Yi ZhangXiamen University | XMU · Department of Information and Communication Engineering
Yi Zhang
Ph.D. in Communication Engineering
Assistant Professor of Xiamen University
About
27
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Introduction
Publications
Publications (27)
With the rapid development of deep learning technology, the modern internet-of-things (IoT) cameras have very high demands on communication, computing, and memory resources so as to achieve low latency and high accuracy live video analytics. Thanks to mobile edge computing (MEC), intelligent offloading to the MEC nodes can bring a lot of benefits,...
Vehicular fog computing (VFC) is a promising approach to provide ultra-low-latency service to vehicles and end users by extending the fog computing to conventional vehicular networks. Parked vehicle assistance (PVA), as a critical technique in VFC, can be integrated with smart parking in order to exploit its full potentials. In this paper, we propo...
A novel fiber optic sensor is designed with mesh microbenders for simultaneous perioperative measurement of heart rate (HR) and respiratory rate (RR) for infants. The feasibility of the mesh microbend fiber sensor was evaluated in 10 infants, ranging from 1 to 12 months in a prospective cross-sectional observational study with the sensor placed und...
With the large expected demand of wireless communication, Device-to-Device (D2D) communication has been proposed as a promising technology to enhance network performance. Nevertheless, the selfish nature of potential D2D users may impale the performance of D2D-enabled network. In this paper, we propose a D2D-enabled cellular network framework, whic...
Biometric-based human identification has been investigated and applied in daily life applications, but some of them meet fundamental limitations, e.g., highly sensitive to the ambient light of the image-based recognition and unable to detect wrinkle finger with the fingerprint identification, and therefore decrease the user experience. Recently, el...
Monitoring vital signs is a key part of standard medical care for cancer patients. However, the traditional methods have instability especially when big fluctuations of signals happen, while the deep-learning-based methods lack pertinence to the sensors. A dual-path micro-bend optical fiber sensor and a targeted model based on the Divided-Frequency...
Visible light communication (VLC) is an emerging wireless technology to support high transmission rate for indoor devices by using existing lighting infrastructure, and VLC-based indoor localization is capable of providing high-accuracy localization. However, current VLC-based localization systems suffer from several key challenges such as sensitiv...
With the development of telecommunication technologies and the proliferation of network applications in the past decades, the traditional cloud network architecture becomes unable to accommodate such demands due to the heavy burden on the backhaul links and long latency. Therefore, edge computing, which brings network functions close to end-users b...
Mounting reconfigurable intelligent surface (RIS) on unmanned aerial vehicle (UAV), called UAV-RIS, combines the benefits of these two techniques, which can further improve the communication performance. However, high-quality air-ground channel links are more vulnerable to both the adversarial eavesdropping and the malicious jamming. Therefore, thi...
Active eavesdropper sends jamming signals to raise the transmit power of base stations and steal more information from cellular systems. Network coding resists the active eavesdroppers that cannot obtain all the data flows, but highly relies on the wiretap channel states that are rarely known in wireless networks. In this paper, we present a reinfo...
Maritime communications with sea surface reflections and sea wave occlusions are susceptible to jamming attacks due to the wide geographical area and intensive wireless communication services. Unmanned Aerial Vehicles (UAVs) help relay messages to improve communication performance, but the relay policy that depends on the rapidly changing maritime...
A novel dual-path microbend fiber optic sensor is designed for noninvasive measurement of respiratory rate (RR) and heart rate (HR) for cancer patients. The performance of the microbend fiber sensor is assessed in two groups of cancer patients, cancer patients with pain and without pain, ranging from eighteen to ninety-six years old in a daily obse...
Collaborative inference in mobile edge computing (MEC) enables mobile devices to offload the computation tasks for the computation-intensive perception services, and the inference policy determines the inference latency and energy consumption. The optimal inference policy depends on the inference performance model of deep learning, the data generat...
The industrial Internet of Things (IIoT) has been widely deployed to provide autonomous inspection on current production status and quality of products for modern manufacturing. However, the IIoT sensors generally are short of computing capabilities and therefore could not offer acceptable latency for computation-intensive inspection tasks. Besides...
Unmanned aerial vehicle (UAV) network is vulnerable to jamming attacks, which may cause severe damage like communication outages. Due to the energy constraint, the source UAV cannot blindly enlarge the transmit power, along with the complex network topology with high mobility, which makes the destination UAV unable to evade the jammer by flying at...
A novel optical fiber sensor using a mesh microbend optical fiber sensor to measure the perioperative heart rate (HR) and respiratory rate (RR) frequency signals was developed by our team. The feasibility of the sensor was evaluated in 10 infants in the perioperative period. We used traditional algorithms, such as Fast Fourier Transformation (FFT)...
Electrical-based vital signs monitoring, especially the electrocardiogram (ECG) technique, has been investigated and applied in daily life. But this technique meets the limitations, e.g., the direct skin-contact, body hair shaving, the discomfort and inconvenience of the test subject. Recently, optical-based vital signs monitoring has been demonstr...
An optical-fiber sensor based on a Mach–Zehnder interferometer is proposed and experimentally demonstrated for relative humidity (RH) measurement in the water absorption band at 2 µm. The sensor head is formed by a dual biconical fiber coated with agarose gel. Both the simulation and experimental results show that the proposed sensor is more sensit...
We proposed an agarose coated macro-bend fiber (AC-MBF) sensor for relative humidity and temperature measurement at 2 μm. Stronger resonance dips in the bent fiber sensor can be found at 2 μm region, which is at the peak of water absorption better for humidity sensing. Experimentally, such an AC-MBF sensor was very sensitive to humidity at 2 μm reg...
We present a real-time indoor visible light positioning system based on optical camera communication, where the coordinate data in the on and off keying format is transmitted via light emitting diode (LED) based lights and captured using a smartphone camera. The position of camera is determined using a novel Perspective-n-Point problem algorithm, w...
A new sensing method for measurement of relative humidity was proposed. It is based on wavelength-modulated method at the wavelength range of 2μm, which is at the peak of water absorption better for humidity sensing.