Lei Jiang

ORCID: 0000-0001-7991-0282
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About
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Research Areas
  • Cooperative Communication and Network Coding
  • Ultra-Wideband Communications Technology
  • Full-Duplex Wireless Communications
  • Speech and Audio Processing
  • Advanced Wireless Communication Techniques
  • Wireless Communication Networks Research
  • EEG and Brain-Computer Interfaces
  • Direction-of-Arrival Estimation Techniques
  • Face and Expression Recognition
  • Antenna Design and Analysis
  • Advanced MIMO Systems Optimization
  • Advanced Wireless Communication Technologies
  • Gaze Tracking and Assistive Technology
  • Advanced Data Compression Techniques
  • Neural dynamics and brain function
  • Image and Signal Denoising Methods
  • Face Recognition and Perception
  • Blind Source Separation Techniques
  • Error Correcting Code Techniques
  • Wireless Signal Modulation Classification
  • Microwave Engineering and Waveguides
  • Radar Systems and Signal Processing
  • Underwater Acoustics Research
  • COVID-19 diagnosis using AI
  • Cardiac Ischemia and Reperfusion

First Affiliated Hospital of Wenzhou Medical University
2023

Wenzhou Medical University
2023

Air Force Engineering University
2005-2022

Zhejiang University of Science and Technology
2017-2021

Taiyuan University of Technology
2021

Zhejiang University
2013-2017

Dalian Minzu University
2015

NEC (China)
2014

Naval University of Engineering
2012

Alcatel Lucent (Germany)
2010

Automatic modulation classification (AMC) is the key technique in both military and civilian wireless communication. However, performance unsatisfactory, even several deep learning-based methods are involved. Targeting its low accuracy at SNR, high computational cost label overdependence, we propose a novel AMC framework, where autoencoder (AE) serves as backbone Convolution-AE LSTM-AE combined parallel way temporal spatial feature extractors. The comparisons with serval algorithms on...

10.1109/lcomm.2022.3179003 article EN IEEE Communications Letters 2022-06-06

Background: Thioredoxin 1 (Trx-1) is a small redox protein predominantly localized in the cytoplasm. Its expression increased several cancers, including colorectal cancer (CRC). However, function of Trx-1 translocation to nucleus not clear. In this study, we investigated role nuclear development CRC. Methods: Expression and STAT3 was analyzed by Western blot immunofluorescence. Endogenous interaction Trx-1, STAT3, karyopherin α1 CRC cells co-immunoprecipitation. pSTAT3 staining human tissues...

10.7150/thno.85460 article EN cc-by Theranostics 2023-01-01

This article presents a structure constraint matrix factorization framework for different behavior segmentation of the human sequential data. is based on structural information continuity and high similarity between neighboring frames. Due to dimensionality data, high-precision hard achieve from perspective application academia. By making hypothesis, first, effective regular terms are constructed. Subsequently, clustering constrained non-negative established. Finally, result can be obtained...

10.1109/tcyb.2021.3095357 article EN IEEE Transactions on Cybernetics 2021-08-17

The Segment Anything Model (SAM) represents a state-of-the-art research advancement in natural image segmentation, achieving impressive results with input prompts such as points and bounding boxes. However, our evaluation recent indicate that directly applying the pretrained SAM to medical segmentation does not yield satisfactory performance. This limitation primarily arises from significant domain gap between images images. To bridge this gap, we introduce SAM-Med2D, most comprehensive...

10.48550/arxiv.2308.16184 preprint EN other-oa arXiv (Cornell University) 2023-01-01

The carbon footprint associated with large language models (LLMs) is a significant concern, encompassing emissions from their training, inference, experimentation, and storage processes, including operational embodied emissions. An essential aspect accurately estimating the impact of emerging LLMs even before which heavily relies on GPU usage. Existing studies have reported LLM but only one tool, mlco2, can predict new neural networks prior to physical training. However, mlco2 has several...

10.48550/arxiv.2309.14393 preprint EN cc-by arXiv (Cornell University) 2023-01-01

Segment Anything Model (SAM) has achieved impressive results for natural image segmentation with input prompts such as points and bounding boxes. Its success largely owes to massive labeled training data. However, directly applying SAM medical cannot perform well because lacks knowledge -- it does not use images training. To incorporate into SAM, we introduce SA-Med2D-20M, a large-scale dataset of 2D built upon numerous public private datasets. It consists 4.6 million 19.7 corresponding...

