OTFS Modulation – Will it Replace OFDM? by A. Chockalingam

Location: Auditorium, ECE MP Building

ECE faculty colloquium

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Date: 25 October, Friday

Time: 4pm (coffee served at 3:45pm)

Venue: MP auditorium, ECE dept.

Title: OTFS Modulation – Will it Replace OFDM?

Speaker: A. Chockalingam

Abstract:

Orthogonal time frequency space (OTFS) modulation is a recently introduced 2D-modulation scheme designed in the delay-Doppler domain, unlike traditional modulation schemes which are designed in the time-frequency domain. OTFS is particularly attractive for high-Doppler fading channels, e.g., 200-500 Km/hr speeds in sub-6 GHz bands, and moderate to high speeds in mmWave bands (e.g., 28 GHz band). OTFS is expected to cater to emerging applications in high-mobility environments such as high-speed trains, self-driving cars, and drones, where conventional multicarrier modulation schemes such as OFDM are known to be inadequate due to rapid variations of the channel in the time domain. This talk will introduce OTFS modulation and highlight its performance advantages compared to OFDM in point-to-point and multiuser environments.

Speaker Bio:

A. Chockalingam received the B.E. (Honors) degree in ECE from P.S.G. College of Technology, Coimbatore in 1984 and the M.Tech degree in E & ECE from IIT, Kharagpur in 1985. In 1993, he obtained the Ph.D. degree in ECE from IISc, Bangalore. From Dec.1993 to May 1996, he was a Postdoctoral Fellow and an Assistant Project Scientist with the Department of ECE, UC San Diego. From May 1996 to Dec. 1998, he was with Qualcomm, San Diego, as a Staff Engineer/Manager. Currently, he is a Professor in the Department of ECE, IISc, Bangalore.

All are welcome.