10 papers · 1 filter
Delay-Doppler Sensing Performance Analysis for MIMO-OFDM ISAC Systems
Peishi Li, Rang Liu, Qian Liu +1
In communication-centric integrated sensing and communication (ISAC), delay-Doppler sensing reuses data-bearing orthogonal frequency division multiplexing (OFDM) signals rather tha…
Multiuser MIMO-AFDM Beamforming for ISAC in Doubly Dispersive Channels
Rang Liu, Ming Li, A. Lee Swindlehurst +2
Integrated sensing and communication (ISAC) in high-mobility channels requires waveform and beamforming designs that are robust to delay-Doppler dispersion. With this in mind, in t…
Extended Target Sensing in MIMO-OFDM ISAC Systems: Modeling, Optimization and Estimation
Rang Liu, Ming Li, A. Lee Swindlehurst
This paper develops a comprehensive target modeling, beamforming optimization, and parameter estimation framework for extended-target sensing in wideband MIMO-OFDM integrated sensi…
OFDM-ISAC Beyond CP Limit: Performance Analysis and Mitigation Algorithms
Peishi Li, Ming Li, Rang Liu +2
Orthogonal frequency division multiplexing (OFDM) is well-suited for integrated sensing and communications (ISAC), yet its cyclic prefix (CP) is dimensioned for communications-grad…
Reconfigurable Antenna Arrays: Bridging Electromagnetics and Signal Processing
Mengzhen Liu, Ming Li, Rang Liu +2
Reconfigurable antennas (RAs), capable of dynamically adapting their radiation patterns, polarization states, and operating frequencies, have emerged as a promising technology to m…
Clutter Suppression in ISAC Systems with Compound Reconfigurable Antenna Arrays
Mengzhen Liu, Ming Li, Rang Liu +2
Integrated sensing and communication (ISAC) systems often suffer severe performance degradation due to strong clutter echoes, and spatial-only beamforming is often inadequate for r…
Multi-Domain Optimization Framework for ISAC: From Electromagnetic Shaping to Network Cooperation
Rang Liu, Ming Li, Mehdi Zafari +2
Integrated sensing and communication (ISAC) has emerged as a key feature for sixth-generation (6G) networks, providing an opportunity to meet the dual demands of communication and…
Sensing-Oriented Adaptive Resource Allocation Designs for OFDM-ISAC Systems
Peishi Li, Ming Li, Rang Liu +2
Orthogonal frequency division multiplexing - integrated sensing and communication (OFDM-ISAC) has emerged as a key enabler for future wireless networks, leveraging the widely adopt…
Joint Array Partitioning and Beamforming Designs in ISAC Systems: A Bayesian CRB Perspective
Rang Liu, Ming Li, A. Lee Swindlehurst
Integrated sensing and communication (ISAC) has emerged as a promising paradigm for next-generation (6G) wireless networks, unifying radar sensing and communication on a shared har…
CRB Optimization using a Parametric Scattering Model for Extended Targets in ISAC Systems
Rang Liu, A. Lee Swindlehurst, Ming Li
This paper presents a novel parametric scattering model (PSM) for sensing extended targets in integrated sensing and communication (ISAC) systems. The PSM addresses the limitations…