Chengyu Wu

ORCID: 0000-0002-7467-2737
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About
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Research Areas
  • Cognitive Radio Networks and Spectrum Sensing
  • Wireless Communication Networks Research
  • Multiple Myeloma Research and Treatments
  • Image Retrieval and Classification Techniques
  • Advanced MIMO Systems Optimization
  • Advanced Image and Video Retrieval Techniques
  • Wireless Communication Security Techniques
  • Auction Theory and Applications
  • Human Pose and Action Recognition
  • Hand Gesture Recognition Systems
  • Cooperative Communication and Network Coding
  • Video Surveillance and Tracking Methods
  • Protein Degradation and Inhibitors
  • Risk and Portfolio Optimization
  • Electric Power System Optimization
  • Scheduling and Optimization Algorithms
  • Advanced Photonic Communication Systems
  • Gait Recognition and Analysis
  • Advanced Wireless Communication Technologies
  • Smart Grid Energy Management
  • Stochastic processes and financial applications
  • Network Traffic and Congestion Control
  • Wireless Signal Modulation Classification
  • Consumer Market Behavior and Pricing
  • Supply Chain and Inventory Management

Zhejiang Sci-Tech University
2016-2025

Shanghai Jiao Tong University
2011-2025

Ruijin Hospital
2022-2025

Shanghai Institute of Hematology
2022-2025

Ningbo University of Technology
2006-2024

Beijing Guodaotong Highway Design & Research Institute (China)
2024

Beijing University of Technology
2024

Guangdong University of Technology
2012-2022

Jiangsu Normal University
2021

T-Mobile (United States)
2019

We demonstrate a novel photodiode at 1.55-μm wavelength: the near-ballistic uni-traveling-carrier (UTC-PD). After p/sup +/ delta-doped layer was inserted into collector of UTC-PD, transport photogenerated electrons under high reverse bias voltage (-5 V) and output photocurrent (/spl sim/30 mA) observed. The demonstrated device has been combined with an evanescently coupled optical waveguide to attain responsivity saturation power performance. Extremely (1.14 A/W), electrical bandwidth...

10.1109/lpt.2005.853296 article EN IEEE Photonics Technology Letters 2005-08-24

10.1587/transinf.2024edl8090 article EN IEICE Transactions on Information and Systems 2025-01-01

Aberrant alternative splicing is one of the hallmarks cancer and potentially based on upregulated expression factors in some types cancer. Our previous study suggested that factor RBM39 significantly multiple myeloma (MM) its upregulation positively associated with poor prognosis. Here, we further demonstrate survival proliferation MM cells rely knockdown inhibits malignant growth MM. Indisulam, a "molecular glue" mediates proteasomal degradation RBM39, has potent suppressive effects both...

10.1182/bloodadvances.2025015815 article EN cc-by-nc-nd Blood Advances 2025-03-06

10.1587/transinf.2024edl8094 article EN IEICE Transactions on Information and Systems 2025-01-01

Falls are one of the main causes elderly injuries. If faller can be found in time, further injury effectively avoided. In order to protect personal privacy and improve accuracy fall detection, this paper proposes a detection algorithm using CNN-Casual LSTM network based on three-axis acceleration rotation angular velocity sensors. The neural system includes an encoding layer, decoding ResNet18 classifier. Furthermore, layer three layers CNN Casual LSTM. deconvolution maps spatio-temporal...

10.3390/info12100403 article EN cc-by Information 2021-09-29

In this paper,we concentrate on the design, implementation and performance evaluation of medium access control (MAC) for multi-hop sensor networks. Being operated in unlicensed bands, battery-operated nodes need to sense available spectrum consume precious energy. Taking account cognitive radio as well traditional characters wireless networks, we design a MAC protocol network (CRSN) that supplies schemes solution. We propose cluster-based (KoN-MAC) which allows dynamically select an...

10.1109/glocom.2012.6503168 article EN 2015 IEEE Global Communications Conference (GLOBECOM) 2012-12-01

We consider the spectrum handoff delay of a Secondary User (SU) in cognitive radio networks. propose scheme based on Recommended Channel Sensing Sequence (RCSS), which aims to optimise subject sensing reliability and link maintenance constraints. There are two cases that should be considered: 1) SU performs successfully during current frame, 2) using several frames. develop dynamic programming algorithm for RCSS identify optimal sequence first case, an updating improve performance second...

10.1109/cc.2013.6633741 article EN China Communications 2013-08-01

This letter proposes a novel saving-sensing-transmitting (SST) frame structure for energy harvesting cognitive radio networks. As in the conventional SST, proposed SST takes causality constraint (EC-constraint) into consideration, which is referred to as normal mode this letter. Besides, it includes other two modes, sensing and sleeping mode, make full use of residual battery ensure enough time transmission. These modes are activated based on predefined save-ratio threshold. For we maximize...

10.1109/lwc.2016.2591943 article EN IEEE Wireless Communications Letters 2016-07-18

SPAG5, as a spindle-associated protein in mitosis, has been observed to have oncogenic activities solid tumors. Here, we identified that SPAG5 expression was correlated with the deterioration of plasma cell malignancy and overexpression (OE) predicted unfavorable outcomes multiple myeloma (MM). knockdown led anti-MM effects MM lines animal xenograft models by regulating growth apoptosis. Furthermore, gene set enrichment analysis (GSEA) revealed PI3K/AKT/mTOR pathway enriched samples highly...

