Search Results for author: Lixin Li

Found 14 papers, 2 papers with code

Outage Probability Analysis for OTFS with Finite Blocklength

no code implementations13 Apr 2025 Xin Zhang, Wensheng Lin, Lixin Li, Zhu Han, Tad Matsumoto

Orthogonal time frequency space (OTFS) modulation is widely acknowledged as a prospective waveform for future wireless communication networks. To provide insights for the practical system design, this paper analyzes the outage probability of OTFS modulation with finite blocklength. To begin with, we present the system model and formulate the analysis of outage probability for OTFS with finite blocklength as an equivalent problem of calculating the outage probability with finite blocklength over parallel additive white Gaussian noise (AWGN) channels. Subsequently, we apply the equivalent noise approach to derive a lower bound on the outage probability of OTFS with finite blocklength under both average power allocation and water-filling power allocation strategies, respectively. Finally, the lower bounds of the outage probability are determined using the Monte-Carlo method for the two power allocation strategies. The impact of the number of resolvable paths and coding rates on the outage probability is analyzed, and the simulation results are compared with the theoretical lower bounds.

Emergency Communication: OTFS-Based Semantic Transmission with Diffusion Noise Suppression

no code implementations10 Apr 2025 Kexin Zhang, Xin Zhang, Lixin Li, Wensheng Lin, Wenchi Cheng, Qinghe Du

However, the complex channel conditions in high-speed mobile scenarios significantly impact the reliability and efficiency of traditional communication systems.

Denoising Key Information Extraction +1

RIS-Aided Integrated Sensing and Communication Waveform Design With Tunable PAPR

no code implementations10 Apr 2025 Jinlong Wu, Lixin Li, Wensheng Lin, Wei Liang, Decan Zhao, Zhu Han

Low peak-to-average power ratio (PAPR) transmission is an important and favorable requirement prevalent in radar and communication systems, especially in transmission links integrated with high power amplifiers.

Integrated sensing and communication ISAC

Improved AFSA-Based Beam Training Without CSI for RIS-Assisted ISAC Systems

no code implementations10 Apr 2025 Yunxiang Shi, Lixin Li, Wensheng Lin, Wei Liang, Zhu Han

In this paper, we consider transmit beamforming and reflection patterns design in reconfigurable intelligent surface (RIS)-assisted integrated sensing and communication (ISAC) systems, where the dual-function base station (DFBS) lacks channel state information (CSI).

Integrated sensing and communication ISAC

SC-CDM: Enhancing Quality of Image Semantic Communication with a Compact Diffusion Model

no code implementations3 Oct 2024 Kexin Zhang, Lixin Li, Wensheng Lin, Yuna Yan, Wenchi Cheng, Zhu Han

This approach leverages compact diffusion models to improve the fidelity and semantic accuracy of the images reconstructed after transmission, ensuring that the essential content is preserved even in bandwidth-constrained environments.

Image Reconstruction Semantic Communication

Lossy Cooperative UAV Relaying Networks: Outage Probability Analysis and Location Optimization

no code implementations3 Oct 2024 Ya Lian, Wensheng Lin, Lixin Li, Fucheng Yang, Zhu Han, Tad Matsumoto

In this paper, performance of a lossy cooperative unmanned aerial vehicle (UAV) relay communication system is analyzed.

Position

SAFE: Semantic Adaptive Feature Extraction with Rate Control for 6G Wireless Communications

no code implementations2 Oct 2024 Yuna Yan, Lixin Li, Xin Zhang, Wensheng Lin, Wenchi Cheng, Zhu Han

Most current Deep Learning-based Semantic Communication (DeepSC) systems are designed and trained exclusively for particular single-channel conditions, which restricts their adaptability and overall bandwidth utilization.

Semantic Communication

IRS-Assisted Lossy Communications Under Correlated Rayleigh Fading: Outage Probability Analysis and Optimization

no code implementations13 Aug 2024 Guanchang Li, Wensheng Lin, Lixin Li, Yixuan He, Fucheng Yang, Zhu Han

This paper focuses on an intelligent reflecting surface (IRS)-assisted lossy communication system with correlated Rayleigh fading.

FSSC: Federated Learning of Transformer Neural Networks for Semantic Image Communication

no code implementations31 Jul 2024 Yuna Yan, Xin Zhang, Lixin Li, Wensheng Lin, Rui Li, Wenchi Cheng, Zhu Han

In this paper, we address the problem of image semantic communication in a multi-user deployment scenario and propose a federated learning (FL) strategy for a Swin Transformer-based semantic communication system (FSSC).

Federated Learning Semantic Communication

Semantic Successive Refinement: A Generative AI-aided Semantic Communication Framework

no code implementations31 Jul 2024 Kexin Zhang, Lixin Li, Wensheng Lin, Yuna Yan, Rui Li, Wenchi Cheng, Zhu Han

To address this issue, we introduce a novel Generative AI Semantic Communication (GSC) system for single-user scenarios.

Semantic Communication

ClST: A Convolutional Transformer Framework for Automatic Modulation Recognition by Knowledge Distillation

no code implementations29 Dec 2023 Dongbin Hou, Lixin Li, Wensheng Lin, Junli Liang, Zhu Han

With the rapid development of deep learning (DL) in recent years, automatic modulation recognition (AMR) with DL has achieved high accuracy.

Automatic Modulation Recognition Knowledge Distillation

SemantIC: Semantic Interference Cancellation Towards 6G Wireless Communications

1 code implementation19 Oct 2023 Wensheng Lin, Yuna Yan, Lixin Li, Zhu Han, Tad Matsumoto

This letter proposes a novel anti-interference technique, semantic interference cancellation (SemantIC), for enhancing information quality towards the sixth-generation (6G) wireless networks.

Decoder

Semantic-Forward Relaying: A Novel Framework Towards 6G Cooperative Communications

1 code implementation12 Oct 2023 Wensheng Lin, Yuna Yan, Lixin Li, Zhu Han, Tad Matsumoto

This letter proposes a novel relaying framework, semantic-forward (SF), for cooperative communications towards the sixth-generation (6G) wireless networks.

Robust Secrecy via Aerial Reflection and Jamming: Joint Optimization of Deployment and Transmission

no code implementations28 Feb 2023 Xiao Tang, Hongliang He, Limeng Dong, Lixin Li, Qinghe Du, Zhu Han

The security gain with aerial reflection and jamming is further improved with the optimized deployment of the aerial platform.

Deep Reinforcement Learning

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