Search Results for author: Wen Chen

Found 15 papers, 5 papers with code

Energy-Efficient IRS-Aided NOMA Beamforming for 6G Wireless Communications

no code implementations30 Mar 2022 Asim Ihsan, Wen Chen, Muhammad Asif, Wali Ullah Khan, Jun Li

This manuscript presents an energy-efficient alternating optimization framework based on intelligent reflective surfaces (IRS) aided non-orthogonal multiple access beamforming (NOMA-BF) system for 6G wireless communications.

Multi-Antenna Systems by Transmissive Reconfigurable Meta-Surface

no code implementations12 Sep 2021 Zhendong Li, Wen Chen, Chong He, Xudong Bai, Jianmin Lu

Reconfigurable meta-surface (RMS) is proposed as a very promising and novel technology, which is composed of a large number of low-cost passive elements, and can achieve passive beamforming by controlling the amplitude and phase of incident electromagnetic (EM) waves.

Energy-Efficient Backscatter Aided Uplink NOMA Roadside Sensor Communications under Channel Estimation Errors

no code implementations11 Sep 2021 Asim Ihsan, Wen Chen, Wali Ullah Khan, Qingqing Wu, Kunlun Wang

In the second stage, AOBWS uses a non-iterative algorithm that provides a closed-form expression for the computation of optimal reflection coefficient for roadside sensors under their quality of service (QoS) and a circuit power constraint.

Joint Communication and Trajectory Design for Intelligent Reflecting Surface Empowered UAV SWIPT Networks

no code implementations23 Jul 2021 Zhendong Li, Wen Chen, Huanqing Cao, Hongying Tang, Kunlun Wang, Jun Li

Aiming at the limited battery capacity of widely deployed low-power smart devices in the Internet-of-things (IoT), this paper proposes a novel intelligent reflecting surface (IRS) empowered unmanned aerial vehicle (UAV) simultaneous wireless information and power transfer (SWIPT) network framework, in which IRS is used to reconstruct the wireless channel to enhance the wireless energy transmission efficiency and coverage area of the UAV SWIPT networks.

Hybrid Supervision Learning for Pathology Whole Slide Image Classification

1 code implementation2 Jul 2021 Jiahui Li, Wen Chen, Xiaodi Huang, Zhiqiang Hu, Qi Duan, Hongsheng Li, Dimitris N. Metaxas, Shaoting Zhang

To handle this problem, we propose a hybrid supervision learning framework for this kind of high resolution images with sufficient image-level coarse annotations and a few pixel-level fine labels.

Classification Image Classification +2

Federated Learning with Unreliable Clients: Performance Analysis and Mechanism Design

1 code implementation10 May 2021 Chuan Ma, Jun Li, Ming Ding, Kang Wei, Wen Chen, H. Vincent Poor

Owing to the low communication costs and privacy-promoting capabilities, Federated Learning (FL) has become a promising tool for training effective machine learning models among distributed clients.

Federated Learning

Joint Transceiver Design Based on Dictionary Learning Algorithm for SCMA

no code implementations30 Oct 2020 Shanshan Zhang, Wen Chen, Shaoyuan Chen

With the explosively increasing demands on the network capacity, throughput and number of connected wireless devices, massive connectivity is an urgent problem for the next generation wireless communications.

Dictionary Learning

Energy-Efficient NOMA Multicasting System for 5G Cellular V2X Communications with Imperfect CSI

no code implementations8 Sep 2020 Asim Ihsan, Wen Chen, Shunqing Zhang, Shugong Xu

The proposed system multicast the information through low complexity optimal power allocation algorithms used under channel outage probability constraint of vehicles with imperfect CSI, QoS constraints of vehicles, and transmit power limits constraint of RSUs.

Deep neural network for optimal retirement consumption in defined contribution pension system

no code implementations20 Jul 2020 Wen Chen, Nicolas Langrené

In this paper, we develop a deep neural network approach to solve a lifetime expected mortality-weighted utility-based model for optimal consumption in the decumulation phase of a defined contribution pension system.

Neutral bots probe political bias on social media

1 code implementation17 May 2020 Wen Chen, Diogo Pacheco, Kai-Cheng Yang, Filippo Menczer

Conservative accounts also find themselves in denser communities and are exposed to more low-credibility content.

Social and Information Networks Computers and Society

SCMA Spectral and Energy Efficiency with QoS

no code implementations21 Apr 2020 Samira Jaber, Wen Chen, Kunlun Wang, Qingqing Wu

Moreover, the proposed method is compared with orthogonal frequency devision multiple access (OFDMA) and code devision multiple access (CDMA) in terms of spectral efficiency (SE) and energy efficiency (EE) respectively.

Automatic Layout Generation with Applications in Machine Learning Engine Evaluation

1 code implementation12 Dec 2019 Haoyu Yang, Wen Chen, Piyush Pathak, Frank Gennari, Ya-Chieh Lai, Bei Yu

The tool currently supports both metal layer and via layer generation.

POG: Personalized Outfit Generation for Fashion Recommendation at Alibaba iFashion

1 code implementation6 May 2019 Wen Chen, Pipei Huang, Jiaming Xu, Xin Guo, Cheng Guo, Fei Sun, Chao Li, Andreas Pfadler, Huan Zhao, Binqiang Zhao

In particular, there exist two requirements for fashion outfit recommendation: the Compatibility of the generated fashion outfits, and the Personalization in the recommendation process.

Cannot find the paper you are looking for? You can Submit a new open access paper.