Samarjit Chakraborty

I am with the Computer Science Department of UNC Chapel Hill and a member of the Real-Time Systems Group. My research interests span across real-time, embedded, and cyber-physical systems design. A brief bio and contact information may be found here.

• Jul 2023: Research Panel at DAC 2023: "Achieving Verifiable Autonomy: Is Design Automation the Golden Key?"
  
• Mar 2023: Special issue on Automotive CPS Safety & Security in the ACM Transactions on Cyber-Physical Systems is now available.
  
• Feb 2023: Special session on "Autonomy-driven Emerging Directions in Software-defined Vehicles" (with General Motors and Siemens) at DATE 2023 (as part of the Initiative on Autonomous Systems Design)
  
• Dec 2022: Special issue on Embedded Systems for Computer Vision in the Leibniz Transactions on Embedded Systems is now available.
  
• Aug 2022: Statistical Hypothesis Testing of Controller Implementations under Timing Uncertainties nominated for Best Paper Award at RTCSA 2022
• Mar 2022: BMC+Fuzz: Efficient and Effective Test Generation nominated for Best Paper Award at DATE 2022
• Feb 2022: Enrico Fraccaroli joins us as a Postdoctoral Researcher from the University of Verona
• Jan 2022: Smartphone-based Electronic Contact Tracing for COVID-19 featured as the Communications of the ACM cover article
  
• Oct 2021: Our Special Issue on Cross-Layer Design of Cyber-Physical Systems in IEEE Design & Test is now available. See introduction to the special issue [pdf]
  
• Oct 2021: TECS 2021 Best Paper Award for: Energy Modeling for the Bluetooth Low Energy Protocol. Philipp H. Kindt, Daniel Yunge, Robert Diemer, and Samarjit Chakraborty. ACM Transactions on Embedded Computing Systems, Volume 19, Issue 2, March 2020
  
• Aug 2021: Shengjie Xu and Sharmin Aktar start their PhD
• Jun 2021: Paper on Smartphone-based Electronic Contact Tracing for COVID-19 accepted to Communications of the ACM
  
• May 2021: Submissions are being invited to a Special Issue on Automotive CPS Safety & Security at the ACM Transactions on Cyber-Physical Systems (submission deadline: July 01, 2021, please submit your work)
  
• Jan 2021: Nominations are being invited for the 2021 ACM SIGBED Early Career Researcher Award (deadline: March 15, 2021, new procedures for this year). Consider nominating your former PhD students, postdocs, or junior colleagues!
• Jan 2021: New NSF project on automotive CPS started from Jan 01, 2021
• Jan 2021: Session on Predictable Perception in Autonomous Systems at the Special Initiative on Autonomous Systems Design on Fri, Feb 05, at DATE 2021 (Registration is FREE, please attend!)
  
• Oct 2020: New paper on neighbor discovery in IEEE TMC
  
• Jun 2020: Submissions are being invited to a Special Issue on Embedded Systems for Computer Vision at the Leibniz Transactions on Embedded Systems
  (deadline: Dec 15, 2020, contact guest editors if extensions are necesaary)
  
• May 2020: How Reliable is Smartphone-based Electronic Contact Tracing for COVID-19?
  
• Mar 2020: CPS-oriented Modeling and and Control of Traffic Signals Using Adaptive Back Pressure nominated for Best Paper Award at DATE 2020
  
• Jan 2020: Our paper Energy Modeling for the Bluetooth Low Energy Protocol accepted to the ACM Trans. on Embedded Computing Systems (TECS)
  
• Jan 2020: Our Special Issue on Transportation Cyber-Physical Systems in ACM Trans. on Cyber-Physical Systems (TCPS)
  
• Nov 2019: Nominations are being invited for the 2020 ACM SIGBED Early Career Researcher Award (deadline: January 15, 2020). Consider nominating your former PhD students, postdocs, or junior colleagues!
  

