Invited Talks

  • "Bandwidth efficient hybrid ARQ schemes using Turbo-TCM", Motorola's Science Advisory Board Associates (SABA) meeting, San Marco Islands, FL, October 1999.
  • "Some reflections on the design of bandwidth efficient turbo codes", Motorola Labs, Schaumburg, IL, June 2001.
  • "Bandwidth efficient coding using turbo codes", Vodafone Chair Mobile Communications Systems, Technische Universitat Dresden, Dresden, January 2003.
  • "Bandwidth efficient coding using turbo codes", Lehrstuhl fur Informationsubertragung, Universitat Erlangen-Nurnberg, Erlangen, January 2003.
  • "Bandwidth efficient coding using turbo codes", Dipartimento di Automatica e Informatica, Politecnico di Torino, Torino, Italy, February 2003.
  • "Nonsystematic turbo codes", Department of Electronics Engineering, Cheng-Shiu University, Kaohsiang, Taiwan, July 2007.
  • "PAPR reduction for OFDM signals", National Conference on Wireless and Optical Communication (WOC-2007), Chandigarh, December 2007.
  • "Cognitive radio: A physical layer communication perspective", National Workshop on Signal Processing and its Application to Software Defined Radio, Kolkata, January 2008.
  • "Communication over Relay Channels", Tutorial talk in Fourteenth National Conference on Communications, Mumbai, February 2008.
  • "Smart House", Keynote talk at 40th World Telecommunication and Information Society Day, May 2008 at IIT Kanpur organized by IETE Kanpur Chapter.
  • "Turbo Code Design For Half-Duplex Relay Channels", Department of Electronic Engineering, Far East University of Science and Technology, Tainan, August 2008.
  • "Cognitive Radio", Department of Electronics & Communication Engineering, Thiagarajar College of Engineering, Madurai, April 2009.
  • "Cognitive Radio", Department of Electronics & Communication Engineering, PSNA College of Engineering and Technology, Dindigul, April 2009.
  • "Cognitive Radio", Microsoft Research Labs India, Bangalore, May 2009
  • "Turbo Codes and Its Application to Optical and Relay Channels", Dipartimento di Elettronica, Politechnico di Torino, Italy, June 2009.
  • "Spectrum sensing for cognitive radio", Defense Electronics Application Laboratory, Dehradun, October 2009.
  • "Turbo Principle in Communications", Defense Electronics Application Laboratory, Dehradun, October 2009.
  • "Cognitive Radio" organized by IEEE Kolkata Section at Jadavpur University, January 2010.
  • "Spectrum sensing for cognitive radio", Institute of Engineering & Management, Kolkata, January 2010.
  • "Malicious User Detection and Suppression for Cooperative Spectrum Sensing in Cognitive Radio Networks Using Outlier Detection Techniques", CORD 2012, Indian Institute of Technology Hyderabad, Hyderabad, February 2012
  • "An Introduction to 4G Wireless Standards", 44th World Telecommunications & Information Society Day, May 2012, IIT Kanpur
  • "Cognitive Radio(Poster Presentation)", 4th Indo-German Frontiers of Engineering Symposium, Merseburg, June 13-16, 2012
  • "Spectrum Sensing: How to Cooperate for Better Detection", TV White Spaces and Cognitive Radio Workshop at IIT Bombay. December 2012.
  • "An introduction to cognitive radio" at a short course on 3G & 4G Technologies at NIT Surat, Oct 2013.
  • "An introduction to 3GPP Long Term Evolution (LTE) Physical Layer" at a workshop on LTE in IMPACT 2013 at Aligarh Muslim University, Nov. 2013.
  • "Control Channels in Cognitive Radio", at a short course on Dynamic Spectrum Management at IIT Bombay, January 2014.
  • "Introduction to Spectrum Sensing" at a short course on Dynamic Spectrum Management at IIT Bombay, January 2014.
  • "Resource Allocation in Wireless Powered Cooperative Cognitive Radio Networks", University of Notre Dame, Indiana, December 2015.
  • "Secure Communication via a Wireless Energy Harvesting Untrusted Relay", Indian Institute of Engineering Science and Technology, Shibpur, 27th January 2016.
  • “Cognitive Radio: An Enabler for Smart Cities”, 29th GISFI Standardization Series Meeting and IEEE 5G Summit, SoA University, Bhubaneswar, August 17th-18th 2018.
  • “What is 5G?”, National Institute of Technology Silchar, 13th March 2018
  • “Cognitive Radio for Tactical Communications: Opportunities and Challenges”, Central Research Laboratory, Bharat Electronics Limited (CRL-BEL), Bangalore, June 14th 2018.
  • “Collusion Resistant Regret Minimization in Second-Price Auction”, IIT Bombay, 26th July 2018.
  • “A method to find the volume of a sphere in the Lee metric, and its applications”, Bombay Information Theory Seminar, I.I.T. Bombay, January 7th, 2020.
  • "On ISI reducing codes for molecular communication via diffusion channel", IIEST, Shibpur, July 28th, 2022.

