15 papers
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…
Message Passing based Parameter Estimation in Cooperative MIMO-OFDM ISAC Systems
Xiaohan Lv, Rang Liu, Yi Chen +2
In integrated sensing and communication (ISAC) networks, multiple base stations (BSs) collaboratively sense a common target, leveraging diversity from multiple observation perspect…
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…
Graph Learning for Cooperative Cell-Free ISAC Systems: From Optimization to Estimation
Peng Jiang, Ming Li, Rang Liu +1
Cell-free integrated sensing and communication (ISAC) systems have emerged as a promising paradigm for sixth-generation (6G) networks, enabling simultaneous high-rate data transmis…
Impact of Insufficient CP on Sensing Performance in OFDM-ISAC Systems
Peishi Li, Rang Liu, Qian Liu +1
Orthogonal frequency-division multiplexing (OFDM) is widely considered a leading waveform candidate for integrated sensing and communication (ISAC) in 6G networks. However, the cyc…
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…
Low Range-Doppler Sidelobe ISAC Waveform Design: A Low-Complexity Approach
Peishi Li, Ming Li, Rang Liu +2
Integrated sensing and communication (ISAC) is a pivotal enabler for next-generation wireless networks. A key challenge in ISAC systems lies in designing dual-functional waveforms…
Joint Waveform and Beamforming Design in RIS-ISAC Systems: A Model-Driven Learning Approach
Peng Jiang, Ming Li, Rang Liu +2
Integrated Sensing and Communication (ISAC) has emerged as a key enabler for future wireless systems. The recently developed symbol-level precoding (SLP) technique holds significan…
Target Detection in OFDM-ISAC Systems: A Multipath Exploitation Approach
Xiaohan Lv, Rang Liu, Ming Li +1
This paper investigates the potential of multipath exploitation for enhancing target detection in orthogonal frequency division multiplexing (OFDM)-based integrated sensing and com…
Target Detection in ISAC Systems with Active RISs: A Multi-Perspective Observation Approach
Shoushuo Zhang, Rang Liu, Ming Li +2
Integrated sensing and communication (ISAC) has emerged as a transformative technology for 6G networks, enabling the seamless integration of communication and sensing functionaliti…
Multipath Exploitation for Fluctuating Target Detection in RIS-Assisted ISAC Systems
Shoushuo Zhang, Zichao Xiao, Rang Liu +3
Integrated sensing and communication (ISAC) systems are typically deployed in multipath environments, which is usually deemed as a challenging issue for wireless communications. Ho…
Sparsity Exploitation via Joint Receive Processing and Transmit Beamforming Design for MIMO-OFDM ISAC Systems
Zichao Xiao, Rang Liu, Ming Li +2
Integrated sensing and communication (ISAC) is widely recognized as a pivotal enabling technique for the advancement of future wireless networks. This paper aims to efficiently exp…
A Novel Joint Angle-Range-Velocity Estimation Method for MIMO-OFDM ISAC Systems
Zichao Xiao, Rang Liu, Ming Li +2
Integrated sensing and communication (ISAC) is emerging as a key technique for next-generation wireless systems. In order to expedite the practical implementation of ISAC in pervas…