170 citations · 256 across the 36 of their papers we have counts for
37 papers
On Discrete Ambiguity Functions of Random Communication Waveforms
Ying Zhang, Fan Liu, Yifeng Xiong +6
This paper provides a fundamental characterization of the discrete ambiguity functions (AFs) of random communication waveforms under arbitrary orthonormal modulation with random co…
UAV-Enabled ISAC with Fluid Antennas for Low-Altitude Wireless Networks
Wenchao Liu, Xuhui Zhang, Jinke Ren +3
Unmanned aerial vehicle (UAV)-enabled integrated sensing and communication (ISAC) is regarded as a key enabler for next-generation wireless systems. However, conventional fixed-pos…
Delay-Doppler Domain Signal Processing Aided OFDM (DD-a-OFDM) for 6G and Beyond
Yiyan Ma, Bo Ai, Jinhong Yuan +10
High-mobility scenarios will be a critical part of 6G systems. Since the widely deployed orthogonal frequency division multiplexing (OFDM) waveform suffers from subcarrier orthogon…
OFDM-Standard Compatible SC-NOFS Waveforms for Low-Latency and Jitter-Tolerance Industrial IoT Communications
Tongyang Xu, Shuangyang Li, Jinhong Yuan
Traditional communications focus on regular and orthogonal signal waveforms for simplified signal processing and improved spectral efficiency. In contrast, the next-generation comm…
Improving the Ranging Performance of Random ISAC Signals Through Pulse Shaping Design
Zihan Liao, Fan Liu, Shuangyang Li +3
In this paper, we propose a novel pulse shaping design for single-carrier integrated sensing and communication (ISAC) transmission. Due to the communication information embedded in…
Fundamentals of Delay-Doppler Communications: Practical Implementation and Extensions to OTFS
Shuangyang Li, Peter Jung, Weijie Yuan +4
The recently proposed orthogonal time frequency space (OTFS) modulation, which is a typical Delay-Doppler (DD) communication scheme, has attracted significant attention thanks to i…
Low Complexity Turbo SIC-MMSE Detection for Orthogonal Time Frequency Space Modulation
Qi Li, Jinhong Yuan, Min Qiu +2
Recently, orthogonal time frequency space (OTFS) modulation has garnered considerable attention due to its robustness against doubly-selective wireless channels. In this paper, we…
From OTFS to DD-ISAC: Integrating Sensing and Communications in the Delay Doppler Domain
Weijie Yuan, Lin Zhou, Saeid K. Dehkordi +4
Next-generation vehicular networks are expected to provide the capability of robust environmental sensing in addition to reliable communications to meet intelligence requirements.…
Extended Target Parameter Estimation and Tracking with an HDA Setup for ISAC Applications
Fernando Pedraza, Saeid K. Dehkordi, Jan C. Hauffen +3
We investigate radar parameter estimation and beam tracking with a hybrid digital-analog (HDA) architecture in a multi-block measurement framework using an extended target model. I…
Reduced-Complexity Cross-Domain Iterative Detection for OTFS Modulation via Delay-Doppler Decoupling
Mengmeng Liu, Shuangyang Li, Baoming Bai +1
In this paper, a reduced-complexity cross-domain iterative detection for orthogonal time frequency space (OTFS) modulation is proposed, which exploits channel properties in both ti…
On the Pulse Shaping for Delay-Doppler Communications
Shuangyang Li, Weijie Yuan, Zhiqiang Wei +3
In this paper, we study the pulse shaping for delay-Doppler (DD) communications. We start with constructing a basis function in the DD domain following the properties of the Zak tr…
Deep Learning-empowered Predictive Precoder Design for OTFS Transmission in URLLC
Chang Liu, Shuangyang Li, Weijie Yuan +2
To guarantee excellent reliability performance in ultra-reliable low-latency communications (URLLC), pragmatic precoder design is an effective approach. However, an efficient preco…