Talks in Short Courses

  • Gave lecture on ``Coding for Wireless Communications,'' in AICTE Training And Learning (ATAL) Academy Online Elementary Faculty Development Program on "Modulation, Coding and Multiple Access Techniques for Wireless Communication and Storage Systems" at IIT Goa from 15th-19th Nov. 2021.
  • Gave lecture on ``An introduction to physical layer security in wireless communication systems,'' in a Webinar on ``Information Security: Approaches from Application to Physical Layers'' at IIEST, Shibpur, 11th-15th Jan. 2021.
  • Gave lectures on ``IoT Applications for smart agriculture and smart city'' in a webinar on ``Internet of Things: Architectures, Protocols, Applications, and Security Concerns,'' at IIEST, Shibpur, 14th -18th Dec. 2020.
  • Co-Organized short course on ``Theory and Simulation of Massive MIMO & mmWave 5G NR Cellular Networks”, at IIT Kanpur, 27th May-31st May 2019.
  • Co-Organized short course on ``A Hands-on-Introduction to Modern Wireless Systems: Theory & Simulation”, at IIT Kanpur, 3rd-6th Dec. 2018.
  • Co-Organized short course on “Optimization for Communications & Machine Learning”, at I.I.T. Kanpur, Mar. 28th-30th 2018.
  • Gave lectures on convolutional codes, turbo codes and LDPC codes in a workshop on “Coding and Cryptography: Fundamentals and Applications” at IIT (ISM) Dhanbad, December 13th-17th 2017.
  • Co-organized short course on "Technologies for 5G" at I.I.T. Kanpur, Jul. 25th-27th 2016.
  • Gave lectures in a short course on "Convex Optimization for Wireless Communications", at I.I.T. Kanpur, Nov. 16th-18th 2015.
  • Gave lectures in the short course on "Estimation Theory for Communications and Signal Processing", at I.I.T. Kanpur, Jan 21st-23rd 2015.
  • Gave lectures in the short course on "Detection Theory for Communications and Signal Processing", at I.I.T. Kanpur, Apr. 27th-29th 2015.
  • Gave lectures in the short course on "Convex Optimization for Wireless Communications", at I.I.T. Kanpur, Sept. 15th-17th Sept. 2014.
  • Co-Organizing short course on "Cognitive Radio: A New Paradign in Wireless", Oct. 20th-22nd 2013.
  • Co-Organized short course on "Wireless Sensor Networks: Theory and Challenges", July 22nd-24th 2013.
  • Co-organized short course on "MIMO/OFDM based Advanced 4G Cellular Networks", January 11th-13th 2013.
  • Co-Organized short course on "Wireless Sensor Networks: From Theory to Practice", May 24th-26th 2012.
  • Co-organized short course on "Cognitive Radio: Next Frontier in Wireless Communications" at I.I.T. Kanpur, Oct. 20th-22nd 2011.
  • Co-organized short course on "OFDM based 4G cellular standards: LTE and WiMAX", at I.I.T. Kanpur, May 09-11, 2011.
  • Co-organized short course on "Cognitive radio: The Next Frontier in Wireless Communications" at I.I.T. Kanpur, Nov 23rd-25th 2010.
  • Gave lectures on channel coding and LTE at a workshop on "Introduction to LTE" at C-DOT, Bangalore.
  • Co-organized short course on "OFDM based Next Generation Wireless Standards" at I.I.T. Kanpur, May 17th-19th 2010.
  • Talk on "Specifics of LTE-A Air Interface with emphasis on unique aspects: SC-FDMA and Multiple Antenna Techniques in 3GPP Long Term Evolution" in A Unified Perspective of 4G: IEEE 802.16m and LTE-Advanced Workshop at IIT Madras.
  • Gave lectures on OFDM and LTE at a workshop on "Wireless Circuits and Systems" jointly organized by I.I.T. Kanpur and USM Malaysia at Penang, Malaysia, December 2009.
  • Co-organized short course on Cellular Technologies: 3G and Beyond at I.I.T. Kanpur, 26th-28th December 2009 and delivered lectures on OFDM and LTE.
  • Six hours of lectures on digital transmission, error detection and correction in a short course on "Audio & Video: Processing, Transmission, Coding and Display, Nov.-Dec. 2007, I.I.T. Kanpur.
  • Three hours of lectures on communication and anti-collision techniques for RFID in a short course on "Principles and Practices in Radio Frequency Identification (RFID)", Nov. 2007, I.I.T. Kanpur.