Chayan Sarkar

Scientist, TCS Research

sarkar.chayan@tcs.com

Chayan Sarkar




I am a Scientist at TCS Research and currently working at the TCS Innovation Lab, Kolkata. Before that I worked briefly as a researcher at SICS Swedish ICT in Sweden. I got my bachelor’s and master’s degree from Jadavpur University in 2009 and IIT Bombay in 2011, respectively. I completed my PhD studies at the Delft University of Technology in Netherlands in 2016.

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Master Thesis Topics

  • Ultra low energy communication protocol for IoT applications.
  • Real-time communication protocol for IoT applications.

Research Interests

Virtualization of IoT

Virtualizating the IoT ecosystem has three major benefits – (i) tackling heterogeneity through a unified view of the device, (ii) reduce infrastructure cost by reusing and sharing devices, and (iii) achieve higher operational optimization of the deployed devices.

Sensor data estimation

A popular technique to reduce overall data traffic in a WSN is to keep only a subset of nodes active at any point of time. Data for the sleeping nodes can be reproduced using the data from the active nodes. This reproduction utilizes the inherent spatio-temporal correlation amongst the nodes.

Data collection protocol

Although correlation based sensor data estimation can reduce the overall data traffic significantly, without a complementary routing mechanism, the energy efficiency can be diminished significantly. Also special, routing mechanism is required for energy harvested network and real-time network.

Comfort preference leanring

Thermal and visual comfort is not a single temperature value rather a range of temperature values. People cannot easily correlate their comfort levels with temperature or light intensity values. Precise knowlwdge about comfort can lead to higher level of energy savings.

Secure and Private IoT Communication

As the vision of IoT advocates for an ecosystem where any device can be accessed any time from anywhere, security and privacy need to be maintained while communicating with any IoT device.

Indoor localization

Existing infrastructure-free indoor positioning systems have a strong assumption, i.e., an user always carry a smartphone. This is true for public scenarios, such as shopping malls or airports, but less likely for home and office environments. Thus a localization mechanism need to tackle it.

Publications

Sharing is good, and with digital technology, sharing is easy.
- Richard Stallman

    2017
  1. Rachel Cardell-Oliver and Chayan Sarkar, BuildSense: Long-term, fine-grained building monitoring with minimal sensor infrastructure, The 4th ACM International Conference on Systems for Energy-Efficient Built Environments (BuildSys), Delft, Netherlands, 2017.

  2. Luis Henrik John, Chayan Sarkar, and R. Venkatesha Prasad, Where is PELE? Pervasive localization using wearable and handheld, First workshop on Advances in IoT Architecture and Systems (AIoTAS 2017), Toronto, Canada, ACM, 2017.

  3. 2016
  4. Chayan Sarkar, Virtualizing The Internet of Things, PhD Thesis, Delft University of Technology, 2016.  [abstract]  [pdf]
  5. Rachel Cardell-Oliver and Chayan Sarkar, Robust sensor data collection over a long period using virtual sensing, First workshop on Time Series Analytics and Applications (TSAA 2016), Hobart, Australia, ACM, 2016.
  6. Chayan Sarkar, R. Venkatesha Prasad, Raj Thilak Rajan, and Koen Langendoen, Sleeping Beauty: Efficient Communication for Node Sceduling, The 13th IEEE International Conference on Mobile Ad hoc and Sensor Systems (MASS), 2016.
  7. Chayan Sarkar, LWB and FS-LWB implementation for Sky platform using Contiki, arXiv preprint, 2016.    [Technical report]
  8. Chayan Sarkar, Vijay S. Rao, R. Venkatesha Prasad, Sankar Narayan Das, Sudip Misra, and Athanasios Vasilakos, VSF: An Energy-Efficient Sensing Framework using Virtual Sensors, Sensors Journal, IEEE, 2016.
  9. Vijay S. Rao, Madhusudan Koppala, R. Venkatesha Prasad, T. V. Prabhakar, Chayan Sarkar, and Ignas Neimegeers, Murphy loves CI: Unfolding and Improving Constructive Interference in WSN, IEEE International Conference on Computer Communications (INFOCOM), 2016.
  10. Chayan Sarkar, Akshay Uttama Nambi S.N., and R. Venkatesha Prasad, iLTC: Achieving Individual Comfort in Shared Spaces, International Conference on Embedded Wireless Systems and Networks (EWSN), ACM, 2016.
  11. Alexander de Moes, Jens Joachim Pedersen, Chayan Sarkar and R. Venkatesha Prasad, Fine-tuned Lighting Control Leveraging Smartphone-based Occupancy Detection, International Conference on Embedded Wireless Systems and Networks (EWSN), ACM, 2016. [Demo]

