Talk 6: Challenges for 5G Transceiver Front-End and Their Software-Defined Solutions by Dr. M. Rawat

DAIICT Winter School on 5G Communications

Dr. Meenakshi Rawat
Assistant Professor
IIT Roorkee

Massive MIMO and NOMA in 5G

Multi-band transmitter systems are evolving to support the smooth transition from 3G to 4G and 5G communication systems. For 5G communication, in sub6G communication, the bandwidth is anticipated to be around 100 MHz and in mm-wave (28GHz39GHz60GHz) communication band, the bandwidth is anticipated to be even higher. With the nonlinear distortions, the state-of-the art digital predistortion techniques need to process five to seven times of the signal bandwidth, and their performance are limited by the speed of DAC and ADC while supporting such a large bandwidth. The system suffers from further interference if the multiband communication is employed for such signals. This talk presents the low-cost portable solutions to linearize such 5G signals in the presence of very wide bandwidth and multiband/multi-standard operations.

Dr. Rawat's Bio

Meenakshi Rawat received the M.Sc. and Ph.D. degrees in electrical and computer engineering from the University of Calgary, Calgary, AB, Canada, in 2012. From September 2012 to June 2013, she was a Post-Doctoral Research Fellow with the University of Calgary. From July 2013 to June 2014, she was a Post-Doctoral Project ResearcherScientist with the Ohio State University. She is currently an Assistant Professor with the Indian Institute of Technology (IIT), Roorkee, Uttarakhand, India. Dr. Rawat was workshop co-chair for ARFTG-82 and session co-chair for MMwave and THz Designs for iMARC 2014, Bangalore, India. She was part of the Calgary group that won Overall Championship and Best Design Prize of the 3rd Annual Smart Radio Challenge, Wireless Innovation Forum. She was also the three-time recipient of the Research Production Award of the University of Calgary and Best Poster Award of the 82nd and 83rd Automatic RF Techniques Group (ARFTG) Conference, Columbus, OH, USA, in 2013. She has been listed as featured engineer on EEWeb. Her area of interest lies in digital and analog signal processing for communication signal quality enhancement in 4G5G communication signals. She is author of more than 40 paper and currently handling four research projects. She is one of the founding director of the company “Linearized amplifier technologies and services private limited”.