2 citations · 5 across the 14 of their papers we have counts for
14 papers
Structured-Sparsity-Aware Joint User Activity Detection and Channel Estimation for OTFS-Based Grant-Free Random Access
Yao Ge, Yirui Luo, Yuhao Chi +4
Grant-free random access (GFRA) is a promising solution for massive machine-type communications (mMTC) in future wireless networks. However, reliable user activity detection and ch…
CSI RefineNet: A Soft Data-Aided Iterative Receiver for High-Mobility OFDM Systems
Yirui Luo, Yihang Xie, Yao Ge +2
In high-mobility orthogonal frequency division multiplexing (OFDM) systems, rapid channel variation can make the channel state information (CSI) estimated from pilots inaccurate fo…
Data-aided Channel Estimation and Sensing With Sparse Bayesian Learning for AFDM-ISAC System
Yirui Luo, Yong Liang Guan, Yao Ge +3
Affine frequency division multiplexing (AFDM) has emerged as a promising waveform for next-generation integrated sensing and communication (ISAC) systems. However, it becomes chall…
A Unified Multicarrier Waveform Framework for Next-generation Wireless Networks: Principles, Performance, and Challenges
Xingyao Zhang, Haoran Yin, Yanqun Tang +7
Next-generation wireless networks require enhanced flexibility, efficiency, and reliability in physical layer waveform design to address the challenges posed by heterogeneous chann…
Two-Stage Coded-Sliding Beam Training and QoS-Constrained Sum-Rate Maximization for SIM-Assisted Wireless Communications
Qian Zhang, Ju Liu, Yao Ge +5
Stacked intelligent metasurfaces (SIM) provide a cost-effective and scalable solution for large-scale antenna communications.However, efficient channel state information acquisitio…
Local Ambiguity Shaping for Doppler-Resilient Sequences Under Spectral and PAPR Constraints
Shi He, Lingsheng Meng, Yao Ge +3
This paper focuses on designing Doppler-resilient sequences with low local Ambiguity Function (AF) sidelobes, subject to certain spectral and Peak-to-Average Power Ratio (PAPR) con…
Target Sensing With Off-grid Sparse Bayesian Learning for AFDM-ISAC System
Yirui Luo, Yong Liang Guan, Yao Ge +1
The recently proposed multi-chirp waveform, affine frequency division multiplexing (AFDM), is regarded as a prospective candidate for integrated sensing and communication (ISAC) du…
Low Complexity Joint Channel Estimation and Data Detection for AFDM Receivers With Oversampling
Kuranage Roche Rayan Ranasinghe, Yao Ge, Giuseppe Thadeu Freitas de Abreu +1
In this paper, we propose a novel low complexity time domain (TD) oversampling receiver framework under affine frequency division multiplexing (AFDM) waveforms for joint channel es…
Generalized Arlery-Tan-Rabaste-Levenshtein Lower Bounds on Ambiguity Function and Their Asymptotic Achievability
Lingsheng Meng, Yong Liang Guan, Yao Ge +2
This paper presents generalized Arlery-Tan-Rabaste-Levenshtein lower bounds on the maximum aperiodic ambiguity function (AF) magnitude of unimodular sequences under certain delay-D…
Flag Sequence Set Design for Low-Complexity Delay-Doppler Estimation
Lingsheng Meng, Yong Liang Guan, Yao Ge +1
This paper studies Flag sequences for low-complexity delay-Doppler estimation by exploiting their distinctive peak-curtain ambiguity functions (AFs). Unlike the existing Flag seque…
Jamming Suppression Via Resource Hopping in High-Mobility OTFS-SCMA Systems
Qinwen Deng, Yao Ge, Zhi Ding
This letter studies the mechanism of uplink multiple access and jamming suppression in an OTFS system. Specifically, we propose a novel resource hopping mechanism for orthogonal ti…
Energy Efficiency of Rate-Splitting Multiple Access for Multibeam Satellite System
Jinyuan Liu, Yong Liang Guan, Yao Ge +2
Energy efficiency (EE) problem has become an important and major issue in satellite communications. In this paper, we study the beamforming design strategy to maximize the EE of ra…
Low-Complexity Memory AMP Detector for High-Mobility MIMO-OTFS SCMA Systems
Yao Ge, Lei Liu, Shunqi Huang +3
Efficient signal detectors are rather important yet challenging to achieve satisfactory performance for large-scale communication systems. This paper considers a non-orthogonal spa…
OTFS Signaling for SCMA With Coordinated Multi-Point Vehicle Communications
Yao Ge, Qinwen Deng, David González G. +2
This paper investigates an uplink coordinated multi-point (CoMP) coverage scenario, in which multiple mobile users are grouped for sparse code multiple access (SCMA), and served by…