings of the 15th IEEE Latin American Symposium on Circuits and Systems (LASCAS), Punta Del Este, Uruguay, February 2024 [Featured on Semiconductor Engineering's Library]
Locate: Low-Power Viterbi Decoder Exploration using Approximate Adders
Rajat Bhattacharjya, Biswadip Maity, Nikil Dutt
In the Proceedings of the 33rd ACM Great Lakes Symposium on VLSI (GLSVLSI), Knoxville, TN, USA, June 2023
Approximating Communication Systems: Reality or Fantasy?
Ish Kool, Alish Kanani, Rajat Bhattacharjya
28th IEEE International Conference on High Performance Computing, Data, and Analytics (HiPC)- Student Research Symposium, Bangalore, India (Virtual Event), 2021
ApproxBioWear: Approximating Additions for Efficient Biomedical Wearable Computing at the Edge
Alish Kanani, Rajat Bhattacharjya, Dip Sankar Banerjee
43rd Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC), Guadalajara, Mexico (Virtual Event), 2021
ACLA: An Approximate Carry-Lookahead Adder with Intelligent Carry Judgement and Correction
Shobhit Belwal, Rajat Bhattacharjya, Kaustav Goswami, Dip Sankar Banerjee
22nd IEEE International Symposium on Quality Electronic Design (ISQED), Santa Clara, California, USA (Virtual Event), 2021 - (Code)
SEAMBA: A Semi-Approximate Multiplier using Block-Based Approach and Rounding
Arnab Sarkar, Rajat Bhattacharjya, Ashish Goswami, Soumyajit Poddar
The IEEE International Symposium on Devices, Circuits and Systems (ISDCS), Higashi-Hiroshima, Japan (Virtual Event), 2021
Disruptive Factors Influencing Women's Education during COVID-19
Rajat Bhattacharjya, Shivika Agrawal, L David Lal
International Conference on Women Empowerment in Science and Technology (ICWEST), Warangal, India (Virtual Event), 2021
An Approximate Carry Estimating Simultaneous Adder with Rectification
Rajat Bhattacharjya, Vishesh Mishra, Saurabh Singh, Kaustav Goswami, Dip Sankar Banerjee
In the Proceedings of the 30th ACM Great Lakes Symposium on VLSI (GLSVLSI), Beijing, China (Virtual Event), 2020 [Best Paper Award (2nd Place)]
ReARM: A Reconfigurable Approximate Rounding-Based Multiplier for Image Processing
Rajat Bhattacharjya, Alish Kanani, Neeraj Goel
In the Proceedings of the 24th IEEE International Symposium on VLSI Design and Test (VDAT), Bhubaneswar, India (Virtual Event), 2020
ACEP: An Accuracy-Configurable Carry Estimating Parallel Adder
Rajat Bhattacharjya, Vishesh Mishra, Saurabh Singh, Kaustav Goswami
26th IEEE International Conference on High Performance Computing, Data, and Analytics (HiPC)- Student Research Symposium, Hyderabad, India, 2019 [Best Poster Award]
Teaching
CS125
Next Generation Search Systems - Teaching Assistant (Winter 2024)
CS250P
Computer Systems Architecture - Teaching Assistant (Fall 2023)
University of California, Irvine
CS101
Computer Programming - Teaching Assistant (Monsoon semester 2018)
Indian Institute of Information Technology Guwahati
Miscellaneous
- Apart from science and technology, I appreciate good art and music. I take particular interest in avant-garde works.
- I am also an avid quizzer, debater and singer and have won accolades nationally.
- I love travelling to places and absorbing various cultures.
- The places Haflong and Guwahati are dear to me. I spent my entire childhood and teenage life in these two places.
- Here is a list of my collaborators and mentors.
Last updated: Jul. 2024.
Inspired by his template.