Search Results for author: Yafei Wang

Found 15 papers, 1 papers with code

Towards Collaborative Autonomous Driving: Simulation Platform and End-to-End System

no code implementations15 Apr 2024 Genjia Liu, Yue Hu, Chenxin Xu, Weibo Mao, Junhao Ge, Zhengxiang Huang, Yifan Lu, Yinda Xu, Junkai Xia, Yafei Wang, Siheng Chen

This effort necessitates two key foundations: a platform capable of generating data to facilitate the training and testing of V2X-AD, and a comprehensive system that integrates full driving-related functionalities with mechanisms for information sharing.

Autonomous Driving

Robust Symbol-Level Precoding for Massive MIMO Communication Under Channel Aging

no code implementations7 Feb 2024 Yafei Wang, Xinping Yi, Hongwei Hou, Wenjin Wang, Shi Jin

With the signal model in the presence of channel aging, we formulate the signal-to-noise-plus-interference ratio (SINR) balancing and minimum mean square error (MMSE) problems for robust SLP design.

Robust Design

Soft Demodulator for Symbol-Level Precoding in Coded Multiuser MISO Systems

no code implementations16 Oct 2023 Yafei Wang, Hongwei Hou, Wenjin Wang, Xinping Yi, Shi Jin

It is observed that the received SLP signals do not always follow Gaussian distribution, rendering the conventional soft demodulation with the Gaussian assumption unsuitable for the coded SLP systems.

Symbol-Level Precoding for Average SER Minimization in Multiuser MISO Systems

no code implementations11 Oct 2023 Yafei Wang, Hongwei Hou, Wenjin Wang, Xinping Yi

This paper investigates symbol-level precoding (SLP) for high-order quadrature amplitude modulation (QAM) aimed at minimizing the average symbol error rate (SER), leveraging both constructive interference (CI) and noise power to gain superiority in full signal-to-noise ratio (SNR) ranges.

Learning nonparametric DAGs with incremental information via high-order HSIC

1 code implementation11 Aug 2023 Yafei Wang, Jianguo Liu

In the optimal phase, an optimization problem based on first-order Hilbert-Schmidt independence criterion (HSIC) gives an estimated skeleton as the initial determined parents subset.

Interruption-Aware Cooperative Perception for V2X Communication-Aided Autonomous Driving

no code implementations24 Apr 2023 Shunli Ren, Zixing Lei, Zi Wang, Mehrdad Dianati, Yafei Wang, Siheng Chen, Wenjun Zhang

To achieve comprehensive recovery, we design a communication-adaptive multi-scale spatial-temporal prediction model to extract multi-scale spatial-temporal features based on V2X communication conditions and capture the most significant information for the prediction of the missing information.

Autonomous Driving Knowledge Distillation

Damped Anderson Mixing for Deep Reinforcement Learning: Acceleration, Convergence, and Stabilization

no code implementations NeurIPS 2021 Ke Sun, Yafei Wang, Yi Liu, Yingnan Zhao, Bo Pan, Shangling Jui, Bei Jiang, Linglong Kong

Anderson mixing has been heuristically applied to reinforcement learning (RL) algorithms for accelerating convergence and improving the sampling efficiency of deep RL.

reinforcement-learning Reinforcement Learning (RL)

The Benefits of Being Categorical Distributional: Uncertainty-aware Regularized Exploration in Reinforcement Learning

no code implementations7 Oct 2021 Ke Sun, Yingnan Zhao, Enze Shi, Yafei Wang, Xiaodong Yan, Bei Jiang, Linglong Kong

The theoretical advantages of distributional reinforcement learning~(RL) over classical RL remain elusive despite its remarkable empirical performance.

Atari Games Attribute +3

Towards Understanding Distributional Reinforcement Learning: Regularization, Optimization, Acceleration and Sinkhorn Algorithm

no code implementations29 Sep 2021 Ke Sun, Yingnan Zhao, Yi Liu, Enze Shi, Yafei Wang, Aref Sadeghi, Xiaodong Yan, Bei Jiang, Linglong Kong

Distributional reinforcement learning~(RL) is a class of state-of-the-art algorithms that estimate the whole distribution of the total return rather than only its expectation.

Atari Games Distributional Reinforcement Learning +2

Isometric Graph Neural Networks

no code implementations16 Jun 2020 Matthew Walker, Bo Yan, Yiou Xiao, Yafei Wang, Ayan Acharya

Many tasks that rely on representations of nodes in graphs would benefit if those representations were faithful to distances between nodes in the graph.

A Multi-Modal States based Vehicle Descriptor and Dilated Convolutional Social Pooling for Vehicle Trajectory Prediction

no code implementations7 Mar 2020 Huimin Zhang, Yafei Wang, Junjia Liu, Chengwei Li, Taiyuan Ma, Chengliang Yin

Secondly, the LSTM encoder is used to encode the historical sequences composed of the vehicle descriptor and a novel dilated convolutional social pooling is proposed to improve modeling vehicles' spatial interactions.

Autonomous Vehicles Decision Making +1

Jointly Adversarial Network to Wavelength Compensation and Dehazing of Underwater Images

no code implementations12 Jul 2019 Xueyan Ding, Yafei Wang, Yang Yan, Zheng Liang, Zetian Mi, Xianping Fu

Different from most of previous underwater image enhancement methods that compute light attenuation along object-camera path through hazy image formation model, we propose a novel jointly wavelength compensation and dehazing network (JWCDN) that takes into account the wavelength attenuation along surface-object path and the scattering along object-camera path simultaneously.

Generative Adversarial Network Image Enhancement +1

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