FEATURED AUTHOR

Rakhesh Singh Kshetrimayum

Professor
IIT Guwahati

Rakhesh Singh Kshetrimayum is a Professor in the department of EEE, IIT Guwahati. He received the Ph.D. degree from the School of EEE, NTU Singapore. Prior to joining IIT Guwahati, he did Postdoctoral research from the department of EE, Pennsylvania State University USA (2005) and the department of ECE, IISc Bangalore (2004-2005). He is a Fellow of the IET and a Senior Member of the IEEE.

Subjects: Engineering - Electrical

Biography

Rakhesh Singh Kshetrimayum (Senior Member, IEEE) received the B.Tech. degree in electrical engineering (EE) from IIT Bombay, India, in 2000, and the Ph.D. degree from the School of Electrical and Electronics Engineering (EEE), Nanyang Technological University, Singapore, in 2005.
Since 2005, he has been a Faculty Member with the Department of EEE, IIT Guwahati, where he is currently working as a Professor and he was the Head of the Centre for Career Development, from 2018 to 2020. He worked as a Postdoctoral Scholar at the Department of EE, Pennsylvania State University, USA, in 2005; Research Associate at the Department of Electrical Communication Engineering, Indian Institute of Science, Bengaluru, from 2004 to 2005 and Software Engineer with Mphasis, Pune, from 2000 to 2001. He has authored or co-authored four books and more than 150 papers in international journals and conference proceedings. His current research interests include antennas, RF circuit designs, and performance analysis for beyond 5G technologies.
Prof. Kshetrimayum is a fellow of IET, U.K. He has received multiple best paper awards, including the IEEE ANTS 2017 Best Paper Award (Third Prize). He was an Editor of the IEEE Communications Letters during 2021-2023 and currently he is serving an Associate Editor of the IEEE Open Journal of Antennas and Propagation. He has also served on the Editorial Board of the IEEE Transactions on Microwave Theory and Techniques and the Program Committee of several international conferences, including IEEE GLOBECOM, IEEE ICC, and APMC. He had delivered several invited talks/tutorials on the topic “MIMO antennas and its effects in MIMO wireless communications,” at the IEEE Texas Symposium 2021, IEEE ANTEM 2021, and IEEE APACE 2021. He was the Session Chair/Co-Chair of ISAP 2021, APMC 2021, IEEE AP-S/URSI 2021, and IEEE DSP 2015; the TPC Chair (communication tracks) of NCC 2016; the TPC Co-Chair of IEEE AEMC 2015 and the General Chair of NCC 2023. He had also served as an Advisor for the IEEE Guwahati Sub-Section in 2021.

Education

Areas of Research / Professional Expertise

Antennas, RF circuit designs and performance analysis for beyond 5G technologies

Websites

Books

Featured Title

Articles

RIS-Assisted Advanced Spatial Modulation Techniques for Ambient Backscattering Communications

Published: Jul 26, 2021 by IEEE Transactions on Green Communications and Networking
Authors: Anirban Bhowal; Sonia Aïssa; Rakhesh Singh Kshetrimayum

The dynamic control of wireless channels is a trending field of research which has been made possible by the advent of metamaterial-based reconfigurable intelligent surfaces (RIS). Moreover, for future applications in 5G and beyond, the device size constraints and power supply issues also need to be resolved before RIS can be deployed at large scale.

Relay based Hybrid FSO/RF communication employing Hybrid Spatial Modulation and Transmit Source Selection

Published: Apr 28, 2021 by IEEE Transactions on Communications
Authors: A. Bhowal and R. S. Kshetrimayum

In this paper, performance analysis of a relay based hybrid free space optical and radio frequency (FSO/RF) communication system is achieved by calculating outage probability.

Advanced Optical Spatial Modulation Techniques for FSO Communication

Published: Nov 03, 2020 by IEEE Transactions on Communications
Authors: A. Bhowal and R. S. Kshetrimayum

In this paper, spectral efficiency of free-space optical (FSO) communication is enhanced by the utilization of advanced schemes of optical spatial modulation (OSM).

Ultra-Broadband Bandpass Filter Using Linearly Tapered Coupled-Microstrip Line and Open Loop Defected Ground Structure

Published: Jul 16, 2020 by IEEE Transactions on Circuits and Systems II: Express Briefs
Authors: R. S. Sangam, S. Dash and R. S. Kshetrimayum

This brief presents a novel highly compact ultrabroadband bandpass filter (BPF) using linearly tapered coupled-microstrip line (LTC-ML) and open loop defected ground structure (OL-DGS).

Rectangular DRA Array for 24 GHz ISM Band Applications

Published: Jul 07, 2020 by IEEE Antennas and Wireless Propagation Letters
Authors: S. Chaudhuri, M. Mishra, R. S. Kshetrimayum, R. K. Sonkar, H. Chel, and V. K. Singh

A planar array antenna consisting of 6 units of rectangular dielectric resonators fed by means of novel microstrip lines through aperture coupling is presented.

Comment on Hybrid Spoof Surface Plasmon Polariton and Substrate Integrated Waveguide Broadband Band pass Filter With Wide Out-of-Band Rejection

Published: Feb 13, 2020 by IEEE Microwave and Wireless Components Letters
Authors: R. S. Sangam and R. S. Kshetrimayum

The dispersion diagrams for the proposed spoof surface plasmon polariton (SSPP) unit [1, Fig. 1(b)] and the substrate-integrated waveguide (SIW) unit [1, Fig. 1(c)] are plotted in [1, Fig. 2] , which are incorrect and the correct dispersion curves for the same are presented here, as shown in Fig. 1 .

Transmit laser selection for two hop decode and forward FSO communication with pointing errors

Published: Sep 10, 2019 by IEEE Communications Letters
Authors: A. Bhowal and R. S. Kshetrimayum

In this letter, two systems have been proposed for efficient unidirectional free space optical (FSO) cooperative communication-one with only transmit laser selection (TLS)

Performance Analysis of B2B Communication for Different Sporting Activities

Published: Jul 14, 2019 by IEEE Sensors Letters
Authors: A. Bhowal and R. S. Kshetrimayum

In this article, body-to-body (B2B) communication has been investigated for different sporting activities in different scenarios. The B2B system performance has been analyzed in terms of outage probability and average symbol error probability (ASEP).

An introduction to UWB communication systems

Published: Mar 21, 2009 by IEEE Potentials
Authors: R. S. Kshetrimayum
Subjects: Engineering - Electrical

Ultra-wideband (UWB) wireless communication is a revolutionary technology for transmitting large amounts of digital data over a wide frequency spectrum using short-pulse, low powered radio signals. UWB commonly refers to a signal or system that either has a large relative bandwidth (BW) that exceeds 20% or a large absolute bandwidth of more than 500 MHz. A 14 February 2002 report and order by the federal communications commission (FCC) authorizes the unlicensed use of UWB in 3.1--10.6 GHz.

A Brief Intro to Metamaterials

Published: Mar 21, 2008 by IEEE Potentials
Authors: R. S. Kshetrimayum

Mobile phones use electromagnetic fields to establish a wireless communication link to the nearest base station. When someone speaks on a mobile phone, that phone is sending out electromagnetic waves (EM).

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