10.48550/arxiv.2311.11969 preprint EN other-oa arXiv (Cornell University) 2023-01-01

Face recognition has attracted great interest especially in computer vision, but poses and illumination of the face lay difficulty accuracy. Studies on human field cognitive neuroscience found some face-specific event-related potential (ERP) components, such as N170, VPP. And researchers used these ERP components to achieve detection based Brain Computer Interface (BCI) system. In this paper, we introduce a BCI system using rapid serial visual presentation (RSVP) paradigm evaluate...

10.1109/ner.2013.6695878 article EN 2013-11-01

Current multibeam satellite systems perform centralized power and carrier allocation assuming a multi-frequency time division multiple access (MF-TDMA) scheme with fixed regular frequency reuse. This approach is not optimal when individual SINR constraints are to be met. In this paper, we formulate the problem of joint allowing non-regular setting will increase interference levels but in turn allow more efficient use increasing spectral efficiency. We focus on distributed formulation compare...

10.1109/glocom.2009.5425593 article EN GLOBECOM '05. IEEE Global Telecommunications Conference, 2005. 2009-11-01

This paper proposes a relay channel model which takes into account the influence of location and antenna configuration. Simulation results show that when is in line-of-sight (LOS) propagation environment, capacity will degrade. To improve performance channel, water-filling (WF) algorithm used to allocate power, simulation shows WF-based outperforms uniform power allocation channel. The radiation pattern also an importance factor affects this case. widely Rayleigh overestimates compared with...

10.1109/vetecs.2008.99 article EN IEEE Vehicular Technology Conference 2008-05-01

In this paper, we study the channel estimation problem for time division multiplex amplify-and-forward (AF) relay channels. Both source and destination also in-between node comprise multiple antennas, there are spatial fading correlations in each hop. We first derive a linear minimum mean square error (LMMSE) estimator from simple scenario where no among antennas to more general spatially correlated. And then design optimal training sequences by minimizing (MSE). Also impacts of...

10.1109/vetecf.2010.5594160 article EN 2010-09-01

Recent face recognition techniques have achieved remarkable successes in fast retrieval on huge image datasets. But the performance is still limited when large illumination, pose, and facial expression variations are presented. In contrast, human brain has powerful cognitive capability to recognize faces demonstrates robustness across viewpoints, lighting conditions, even presence of partial occlusion. This paper proposes a closed-loop system that combines state-of-the-art method with...

10.1109/tamd.2015.2446499 article EN IEEE Transactions on Autonomous Mental Development 2015-06-17

In modulation classification domain, handcrafted feature based method can fit well from a few labeled samples, while deep learning require large amount of samples to achieve the superior performance. order improve accuracy under constraint limited this paper proposes few-shot on dimension reduction and pseudo-label training (FDRPLT), which combines with method. First, an optimal low-dimensional subset is created by combination features autoencoder-extracted post-processed selection...

10.1109/access.2020.3012712 article EN cc-by IEEE Access 2020-01-01

Perception and navigation control is core key technology for the legged robot to adapt complex terrain achieve autonomous walking. It distinguish from manned equipment become a ground unmanned system. In this paper, SLAM globally localization system based on lidar point cloud established, framework combination of topological measurements proposed realize map reconstruction wild environment. Path planning Dijkstra algorithm implement task quadruped robot, obstacle avoidance strategy local...

10.1109/icus50048.2020.9275012 article EN 2020 3rd International Conference on Unmanned Systems (ICUS) 2020-11-27

10.1007/s11804-007-6050-4 article EN Journal of Marine Science and Application 2007-03-01

The automatic machine face recognition has achieved great performance but is still far from satisfactory in the uncontrolled environments. Human brain a powerful ability to recognize faces across various conditions, which makes it possible introduce brain-computer interface (BCI) technology recognition. However, of single-participant based BCI suffers low signal-to-noise ratio electroencephalography (EEG) signals, especially detecting event-related potential (ERP) single trial. Here, we...