  12. 2015
  13. Chayan Sarkar, Akshay Uttama Nambi S.N., and R. Venkatesha Prasad, Learning Individual Preferences for Energy-Efficiency and Comfortable Living, Proceedings of the 2nd ACM International Conference on Embedded Systems for Energy-Efficient Built Environments, ACM, 2015. [Poster]
  14. Jan Jaap Treurniet, Chayan Sarkar, R. Venkatesha Prasad, and Willem de Boer, Energy Consumption and Latency in BLE Devices under Mutual Interference: An Experimental Study, 3rd International Conference on Future Internet of Things and Cloud (FiCloud), IEEE, 2015.
  15. Chayan Sarkar, Akshay Uttama Nambi S. N., R. Venkatesha Prasad, Abdur Rahim, Ricardo Neisse, and Gianmarco Baldini, DIAT: A Scalable Distributed Architecture for IoT, Internet of Things Journal (IoTJ), IEEE, 2015.

  16. 2014
  17. Chayan Sarkar, Vijay S. Rao, R. Venkatesha Prasad, and Koen Langendoen, Sleep-Route: Assured Sensing with Aggressively Sleeping Nodes, 11th International Conference on Mobile Ad Hoc and Sensor Systems (MASS), IEEE, 2014.
  18. Chayan Sarkar, Vijay S. Rao, and Prasad, R Venkatesha, No-sense: Sense with dormant sensors, Twentieth National Conference on Communications (NCC), IEEE, 2014.
  19. Chayan Sarkar, Akshay Uttama Nambi S. N., R. Venkatesha Prasad, and Abdur Rahim, A Scalable Distributed Architecture Towards Unifying IoT Applications, IEEE World Forum on Internet of Things (WF-IoT), 2014.
  20. Akshay Uttama Nambi S. N., Chayan Sarkar, R. Venkatesha Prasad, and Abdur Rahim, A unified semantic knowledge base for IoT, IEEE World Forum on Internet of Things (WF-IoT), 2014.

  21. 2012
  22. Chayan Sarkar, Vijay S. Rao, R. Venkatesha Prasad, Abdur Rahim, and Ignas Niemegeers, A distributed model for approximate service provisioning in internet of things, Proceedings of the 2012 international workshop on Self-aware internet of things, ACM, 2012.
  23. R. Venkatesha Prasad, Chayan Sarkar, Vijay S. Rao, A Rahim Biswas, and Ignas Niemegeers, Opportunistic service provisioning in the future internet using cognitive service approximation, 28th WWRF Meeting, 2012.

  24. 2011
  25. Chayan Sarkar, Stephan Rein, and Adam Wolisz, Scalable video streaming with utilization of multiple radio interfaces: A customized method for signaling and bandwidth estimation, 8th International Symposium on Wireless Communication Systems (ISWCS), IEEE, 2011.
  26. Chayan Sarkar, Efficient Support of Video Streaming to Mobile Devices with Utilization of Multiple Radio Interfaces and Scalable Video Coding, 2011. [Master thesis]

  27. 2010
  28. Chayan Sarkar, Seminar Report on Data Center Network Design, 2010. [Technical report]

Code & Demo

Most good programmers do programming not because they expect to get paid or get adulation by the public,
but because it is fun to program. - Linus Torvalds

  1. The Sleeping Beauty code is available on github.

  2. The LWB and FS-LWB code for sky nodes is available on github.

  3. The VSF code is available on github.

  4. The iLTC demo is shown below.

Please do not hesitate to contact me if you want to discuss any of my work. I am always open for collaboration about any interesting topic.

My Office Address

TCS Innovation Lab
Ecospace 1B, Newtown, Rajarhat
Kolkata - 700160
India
email: chayan@ieee.org

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