Teaching

        Fall 2023: Programming Intelligent Physical Systems

        Fall 2023: COMP 915: Technical Communication in Computer Science (with Jack Snoeyink)
 
        Spring 2022: COMP 915: Technical Communication in Computer Science (with Jim Anderson)

        Fall 2021: Embedded Systems

Students  

• Clara Hobbs (co-supervised with Jim Anderson)
• Shengjie Xu
• Sharmin Aktar
• Enrico Fraccaroli (postdoc)
  

Projects

• Automotive Cyber-Physical Systems (funded by NSF) (ongoing)
  
• Timing Analysis for Service-Oriented Communication Architectures (General Motors research contract) (ongoing)
  

Selected recent papers (posted here for the purpose of timely dissemination, please respect the ACM and IEEE copyright policies; other publishers might have similar ones)

• Safety-Aware Implementation of Control Tasks via Scheduling with Period Boosting and Compressing.
  Shengjie Xu, Bineet Ghosh, Clara Hobbs, P.S. Thiagarajan, Prachi Joshi, and Samarjit Chakraborty. 29th IEEE International Conference on Embedded and Real-Time Computing Systems and Applications (RTCSA), 2023
  
  
• Autonomy-driven Emerging Directions in Software-defined Vehicles.
  Unmesh Bordoloi, Samarjit Chakraborty, Markus Jochim, Prachi Joshi, Arvind Raghuraman, and S. Ramesh. Design, Automation and Test in Europe (DATE), 2023
  
  
• Timing Predictability for SOME/IP-based Service-oriented Automotive In-vehicle Networks.
  Enrico Fraccaroli, Prachi Joshi, Shengjie Xu, Khaja Shazzad, Markus Jochim, and Samarjit Chakraborty. Design, Automation and Test in Europe (DATE), 2023
  
  
• Safety-aware Flexible Schedule Synthesis for Cyber-Physical Systems using Weakly-Hard Constraints.
  Shengjie Xu, Bineet Ghosh, Clara Hobbs, P.S. Thiagarajan, and Samarjit Chakraborty. 28th Asia and South Pacific Design Automation Conference (ASP-DAC), 2023
  
  
• Safety Analysis of Embedded Controllers under Implementation Platform Timing Uncertainties.
  Clara Hobbs, Bineet Ghosh, Shengjie Xu, Parasara Sridhar Duggirala, and Samarjit Chakraborty. 22nd International Conference on Embedded Software (EMSOFT), 2022 (in IEEE Transactions on Computer-Aided Design of Integrated Circuits and Systems)
  
  
• How Reliable is Smartphone-based Electronic Contact Tracing for COVID-19?
  Philipp H. Kindt, Trinad Chakraborty, and Samarjit Chakraborty. Communications of the ACM (CACM), 2022
  
  
• Optimizing BLE-Like Neighbor Discovery.
  Philipp Kindt, Swaminathan Narayanaswamy, Marco Saur, and Samarjit Chakraborty. IEEE Transactions on Mobile Computing (TMC), 2022
  
  
• Tool Integration for Automated Synthesis of Distributed Embedded Controllers.
  Debayan Roy, Licong Zhang, Wanli Chang, Dip Goswami, Birgit Vogel-Heuser, and Samarjit Chakraborty. ACM Transactions on Cyber-Physical Systems (TCPS), 2022
  
  
• Micro- and Macroscopic Road Traffic Analysis using Drone Image Data.
  Friedrich Kruber, Eduardo Sánchez Morales, Robin Egolf, Jonas Wurst, Samarjit Chakraborty, and Michael Botsch. Leibniz Transactions on Embedded Systems (LITES), 2022
  
  
• BMC+Fuzz: Efficient and Effective Test Generation.
  Ravindra Metta, Raveendra Kumar Medicherla, and Samarjit Chakraborty. Design, Automation and Test in Europe (DATE), 2022 (nominated for Best Paper Award)
  
  
• Process Dynamics-Aware Flexible Manufacturing for Industry 4.0.
  Michael Balszun, Clara Hobbs, Enrico Fraccaroli, Debayan Roy, Franco Fummi, and Samarjit Chakraborty. 18th IEEE International Conference on Automation Science and Engineering (CASE), 2022
  
  
• CAN Bus Intrusion Detection based on Auxiliary Classifier GAN and Out-of-Distribution Detection.
  Qingling Zhao, Mingqiang Chen, Zonghua Gu, Siyu Luan, Haibo Zeng, and Samarjit Chakrabory. ACM Transactions on Embedded Computing Systems (TECS), 2022
  
  
• Statistical Hypothesis Testing of Controller Implementations under Timing Uncertainties.
  Bineet Ghosh, Clara Hobbs, Shengjie Xu, Sridhar Duggirala, James H. Anderson, P.S. Thiagarajan, and Samarjit Chakraborty. 28th IEEE International Conference on Embedded and Real-Time Computing Systems and Applications (RTCSA), 2022
  