10.1109/ner.2015.7146571 article EN 2015-04-01

The capacity of M-ary PPM ultra-wideband communications over multipath channels is analyzed in this paper. And the closed form output signal-to-noise ratio (SNR) receiver derived. In addition, link budget taken into account incorporate to specific constraints, which are mainly power spectrum density limitation under FCC part 15 rules. Finally, influence muitipath number on and compared user number. It shown that decreased faster with increasement than

10.1109/mape.2005.1618235 article EN IEEE International Symposium on Microwave, Antenna, Propagation and EMC Technologies for Wireless Communications 2006-04-28

(Abstract) In this paper, the transport efficiency of Multi Protocol Encapsulation (MPE), Unidirectional Lightweight (ULE) and Generic Stream (GSE) for typical IP packet sizes is compared. Moreover, aggregated when applying packet-level forward error correction (PL-FEC) with MPE, ULE GSE also analyzed. MPE-FEC mechanism used by DVB-H whereas GSE-FEC our proposed modification to be in DVB-S2. A layered calculation model presented order simplify computation. The performance analyzed adopted...

10.2514/6.2007-3147 article EN 25th AIAA International Communications Satellite Systems Conference (organized by APSCC) 2007-01-30

Based on end effects of empirical mode decomposition (EMD) Hilbert-Huang Transform (HHT) in detecting ultra-wideband (UWB) signal, the non-equidistance grey model (NGM) is analyzed to mitigate EMD by predicting uncertainly data. Since some extreme points can hardly be detected particular situation, modified NGM(1,1)model using Fourier series (TFNGM(1,1)) at time domain proposed. Furthermore, new criterion terminate iteration process also proposed and this paper, which effectively improve...

10.1109/icedif.2015.7280186 article EN 2015-01-01

A novel approach named adaptive modified receiving template waveform (AMRTW) is proposed in this paper. This new uses frequency estimator to give the estimating values of interference and band. Based on these values, signal decomposed rationally by signal-analyzing unit. And UWB receiver modifies with removing some decomposing components that are close interfering spectrum from signal. The simulation results bit error rate performance show method efficient mitigation for pulse radio.

10.1109/wcnm.2005.1544050 article EN 2005-12-10

The event-related potential (ERP) is the brain response measured in electroencephalography (EEG), which reflects process of human cognitive activity. ERP has been introduced into computer interfaces (BCIs) to communicate with subject's intention. Due low signal-to-noise ratio EEG, most studies are based on grand-averaging over many trials. Recently single-trial detection attracts more attention, enables real time processing tasks as rapid face identification. All targets needed be retrieved...

10.3389/fncom.2017.00106 article EN cc-by Frontiers in Computational Neuroscience 2017-11-27

Computer vision (CV) has demonstrated its capabilities of face retrieval in rapidly exploring large image collections, but performance degrades uncontrolled condition. Human brain powerful cognitive ability to recognize faces across various conditions, which could complement computer retrieval. In this paper, we propose a closed-loop system by iterative coupling between EEG-based target labeling and CV based label propagation. The starts with sample the sent module. module ranks all images...

10.1109/ner.2015.7146577 article EN 2015-04-01

In this paper, a blind channel estimator, which is based on linear non-redundant precoding and second-order statistics, proposed for space time block (STBC) coded MIMO-OFDM systems. According to the complex orthogonal properties of STBCs, estimate with scalar ambiguity can be obtained through series simple transformation. Simulation results show that scheme track time-varying state well thus improve system performance when number statistical data properly chosen.

10.1109/wcnm.2005.1543979 article EN 2005-12-10

Stroke is one of the leading causes mortality and disability worldwide, with limited therapeutic approaches. As an endogenous strategy for neuroprotection, postconditioning treatments have proven to be promising therapies against cerebral ischemia. However, complicated procedures potential safety issues limit their clinical application. To overcome these disadvantages, we developed acidic (APC) as a therapy experimental focal APC refers mild acidosis treatment by inhaling CO2 during...

10.3791/55931-v article EN Journal of Visualized Experiments 2017-07-31

Software-defined networking (SDN) has recently been all the rage. It already successfully applied in many practical fields including campus network, wide area network (WAN) and data centre network. As a next step, SDN is expected to be adopted cellular networks deal with some most urgent problems faced by carriers, such as ever soaring capacity demands differentiated quality of service (QoS)/quality experience (QoE) requirements introduced emerging services large number exciting...

10.1504/ijcnds.2015.066019 article EN International Journal of Communication Networks and Distributed Systems 2014-12-01
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