10.1080/10428194.2022.2086247 article EN Leukemia & lymphoma/Leukemia and lymphoma 2022-06-22

Many techniques have been developed for wireless signal recognition in many fifth generation (5G) enabled derivatives. harsh constraints, such as the large amount of model parameters and complex characteristics, drives intelligent method real-world settings. In this paper, we propose a generalizable, practical raw IQ recognition. Specifically, deep complex-valued convolutional neural network models, including Complex-valued Visual Geometry Group (VGG) (CxVGG) ResNet (CxRN) model, are...

10.1109/access.2022.3171856 article EN cc-by IEEE Access 2022-01-01

In this paper, a clustering algorithm based on mean shift is used to extract the dominant color in CIE L*a*b* space. Earth Mover's Distance calculate dissimilarity. order overcome disadvantages of feature, new method texture proposed. The technique relevance feedback enhance effectiveness. Finally, prototype system developed compare retrieval precision, rank and execution time by two experiments. results show that proposed approach effective.

10.1109/micai.2006.25 article EN 2006-11-01

How to select the transmitting path in MPTCP scheduling is an important but open problem. This paper proposes intelligent data algorithm using spatiotemporal synchronous graph attention neural networks improve scheduling. By exploiting correlations transmission process and incorporating self-attention mechanisms, can quickly optimal ensure fairness among similar links. Through simulations NS3, achieves a throughput gain of 7.9% compared PDAA3C demonstrates improved packet performance.

10.3390/a17040145 article EN cc-by Algorithms 2024-03-30

Multiple myeloma (MM) is the second most prevalent hematologic malignancy which remains uncurable. Numerous drugs have been discovered to inhibit MM cells. Indisulam, an aryl sulfonamide, has a potent anti-myeloma activity in vitro and vivo. This study aims explore new mechanism of indisulam investigate its potential use combination with melphalan. We examined DNA damage cells through various methods such as western blotting (WB), immunofluorescence, comet assay. also identified role...

10.1371/journal.pone.0299019 article EN cc-by PLoS ONE 2024-04-09

The increase in fire accidents caused by indoor charging of electric bicycles has raised concerns among people. Monitoring EBs elevators is challenging, and the current object detection method a variant YOLOv5, which faces problems with calculating load rate. To address this issue, paper presents an improved lightweight based on YOLOv5s to detect elevators. This introduces MobileNetV2 module achieve performance model. By introducing CBAM attention mechanism Bidirectional Feature Pyramid...

10.3390/electronics13132660 article EN Electronics 2024-07-07

10.1109/iciea61579.2024.10665301 article EN 2022 IEEE 17th Conference on Industrial Electronics and Applications (ICIEA) 2024-08-05

In this paper, we propose a new spectrum handoff scheme with admission control (SAC). the proposed scheme, secondary users (SUs) make up user groups (SUGs) to achieve appointed detection probability of primary signals, and perform an available when (PUs) reuse in cognitive radio networks (CRNs). A simple Markov model is adopted analyze performance terms blocking probability, forced termination throughput system. Numerical results show that strategy suitable for multi-user systems,...

10.1109/glocom.2011.6133715 article EN 2011-12-01

This letter considers the optimal channel sensing sequence (CSS) design for spectrum handoff in an overlay multi-channel cognitive radio networks (CRNs). We study frame structure Rayleigh fading channels and formulate CSS problem as a sequential decision-making problem. Considering secondary link maintenance probability during frame, we length to achieve maximum energy efficiency/throughput or minimum consumption. A dynamic programming approach is proposed solve problems. Finally,...

10.1109/lwc.2015.2417556 article EN IEEE Wireless Communications Letters 2015-03-29

Human pose estimation is a complex detection task in which the network needs to capture rich information contained images. In this paper, we propose MSTPose (Multi-Scale Transformer for human Pose estimation). Specifically, leverages high-resolution Convolution neural (CNN) extract texture from For feature maps three different scales produced by backbone network, each branch performs coordinate attention operations. The are then spatially and channel-wise flattened, combined with keypoint...

10.20944/preprints202306.1842.v1 preprint EN 2023-06-27

Human pose estimation is a complex detection task in which the network needs to capture rich information contained images. In this paper, we propose MSTPose (Multi-Scale Transformer for human Pose estimation). Specifically, leverages high-resolution convolution neural (CNN) extract texture from For feature maps three different scales produced by backbone network, each branch performs coordinate attention operations. The are then spatially and channel-wise flattened, combined with keypoint...

10.3390/electronics12153244 article EN Electronics 2023-07-27

Color and texture are important image features. In this paper a clustering algorithm based on mean shift is used to extract the dominant color in CIE Lab space. Earth mover's distance calculate dissimilarity. A new method features proposed, which calculates gray-level variation between neighboring pixels at directions of horizontal, vertical, 45 degree 135 degree. The technique relevance feedback enhance effectiveness. Finally, prototype system developed compare retrieval precision, rank...

10.1109/fskd.2007.355 article EN 2007-01-01

Abstract In this study, a partially observed linear quadratic (LQ) non‐cooperative stochastic differential game of Markov jump system (MJLS) is considered. First, new proof filtering theory given, using the separation principle and technology, partial observations can be transformed into complete observation. Second, nonzero‐sum problem for MJLS are studied dynamic programming completion square method. Then, sufficient necessary conditions Nash equilibrium obtained. Finally, numerical...

10.1002/asjc.2731 article EN Asian Journal of Control 2022-01-23

The performance of optical code-division multiple-access (CDMA) communication systems with avalanche photodiodes (APD) is analyzed. bit error rate (BER) can be accurately computed by using the saddlepoint method. effects multiple-user interference (MUI), signal-dependent shot noise, and receiver thermal noise are investigated. Results numerical integration illustrate non-Gaussian property output distribution. Exact means variances derived for Gaussian approximation. It found that when MUI...

10.1109/50.296201 article EN Journal of Lightwave Technology 1994-06-01
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