  
• Checking Scheduling-induced Violations of Control Safety Properties.
  Anand Yeolekar, Ravindra Metta, Clara Hobbs, and Samarjit Chakraborty. 20th International Symposium on Automated Technology for Verification and Analysis (ATVA), 2022
  
  
• Exploiting Process Dynamics in Multi-Stage Schedule Optimization for Flexible Manufacturing.
  Michael Balszun, Clara Hobbs, Debayan Roy, Enrico Fraccaroli, and Samarjit Chakraborty. 27th IEEE International Conference on Emerging Technologies and Factory Automation (ETFA), 2022
  
  
• Mass-deployable Smartphone-based Objective Hearing Screening with Otoacoustic Emissions.
  Nils Heitmann, Thomas Rosner, and Samarjit Chakraborty. 23rd ACM International Conference on Multimodal Interaction (ICMI), 2021
  
  
• Cooling by Core-idling: Thermal-aware Thread Scheduling for Mobile Multicore Processors.
  Srijeeta Maity, Anirban Ghose, Soumyajit Dey, Sangyoung Park, and Samarjit Chakrabarty. 42nd IEEE Real-Time Systems Symposium (RTSS), Work-in-Progress, 2021
  
  
• Heterogeneous Communication Virtualisation for Distributed Embedded Applications.
  Thinh Pham, Shanker Shreejith, Sebastian Steinhorst, Suhaib A. Fahmy, and Samarjit Chakraborty. Euromicro Conference on Digital System Design (DSD), 2021
  
  
• Insert & Save: Energy Optimization in IP Core Integration for FPGA-based Real-time Systems.
  Martin Geier, Marian Brändle, and Samarjit Chakraborty. 27th IEEE Real-Time and Embedded Technology and Applications Symposium (RTAS), 2021
  
  
• Timing Debugging for Cyber-Physical Systems.
  Debayan Roy, Clara Hobbs, James H. Anderson, Marco Caccamo, and Samarjit Chakraborty. Design, Automation and Test in Europe (DATE), 2021
  
  
• Perception Computing-Aware Controller Synthesis for Autonomous Systems.
  Clara Hobbs, Debayan Roy, Parasara Sridhar Duggirala, F. Donelson Smith, Soheil Samii, James H. Anderson, and Samarjit Chakraborty. Design, Automation and Test in Europe (DATE), 2021
  
  
• Timing-Predictable Vision Processing for Autonomous Systems.
  Tanya Amert, Michael Balszun, Martin Geier, F. Donelson Smith, James H. Anderson, and Samarjit Chakraborty. Design, Automation and Test in Europe (DATE), 2021
  
  
• Bounding Perception Neural Network Uncertainty for Safe Control of Autonomous Systems.
  Zhilu Wang, Chao Huang, Yixuan Wang, Clara Hobbs, Samarjit Chakraborty, and Qi Zhu. Design, Automation and Test in Europe (DATE), 2021
  
  
• Proactive Feedback for Networked CPS.
  Sumana Ghosh, Arnab Mondal, Debayan Roy, Philipp H. Kindt, Soumyajit Dey, and Samarjit Chakraborty. 36th ACM/SIGAPP Symposium On Applied Computing (SAC), CPS Track, 2021
  
  
• Exploring Planning and Operations Design Space for EV Charging Stations.
  Sangyoung Park, Alma Pröbstl, Wanli Chang, Anuradha Annaswamy, and Samarjit Chakraborty. 36th ACM/SIGAPP Symposium On Applied Computing (SAC), CPS Track, 2021
  
  
• UBAR: User and Battery Aware Resource Management for Smartphones.
  Elham Shamsa, Alma Pröbstl, Nima Taherinejad, Anil Kanduri, Samarjit Chakraborty, Amir M. Rahmani, Pasi Liljeberg. ACM Transactions on Embedded Computer Systems (TECS), 2021
  
  
• GoodSpread: Criticality-Aware Static Scheduling of CPS with Multi-QoS Resources.
  Debayan Roy, Sumana Ghosh, Qi Zhu, Marco Caccamo, and Samarjit Chakraborty. 41st IEEE Real-Time Systems Symposium (RTSS), 2020
  
  
• A Real-Time CAN-CAN Gateway with Tight Latency Analysis and Targeted Priority Assignment.
  Guoqi Xie, Haijie Gong, Yunbo Han, Samarjit Chakraborty, and Wanli Chang. 41st IEEE Real-Time Systems Symposium (RTSS), 2020
  
