activity
20072025
most citedOTFS -- A Mathematical Foundation for Communication and Radar Sensing in the Delay-Doppler Domain

163 citations · 870 across the 61 of their papers we have counts for

collaborators

62 papers

eess.SP2025

Zak-OTFS over CP-OFDM

Saif Khan Mohammed, Saurabh Prakash, Muhammad Ubadah +7

Zak-Orthogonal Time Frequency Space (Zak-OTFS) modulation has been shown to achieve significantly better performance compared to the standardized Cyclic-Prefix Orthogonal Frequency…

eess.SP2025

Zak-OTFS based Multiuser Uplink in Doubly-Spread Channels

Imran Ali Khan, Saif Khan Mohammed, Ronny Hadani +2

Wireless users with different characteristics will be expected to share spectrum in next generation communication networks. One of the great strengths of wireless networks based on…

eess.SP2025

Precoded Zak-OTFS for Per-Carrier Equalization

Saif Khan Mohammed, Amit Kumar Pathak, Muhammad Ubadah +3

In Zak-OTFS (orthogonal time frequency space) modulation the carrier waveform is a pulse in the delay-Doppler (DD) domain, formally a quasi-periodic localized function with specifi…

eess.SP2025★ 1 cited

Waveform for Next Generation Communication Systems: Comparing Zak-OTFS with OFDM

Imran Ali Khan, Saif Khan Mohammed, Ronny Hadani +6

Across the world, there is growing interest in new waveforms, Zak-OTFS in particular, and over-the-air implementations are starting to appear. The choice between OFDM and Zak-OTFS…

cs.IT2025

Closed-Form Expressions for I/O Relation in Zak-OTFS with Different Delay-Doppler Filters

Arpan Das, Fathima Jesbin, Ananthanarayanan Chockalingam

The transceiver operations in the delay-Doppler (DD) domain in Zak-OTFS modulation, including DD domain filtering at the transmitter and receiver, involve twisted convolution opera…

cs.IT2025★ 1 cited

A Gaussian-Sinc Pulse Shaping Filter for Zak-OTFS

Arpan Das, Fathima Jesbin, Ananthanarayanan Chockalingam

The choice of delay-Doppler domain (DD) pulse shaping filter plays an important role in determining the performance of Zak-OTFS. Sinc filter has good main lobe characteristics (wit…