Comet Home

Workshop series on Advanced Communication Systems

Intelligent Reflecting Surfaces: Fundamentals and Applications


May 21, 2022


Online (Zoom meeting)



Session 1 by Dr. Rajarshi Mahapatra (10:00 to 11:30)

  • Introduction to 5G & Beyond
  • IRS channel modeling


Session 2 by Dr. Priyanka Das (11:45 to 13:15)

  • Applications of IRS in wireless communications
    • Coverage extension
    • Physical layer security
    • Cognitive radio
    • UAV


Session 3 by Dr. Rajarshi Mahapatra (14:00 to 15:00)

  • Comparison with existing technologies
  • Academic and industry initiatives


Session 4 by Dr. Priyanka Das (15:15 to 16:15)

  • Major Challenges
    • Joint active and passive beamforming
    • Channel estimation
    • IRS deployment
  • Future research directions


Dr Rajarshi_Photo

Dr. Rajarshi Mahapatra

IIIT Naya Raipur

Dr. Rajarshi Mahapat rareceived the Ph.D. degree in Electronics and Electrical Communication Engineering from the Indian Institute of Technology Kharagpur, Kharagpur, India, and was a postdoctoral fellow at CEA-LETI, Grenoble, France. In his postdoctoral research, he was engaged in FP7 Call4 BeFEMTO and Greentouch project. Presently, he is an Associate Professor with the Department of Electronics and Communication Engineering, Dr. SPM IIIT Naya Raipur. He is also serving as Dean (Academics) of IIITNR. Earlier, he had worked for Collins Aerospace, Hyderabad, on software-defined radio and electronic warfare.


Dr. Rajarshi Mahapatra has worked extensively in the domain of physical layer design and analysis of a wireless communication system. He worked in the field of cognitive radio, 5G & 6G communication, heterogeneous wireless communication, molecular communication and energy-efficient communication. His team designed and developed software-defined radio and direction-finding system for EW application in Collins Aerospace. He has about 18 years of teaching, research, and industry experience. He has published several research papers in various refereed Journals and IEEE Journals. He is a regular reviewer of premier IEEE Transactions and other peer-reviewed Journals and IEEE conferences. He has been organizing many workshops on 5G in recent years. He has also developed several high-valued research labs including the 5G test-bed. He has successfully completed and undertaken high-value sponsored projects in the field of communication systems. His current research interests include cognitive radio, dynamic spectrum access, energy consumption in wireless networks, and optical access networks. He has awarded with National scholarship, MHRD scholarship for research and EU-FP7 fellowship for European project. He is senior member of IEEE and a member of Communication society.

Dr Priyanka photo

Dr. Priyanka Das

IIIT Bangalore

Dr. Priyanka Das received the Ph.D. degree in Electrical Communication Engineering from the Indian Institute of Science, Bangalore, India in 2018. She obtained the M.Tech. degree in Digital Signal Processing from the Indian Institute of Technology, Guwahati, India in 2011, and the B.Tech. degree in Radio Physics and Electronics from the University of Calcutta, West Bengal, India in 2009. She also received the B.Sc. degree in Physics Hons. from the University of Burdwan, West Bengal, India in 2006. She worked in Nokia Solutions Networks, Bangalore, India as a summer intern in 2015. She worked in Dell Research and Development, Bangalore, India as a software associate engineer from 2011 to 2012. Presently, she is an Assistant Professor at IIIT Bangalore, India.


Her primary research interest broadly lies at the intersection of probability theory, optimization, and wireless communication, where she seeks to develop new analytical tools for understanding and enhancing the spectral and energy efficiency of next generation wireless communication systems.  Her current research interests include cooperative wireless communication, cognitive radio, MIMO techniques, physical layer security, intelligent reflecting surfaces, and machine learning for communication. She is a regular reviewer of premier IEEE Transactions and other peer-reviewed Journals and IEEE conferences. She is a member of IEEE and a member of Communication society. She is currently serving as PI of the SERB-Power, Govt. of India, funded project on Modeling, Optimization, and Channel Estimation of Intelligent Reflecting Surface – Assisted Underlay Spectrum Sharing for 6G.