10 citations · 12 across the 24 of their papers we have counts for
4 papers · 1 filter
Delay-Doppler Duality: Simplifying Exact Equalization of Zak-OTFS in Time or in Frequency
Mudasir Ahmad Sheikh, Robert Calderbank
The Zak-OTFS carrier waveform is a pulse in the delay-Doppler (DD) domain, and given the input-output (I/O) relation at one DD point in a frame, we can predict the I/O relation at…
Modulation Augmentation and Constellation Shaping for LDPC-Coded QPSK
Heping Wan, Joonyoung Cho, Sandesh Rao Mattu +4
While constellation shaping improves spectral efficiency, its application to quadrature phase-shift keying (QPSK) remains limited. We address this limitation by incorporating a sho…
Zak-OTFS: A Predictable Physical Layer for Communications and Sensing
Sandesh Rao Mattu, Nishant Mehrotra, Venkatesh Khammammetti +1
This tutorial derives the mathematical foundations of what it means for a carrier waveform to be predictable and non-selective. We focus on Zak-OTFS, where each carrier waveform is…
A Universal Neural Receiver that Learns at the Speed of Wireless
Lingjia Liu, Lizhong Zheng, Yang Yi +1
Today we design wireless networks using mathematical models that govern communication in different propagation environments. We rely on measurement campaigns to deliver parametrize…