  
• Design-Time Optimization of Reconfigurable PV Architectures for Irregular Surfaces.
  Sangyoung Park, Swaminathan Swaminathan, and Samarjit Chakraborty. 38th IEEE International Conference on Computer Design (ICCD), 2020
  
  
• Designing a Single Speaker-based Ultra Low-Cost Otoacoustic Emission Hearing Screening Probe.
  Nils Heitmann, Thomas Rosner, and Samarjit Chakraborty. IEEE Global Humanitarian Technology Conference (GHTC), 2020


• CPS-oriented Modeling and Control of Traffic Signals Using Adaptive Back Pressure.
  Wanli Chang, Debayan Roy, Shuai Zhao, Anuradha Annaswamy, and Samarjit Chakraborty. Design, Automation and Test in Europe (DATE), 2020 (nominated for Best Paper Award)
  
  
• The Time-Triggered Wireless Architecture.
  Romain Jacob, Licong Zhang, Marco Zimmerling, Jan Beutel, Samarjit Chakraborty, and Lothar Thiele. 32nd Euromicro Conference on Real-Time Systems (ECRTS), 2020
  
  
• Configuring Loosely Time-triggered Wireless Control Software.
  Philipp H. Kindt, Sumana Ghosh, and Samarjit Chakraborty. 23rd International Workshop on Software and Compilers for Embedded Systems (SCOPES), 2020
  
  
• Towards Building Better Mobile Web Browsers for Ad Blocking: The Energy Perspective (WiP Paper).
  Nadja Heitmann, Benedikt Pirker, Sangyoung Park, and Samarjit Chakraborty. 21st ACM SIGPLAN/SIGBED International Conference on Languages, Compilers, and Tools for Embedded Systems (LCTES), 2020
  
  
• Predictable Vision for Autonomous Systems.
  Michael Balszun, Martin Geier, and Samarjit Chakraborty. 23rd IEEE International Symposium on Real-Time Distributed Computing (ISORC), 2020
  
  
• Debugging FPGA-accelerated Real-time Systems.
  Martin Geier, Marian Brändle, Dominik Faller, and Samarjit Chakraborty. IEEE Real-Time and Embedded Technology and Applications Symposium (RTAS), 2020
  
  
• Vehicle Position Estimation with Aerial Imagery from Unmanned Aerial Vehicles.
  Friedrich Kruber, Eduardo Sánchez Morales, Samarjit Chakraborty, and Michael Botsch. 31st IEEE Intelligent Vehicles Symposium (IV), 2020
  
  
• Intelligent Chargers will Make Mobile Devices Live Longer.
  Alma Pröbstl, Bashima Islam, Shahriar Nirjon, Naehyuck Chang and Samarjit Chakraborty. IEEE Design & Test, 2020
  
  
• Control Performance Optimization for Application Integration on Automotive Architectures.
  Anna Minaeva, Debayan Roy, Benny Akesson,  Zdenek Hanzálek, and Samarjit Chakraborty. IEEE Transactions on Computers, 2020
  
  
• BrezeFlow: Unified Debugger for Android CPU Power Governors and Schedulers on Edge Devices.
  Alexander Hoffman, Anuj Pathania, Philipp H. Kindt, Samarjit Chakraborty, and Tulika Mitra. 57th Annual Design Automation Conference (DAC), 2020
  
  
• Can You Hear Me? Towards an Ultra Low-Cost Hearing Screening Device.
  Nils Heitmann, Philipp H. Kindt, and Samarjit Chakraborty. 57th Annual Design Automation Conference (DAC), 2020
  
  
• Energy Modeling for the Bluetooth Low Energy Protocol.
  Philipp H. Kindt, Daniel Yunge, Robert Diemer, and Samarjit Chakraborty. ACM Transactions on Embedded Computing Systems (TECS) 19(2):13:1 - 13:32, 2020 (TECS 2021 Best Paper Award)
  
  
• Programmable Open Architecture Testbed for CPS Education. 
  Sumana Ghosh, Arnab Mondal,  Philipp H. Kindt, Prateek Sharma, Yash Agarwal, Soumyajit Dey, Alok Kanti Deb, and Samarjit Chakraborty. IEEE Design & Test, 2020
  
  
• In-Vehicle Object-Level 3D Reconstruction of Traffic Scenes. 
  Qing Rao and Samarjit Chakraborty. IEEE Transactions on Intelligent Transportation Systems, 2020