The Experts below are selected from a list of 23403 Experts worldwide ranked by ideXlab platform
Shuang-hua Yang - One of the best experts on this subject based on the ideXlab platform.
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Design of a networked control system with random Transmission Delay and uncertain process parameters
International Journal of Systems Science, 2008Co-Authors: Ye Yang, Yongji Wang, Shuang-hua YangAbstract:This article discusses the compensation of the Transmission Delay in a networked control system (NCS) with a state feedback, which possesses a randomly varying Transmission Delay and uncertain process parameters. The compensation is implemented by using a buffer in the actuator node and a state estimator in the controller node. A Linear Matrix Inequality-based sufficient condition for the stability of the NCS under the designed compensation is proposed. The simulation results illustrate the efficiency of the compensation method.
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A NETWORKED CONTROL SYSTEM WITH STOCHASTICALLY VARYING Transmission Delay AND UNCERTAIN PROCESS PARAMETERS
IFAC Proceedings Volumes, 2005Co-Authors: Ye Yang, Yongji Wang, Shuang-hua YangAbstract:Abstract This paper discusses the compensation of the Transmission Delay in a networked state feedback control system (NCS), which possess a randomly varying Transmission Delay and uncertain process parameters. The compensation is implemented by using a buffer in the actuator node and a state estimator in the controller node. A Linear Matrix Inequality (LMI) based sufficient condition for the stability of the NCS under the designed compensation is proposed. The simulation results illustrate the efficiency of our compensation method.
Jae-hyun Kim - One of the best experts on this subject based on the ideXlab platform.
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MILCOM - An active buffer management based on the virtual Transmission Delay for video streaming service
2011 - MILCOM 2011 Military Communications Conference, 2011Co-Authors: Kyu-hwan Lee, Hyun-jin Lee, Jae-hyun KimAbstract:We propose an active buffer management scheme to guarantee quality of service (QoS) for video streaming services in wireless local area network (WLAN). The proposed scheme uses the concept of virtual Transmission Delay and differentiates the frame drop policy according to the type of video frame. The virtual Transmission Delay is defined as the Delay until the video frame is potentially transmitted since a frame is arrived at the buffer. By the simulation result, the frame Transmission Delay does not exceed the Delay bound when the proposed scheme is used. As a result, the number of frames of degraded peak signal to noise ratio (PSNR) is reduced about 50% compared to the case that the conventional Enhanced Distributed Channel Access (EDCA) is used. The proposed protocol also outperforms the EDCA in the actually visual quality of video streaming.
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CCNC - The Active Buffer Management Scheme using Virtual Transmission Delay in the IEEE 802.11e Network
2010 7th IEEE Consumer Communications and Networking Conference, 2010Co-Authors: Kyu-hwan Lee, Hyun-jin Lee, Jae-hyun KimAbstract:Due to the advance of WLAN technology, the use of the multimedia service such as the video streaming service has been increased in the home network or CCTV monitoring for cars or construction materials. However, we need to study the method which decreases the Transmission Delay and the frame loss rate to provide QoS of the video streaming service. Therefore, this paper proposes an active buffer management scheme to guarantee QoS of the video streaming service in the IEEE 802.11e EDCA. The proposed scheme discards the frame in the HoL(Head of Line) of the buffer based on the priority of each frame and the virtual Transmission Delay of frame newly arriving at the buffer. In the simulation results, the proposed scheme not only decreases the frame loss probability of important I and P frames but also stabilizes the Transmission Delay. It may increase the QoS of video streaming services.
Ye Yang - One of the best experts on this subject based on the ideXlab platform.
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Design of a networked control system with random Transmission Delay and uncertain process parameters
International Journal of Systems Science, 2008Co-Authors: Ye Yang, Yongji Wang, Shuang-hua YangAbstract:This article discusses the compensation of the Transmission Delay in a networked control system (NCS) with a state feedback, which possesses a randomly varying Transmission Delay and uncertain process parameters. The compensation is implemented by using a buffer in the actuator node and a state estimator in the controller node. A Linear Matrix Inequality-based sufficient condition for the stability of the NCS under the designed compensation is proposed. The simulation results illustrate the efficiency of the compensation method.