Delay-Doppler Domain Tomlinson-Harashima Precoding for OTFS-based Downlink MU-MIMO Transmissions: Linear Complexity Implementation and Scaling Law Analysis
Shuangyang Li, Jinhong Yuan, Paul Fitzpatrick +2
Orthogonal time frequency space (OTFS) modulation is a recently proposed delay-Doppler (DD) domain communication scheme, which has shown promising performance in general wireless c…
OTFS-SCMA: A Downlink NOMA Scheme for Massive Connectivity in High Mobility Channels
Haifeng Wen, Weijie Yuan, Zilong Liu +1
This paper studies a downlink system that combines orthogonal-time-frequency-space (OTFS) modulation and sparse code multiple access (SCMA) to support massive connectivity in high-…
Radar Sensing via OTFS Signaling: A Delay Doppler Signal Processing Perspective
Kecheng Zhang, Weijie Yuan, Shuangyang Li +4
The recently proposed orthogonal time frequency space (OTFS) modulation multiplexes data symbols in the delay-Doppler (DD) domain. Since the range and velocity, which can be derive…
Predictive Precoder Design for OTFS-Enabled URLLC: A Deep Learning Approach
Chang Liu, Shuangyang Li, Weijie Yuan +2
This paper investigates the orthogonal time frequency space (OTFS) transmission for enabling ultra-reliable low-latency communications (URLLC). To guarantee excellent reliability p…
New Delay Doppler Communication Paradigm in 6G era: A Survey of Orthogonal Time Frequency Space (OTFS)
Weijie Yuan, Shuangyang Li, Zhiqiang Wei +4
In the 6G era, space-air-Ground integrated networks (SAGIN) are anticipated to deliver global coverage, necessitating support for a diverse array of emerging applications in high-m…
Deep CLSTM for Predictive Beamforming in Integrated Sensing and Communication-enabled Vehicular Networks
Chang Liu, Xuemeng Liu, Shuangyang Li +2
Predictive beamforming design is an essential task in realizing high-mobility integrated sensing and communication (ISAC), which highly depends on the accuracy of the channel predi…
Orthogonal Time Frequency Space Modulation -- Part III: ISAC and Potential Applications
Weijie Yuan, Zhiqiang Wei, Shuangyang Li +2
The first two parts of this tutorial on orthogonal time frequency space (OTFS) modulation have discussed the fundamentals of delay-Doppler (DD) domain communications as well as som…
Orthogonal Time Frequency Space Modulation -- Part II: Transceiver Designs
Shuangyang Li, Weijie Yuan, Zhiqiang Wei +2
The fundamental concepts and challenges of orthogonal time frequency space (OTFS) modulation have been reviewed in Part I of this three-part tutorial. In this second part, we provi…
Orthogonal Time Frequency Space Modulation -- Part I: Fundamentals and Challenges Ahead
Zhiqiang Wei, Shuangyang Li, Weijie Yuan +2
This letter is the first part of a three-part tutorial on orthogonal time frequency space (OTFS) modulation, which is a promising candidate waveform for future wireless networks. T…
Orthogonal Time Frequency Space (OTFS) Modulation for Wireless Communications
Shuangyang Li
Orthogonal time frequency space (OTFS) modulation is a recently proposed multi-carrier transmission scheme, which innovatively multiplexes the information symbols in the delay-Dopp…
Predictive Beamforming for Integrated Sensing and Communication in Vehicular Networks: A Deep Learning Approach
Chang Liu, Weijie Yuan, Shuangyang Li +3
The implementation of integrated sensing and communication (ISAC) highly depends on the effective beamforming design exploiting accurate instantaneous channel state information (IC…
Faster-than-Nyquist Asynchronous NOMA Outperforms Synchronous NOMA
Shuangyang Li, Zhiqiang Wei, Weijie Yuan +4
Faster-than-Nyquist (FTN) signaling aided non-orthogonal multiple access (NOMA) is conceived and its achievable rate is quantified in the presence of random link delays of the diff…