Institution
Beijing Information Science & Technology University
Education•Beijing, China•
About: Beijing Information Science & Technology University is a education organization based out in Beijing, China. It is known for research contribution in the topics: Computer science & Nonlinear system. The organization has 5134 authors who have published 4424 publications receiving 21822 citations.
Topics: Computer science, Nonlinear system, Fiber Bragg grating, Control theory, Fault (power engineering)
Papers published on a yearly basis
Papers
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TL;DR: This paper presents a comprehensive framework of IoV with emphasis on layered architecture, protocol stack, network model, challenges, and future aspects, and performs a qualitative comparison between IoV and VANETs.
Abstract: Internet of Things is smartly changing various existing research areas into new themes, including smart health, smart home, smart industry, and smart transport. Relying on the basis of “smart transport,” Internet of Vehicles (IoV) is evolving as a new theme of research and development from vehicular ad hoc networks (VANETs). This paper presents a comprehensive framework of IoV with emphasis on layered architecture, protocol stack, network model, challenges, and future aspects. Specifically, following the background on the evolution of VANETs and motivation on IoV an overview of IoV is presented as the heterogeneous vehicular networks. The IoV includes five types of vehicular communications, namely, vehicle-to-vehicle, vehicle-to-roadside, vehicle-to-infrastructure of cellular networks, vehicle-to-personal devices, and vehicle-to-sensors. A five layered architecture of IoV is proposed considering functionalities and representations of each layer. A protocol stack for the layered architecture is structured considering management, operational, and security planes. A network model of IoV is proposed based on the three network elements, including cloud, connection, and client. The benefits of the design and development of IoV are highlighted by performing a qualitative comparison between IoV and VANETs. Finally, the challenges ahead for realizing IoV are discussed and future aspects of IoV are envisioned.
435 citations
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TL;DR: The main aim of this paper is to identify blockchain- based solutions for addressing food traceability concerns, highlight the benefits and challenges of blockchain-based traceability systems implementation, and help researchers and practitioners to apply blockchain technology based food Traceability systems by proposing an architecture design framework and suitability application analysis flowchart.
334 citations
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TL;DR: In this article, the authors proposed and experimentally demonstrated an approach to generate vector vortex beams (VVBs) with a single metasurface by locally tailoring phase and transverse polarization distribution.
Abstract: Despite a plethora of applications ranging from quantum memories to high-resolution lithography, the current technologies to generate vector vortex beams (VVBs) suffer from less efficient energy use, poor resolution, low damage threshold, and bulky size, preventing further practical applications. We propose and experimentally demonstrate an approach to generate VVBs with a single metasurface by locally tailoring phase and transverse polarization distribution. This method features the spin–orbit coupling and the superposition of the converted part with an additional phase pickup and the residual part without a phase change. By maintaining the equal components for the converted part and the residual part, the cylindrically polarized vortex beams carrying orbital angular momentum are experimentally demonstrated based on a single metasurface at subwavelength scale. The proposed approach provides unprecedented freedom in engineering the properties of optical waves with high-efficiency light utilization and a m...
309 citations
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TL;DR: The effectiveness of this model has been proved by the final simulation which shows that the proposed model outperforms the SVR model with default parameters, back propagation artificial neural network (BPNN) and regression forecasting models in the annual load forecasting.
223 citations
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TL;DR: Stochastic optimization techniques are applied to transform the original stochastic problem into a deterministic optimization problem, and an energy efficient dynamic offloading algorithm called EEDOA is proposed, which can approximate the minimal transmission energy consumption while still bounding the queue length.
Abstract: With proliferation of computation-intensive Internet of Things (IoT) applications, the limited capacity of end devices can deteriorate service performance. To address this issue, computation tasks can be offloaded to the Mobile Edge Computing (MEC) for processing. However, it consumes considerable energy to transmit and process these tasks. In this paper, we study the energy efficient task offloading in MEC. Specifically, we formulate it as a stochastic optimization problem, with the objective of minimizing the energy consumption of task offloading while guaranteeing the average queue length. Solving this offloading optimization problem faces many technical challenges due to the uncertainty and dynamics of wireless channel state and task arrival process, and the large scale of solution space. To tackle these challenges, we apply stochastic optimization techniques to transform the original stochastic problem into a deterministic optimization problem, and propose an energy efficient dynamic offloading algorithm called EEDOA. EEDOA can be implemented in an online manner to make the task offloading decisions with polynomial time complexity. Theoretical analysis is provided to demonstrate that EEDOA can approximate the minimal transmission energy consumption while still bounding the queue length. Experiment results are presented which show the EEDOA’s effectiveness.
200 citations
Authors
Showing all 5173 results
Name | H-index | Papers | Citations |
---|---|---|---|
Chao Wang | 91 | 561 | 32854 |
Yong-Wang Li | 71 | 496 | 17668 |
Lin Zhang | 47 | 608 | 10574 |
Xiaodong Wen | 44 | 283 | 9004 |
Wei Xiang | 38 | 394 | 6915 |
Guoqing Hu | 38 | 154 | 4366 |
Yuting Wu | 28 | 159 | 2564 |
Guang Zhu | 28 | 120 | 17573 |
Lianxiang Yang | 26 | 180 | 2083 |
Deng-Shan Wang | 26 | 81 | 2320 |
Ali Reza Kamali | 24 | 114 | 1825 |
Xiaolong Yang | 24 | 279 | 2270 |
Hongguang Zhang | 23 | 81 | 1667 |
Zhongwei Zhi | 22 | 41 | 1286 |
Zetian Fu | 21 | 116 | 1870 |