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Low Overhead MIMO‐OTFS Channel Estimation
Overview of method to reduce pilot overhead
Invention Summary:
Orthogonal time frequency space (OTFS) modulation provides reliable communication in high mobility environments and is a promising candidate for 6G, but existing approaches require large amounts of pilot overhead when transmitting. This wastes bandwidth as well as limiting scalability...
Published: 9/5/2025
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Inventor(s): Kailong Wang, Athina Petropulu
Keywords(s):
Category(s): Technology Classifications > Physical Sciences & Engineering, Technology Classifications > Telecommunications & Networking
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Virtual Array for Dual Function MIMO Radar Communication Systems using OTFS Waveforms
Angle estimation performance of the OTFS system on 3 targets with all DD bins used as shared. Black lines represent ground truth
Invention Summary:
Multi-input multi-output (MIMO) technology is widely used for its ability to communicate with multiple devices simultaneously. A major advantage of MIMO radars is their capacity to form virtual...
Published: 9/5/2025
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Inventor(s): Kailong Wang, Athina Petropulu
Keywords(s):
Category(s): Technology Classifications > Physical Sciences & Engineering, Technology Classifications > Telecommunications & Networking
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Enhancing Privacy in Radar-Based Vital Sign Monitoring via Non-Linear FMCW Waveforms
Privacy-preserving radar vital sign monitoring thanks to a novel non-linear FMCW waveform: Authorized users recover vital signs accurately, while eavesdroppers receive unintelligible signals
Invention Summary:
Vital sign monitoring offers a contactless, low-cost and continuous solution for the monitoring of vital...
Published: 8/21/2025
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Inventor(s): Athina Petropulu, Zhihao Tao
Keywords(s):
Category(s): Technology Classifications > Electronics/Semiconductor, Technology Classifications > Physical Sciences & Engineering
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MONITORING VITAL SIGNS OF MULTIPLE PERSONS VIA SINGLE PHASED-MIMO RADAR
BR and HR estimation by applying frequency analysis on the phase of mmWave signals
Invention Summary:
Existing real-time cardiovascular disease monitoring methods are mostly based on wearable solutions, such as finger pulse meters, smart watches, electro-cardiograms (ECGs). These methods are intrusive, costly, require direct contact with...
Published: 8/12/2025
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Inventor(s): Athina Petropulu, Zhaoyi Xu, Chung-Tse Wu
Keywords(s):
Category(s): Technology Classifications > Software & Algorithms, Technology Classifications > Software & Copyright, Technology Classifications > Telecommunications & Networking
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A Deep Learning Approach for Channel Prediction in Mobile Relay
Invention Summary:
Optimal positioning of mobile relays is critical to relay motion control in mobile relay beamforming networks. It requires Channel State Information (CSI) of the potential positions to predict the channel state, which is hard to obtain in a spatiotemporally variable channel.
Rutgers researchers have developed novel deep...
Published: 8/12/2025
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Inventor(s): Athina Petropulu, Spilios Evmorfos
Keywords(s): Wireless
Category(s): Technology Classifications > Artificial Intelligence & Machine Learning, Technology Classifications > Software & Algorithms, Technology Classifications > Telecommunications & Networking, Technology Classifications > Physical Sciences & Engineering, Technology Classifications > Software & Copyright
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Simultaneous Sensing and Communication by Multiple‐Input Multiple‐Output (MIMO) Dual‐Function Radar Communication (DFRC) System
Invention Summary:
In orthogonal frequency division multiplexing (OFDM) system, the subcarriers are generally assigned to antennas where the transmissions of the antennas are orthogonal. To increase the efficiency of the communication bandwidth, the carriers should be assigned to antennas in a shared way which would result in coupling...
Published: 4/21/2024
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Inventor(s): Athina Petropulu, Zhaoyi Xu
Keywords(s):
Category(s): Technology Classifications > Physical Sciences & Engineering, Technology Classifications > Software & Algorithms, Technology Classifications > Software & Copyright, Technology Classifications > Telecommunications & Networking
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Optimal Relay Beamforming with Predictive Relay Selection for mmWave Communications in Urban Environments
Invention Summary:
Millimeter wave (mmWave) communications supports high data rates with extremely high frequency, showing the promising potential in the future wireless communications including 5G networks. However, their sensitivity to blockage and severe signal attenuation present challenges in their deployment in urban settings. Current solutions...
Published: 8/12/2025
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Inventor(s): Athina Petropulu, Anastasios Dimas, Dionysios Kalogerias
Keywords(s): Wireless
Category(s): Technology Classifications > Physical Sciences & Engineering, Technology Classifications > Software & Copyright, Technology Classifications > Software & Algorithms, Technology Classifications > Telecommunications & Networking
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