1 citations · 1 across the 11 of their papers we have counts for
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Over-the-Air Transmission of Zak-OTFS on mmWave Communications Testbed
Sabarinath Ramachandran, Venkatesh Khammammetti, Prasanthi Maddala +3
Millimeter-wave (mmWave) communication offers vast bandwidth for next-generation wireless systems but faces severe path loss, Doppler effects, and hardware impairments. Orthogonal…
Low-Complexity Equalization of Zak-OTFS in the Frequency Domain
Sandesh Rao Mattu, Nishant Mehrotra, Saif Khan Mohammed +2
4G/5G wireless standards use orthogonal frequency division multiplexing (OFDM) which is robust to frequency selectivity. Equalization is possible with a single tap filter, and low-…
Zak-OTFS Based Coded Random Access for Uplink mMTC
Alessandro Mirri, Venkatesh Khammammetti, Beyza Dabak +3
This paper proposes a grant-free coded random access (CRA) scheme for uplink massive machine-type communications (mMTC), based on Zak-orthogonal time frequency space (Zak-OTFS) mod…
Low-Complexity Frequency Domain Equalization of Zak-OTFS in Doubly-Spread Channels
Saif Khan Mohammed, Sandesh Rao Mattu, Nishant Mehrotra +2
We communicate over wireless channels by first estimating and then equalizing the effective channel. In Zak-OTFS (orthogonal time frequency space) modulation the carrier waveform i…
Over-the-Air Transmission of Zak-OTFS with Spread Pilots on Sub-THz Communications Testbed
Claire Parisi, Venkatesh Khammammetti, Robert Calderbank +1
Looking towards 6G wireless systems, frequency bands like the sub-terahertz (sub-THz) band (100 GHz - 300 GHz) are gaining traction for their promises of large available swaths of…
Low-Complexity Detection of Multiple Preambles in the Presence of Mobility and Delay Spread
Sandesh Rao Mattu, Beyza Dabak, Venkatesh Khammammetti +1
Current wireless infrastructure is optimized to support downlink applications. This paper anticipates the emergence of applications where engineering focus shifts from downlink to…
Delay-Doppler Signal Processing with Zadoff-Chu Sequences
Sandesh Rao Mattu, Imran Ali Khan, Venkatesh Khammammetti +4
Much of the engineering behind current wireless systems has focused on designing an efficient and high-throughput downlink to support human-centric communication such as video stre…