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Joint pushing and proactive caching holds the promise of significantly increasing the throughput and decreasing the latency of content-centric wireless networks. In this work, we import the pushing and caching mechanism into a traditional packet-oriented network for decreasing the average queueing delay. Since the decreasing relies on extra costs paid for the pushing-caching mechanism, such as the...
Since large array devices of MOSFETs are huge for driving capabilities, ESD self protections are also required. Then, the large drain-contact-to-poly-gate-spacing layout rule is usually adopted with large layout areas. In this paper, a new control circuit is implemented for adopting the minimum device layout rule in the LAD. Hence, it results in a very small layout area and ESD self-protection capabilities...
In this paper, we investigate the downlink of millimeter-wave multi-user massive MIMO systems, and propose a hybrid precoding scheme based on a sub-array architecture to achieve a better compromise between hardware cost and system performance. The proposed precoding scheme performs analog precoding and digital precoding at the transmitter with the generalized sub-array architecture. It implements...
Polar codes has a better bit error rate (BER) performance than low-density parity-check (LDPC) and turbo codes with lower coding and decoding complexity. The polar-coded cooperation can provide significant enhancement of data rate and link reliability. However, simply binary coded cooperation cannot meet the requirements of spectral efficiency. In order to improve the spectral efficiency, this paper...
Based on an induction heating power supply device developed by an electromechanical company in Qingdao, the research combines methods of fuzzy and traditional PID controller to improve system performance, saving energy and improving heating efficiency. By analysis of the inverter and resonant circuit principles, this paper presents a double-loop control strategy aim at reducing temperature overshoot...
In this article, the JE convolution-finite-difference time-domain (JEC-FDTD) method is applied to research the influence of the electromagnetic (EM) wave's scattering characteristics on the dusty plasma. The correlation properties of dusty plasma are analyzed by using radar cross section (RCS). This study provides some insights for the dusty plasma. Meanwhile, some valuable conclusions are achieved.
This paper presents a physical-aware diagnosis technique for failing dies with multiple interconnect defects, including open and bridging. Our diagnosis technique considers fault masking/reinforcement and Byzantine effects. We use a section, a piece of interconnect, as the physical-aware diagnosis unit. We adopt the Single Location in a Cluster (SLIC) technique, where sections with similar simulation...
Different from conventional multiphase switched-capacitor (SC) DC-DC converters, the proposed unsymmetrical parallel switched-capacitor (UP-SC) regulator provides more controllable input variables to increase available conversion ratios for improved load regulation. Even under higher conversion ratio numbers, the UP-SC regulator uses the fast searching optimum ratio (FSOR) technique to search the...
Generating photo-realistic images from multiple style sketches is one of challenging tasks in image synthesis with important applications such as facial composite for suspects. While machine learning techniques have been applied for solving this problem, the requirement of collecting sketch and face photo image pairs would limit the use of the learned model for rendering sketches of different styles...
Early power modeling and analysis using electronic system-level methodology enables designers to explore energy saving opportunities more efficiently at a higher abstraction level. However, power modeling for third party IPs are challenging due to the limited observability and unknown architecture details. To model the data dependency for blackbox IPs, several works rely on adopting Hamming distance...
Cross-resolution face recognition tackles the problem of matching face images with different resolutions. Although state-of-the-art convolutional neural network (CNN) based methods have reported promising performances on standard face recognition problems, such models cannot sufficiently describe images with resolution different from those seen during training, and thus cannot solve the above task...
An intelligent wireless sensor network based on ZigBee technology with cognitive function is designed in this study. Sensors collect sensed data, include spectral parameters of 2.4G channels. These data are transmitted to coordinator by RF modules. ARM processor in the coordinator receives data. It gets the information of the idle channel and controls the channel conversion after the operation of...
The authors present a straightforward and effective approach for minimizing insertion loss (IL) of varactor-based frequency-agile microstrip passive circuits, where varactors are employed as elements of variable reversal capacitances to attain reconfigurabiltiy/tunability on circuit characteristics. Technically, the proposed approach mimics the required capacitances using the varactors together with...
The research of traffic network becomes a hot field of traffic disciplines nowadays, to reveal the intrinsic evolution rule of traffic flow and congestion principle. In this paper, traffic flow theory and the fractal theory introduced, based on the complex network, combining with the cellular automaton, the complexity and nonlinear characteristics of traffic flow evolution are qualitatively and quantitatively...
Emerging trend in neuromorphic implementation moves towards large-scale neuron array that processes large amount of input data. It presents a grand challenge in communication between neurons due to large number of connections, or synapses, which can be in the order of millions, leading to large power consumption, processing time and many physical wires. In this work, we propose a communication protocol...
Ballistocardiography (BCG) is a non-invasive method for measuring the reaction force of the human body to the ejection of blood at each cardiac cycle. It is now being the subject of renewed research interest due to recent technological advancement in the field of sensors. In this paper, we summarize our work on BCG with optical fiber sensors for various applications in the past 6 years. These include...
Ballistocardiography (BCG) is a non-invasive method for measuring the reaction force of the human body to the ejection of blood at each cardiac cycle. It is now being the subject of renewed research interest due to recent technological advancement in the field of sensors. In this paper, we summarize our work on BCG with optical fiber sensors for various applications in the past 6 years. These include...
Characteristic of two cascaded Mach-Zehnder interferometers based on spherical-shape structures is investigated. When the light in the fiber core is excited into high-order cladding mode, part of the light can propagate along the fiber cladding for a long distance. By cascading two identical interferometers formed by dual spherical-shape structures, it proves that the high-order cladding modes are...
In all-optical wavelength converters based on highly nonlinear fiber (HNLF), the longer fibers always have lower Stimulated Brillouin Scattering (SBS) threshold power. In the paper, we proposed an all-optical wavelength converter with increasing SBS threshold by cascading two different HNLFs. We experimentally achieved −8-dB conversion efficiency and good converted signals with negligible power penalties.
As the expected emerging Non-Volatile Memory (NVM) technologies, such as 3DXPoint, are in production, there has been a recent push in the big data processing community from storage-centric towards memory-centric. Generally, in large-scale systems, distributed memory management through traditional network with TCP/IP protocol exposes performance bottleneck. Briefly, CPU- centric network involves context...
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