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A NETWORKED CONTROL SYSTEM WITH STOCHASTICALLY VARYING Transmission Delay AND UNCERTAIN PROCESS PARAMETERS
IFAC Proceedings Volumes, 2005Co-Authors: Ye Yang, Yongji Wang, Shuang-hua YangAbstract:Abstract This paper discusses the compensation of the Transmission Delay in a networked state feedback control system (NCS), which possess a randomly varying Transmission Delay and uncertain process parameters. The compensation is implemented by using a buffer in the actuator node and a state estimator in the controller node. A Linear Matrix Inequality (LMI) based sufficient condition for the stability of the NCS under the designed compensation is proposed. The simulation results illustrate the efficiency of our compensation method.
Sanjay K Bose - One of the best experts on this subject based on the ideXlab platform.
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a joint routing and mac protocol for Transmission Delay reduction in many to one communication paradigm for wireless sensor networks
IEEE Internet of Things Journal, 2017Co-Authors: Ripudaman Singh, Sanjay K BoseAbstract:We propose a joint routing and medium access control (MAC) protocol, named as JRAM, for reducing Transmission Delays in a many-to-one communication paradigm for wireless sensor networks (WSNs). Due to the wide variety of WSN applications, there is a need for protocol solutions optimized for specific application classes. JRAM is proposed for WSNs deployed for monitoring multiple events in the same geographic region which require prompt detection and response. In existing contention-based synchronous MAC protocols designed for this, a node gets only one chance to succeed in data Transmission scheduling per cycle, and a sink can also only receive data packets from at most one node in a cycle. Therefore, end-to-end Transmission Delay (E2ETD) and packet delivery ratio (PDR) of these protocols drastically degrade with the increase in event occurrence rate (EOR). In contrast, JRAM proposes a novel approach to provide $ {k}~ {(k >1)}$ chances to a node to succeed in data Transmission scheduling in a cycle, and also allows a sink to receive data packets from ${k}$ nodes in the same cycle. This is done, in JRAM, by partitioning the network nodes into $ {k}$ disjoint sets and then using a novel cycle structure. We evaluate JRAM through extensive NS-2.35 simulations and compare its performance with existing pipelined data collection (PDC), adaptive data collection (ADC), and CROPMAC protocols, for different types of traffic loads and traffic patterns. Results suggest that in case of high EOR, JRAM outperforms PDC, ADC and CROPMAC both in terms of the E2ETD and the PDR.
Yongji Wang - One of the best experts on this subject based on the ideXlab platform.
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Design of a networked control system with random Transmission Delay and uncertain process parameters
International Journal of Systems Science, 2008Co-Authors: Ye Yang, Yongji Wang, Shuang-hua YangAbstract:This article discusses the compensation of the Transmission Delay in a networked control system (NCS) with a state feedback, which possesses a randomly varying Transmission Delay and uncertain process parameters. The compensation is implemented by using a buffer in the actuator node and a state estimator in the controller node. A Linear Matrix Inequality-based sufficient condition for the stability of the NCS under the designed compensation is proposed. The simulation results illustrate the efficiency of the compensation method.
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A NETWORKED CONTROL SYSTEM WITH STOCHASTICALLY VARYING Transmission Delay AND UNCERTAIN PROCESS PARAMETERS
IFAC Proceedings Volumes, 2005Co-Authors: Ye Yang, Yongji Wang, Shuang-hua YangAbstract:Abstract This paper discusses the compensation of the Transmission Delay in a networked state feedback control system (NCS), which possess a randomly varying Transmission Delay and uncertain process parameters. The compensation is implemented by using a buffer in the actuator node and a state estimator in the controller node. A Linear Matrix Inequality (LMI) based sufficient condition for the stability of the NCS under the designed compensation is proposed. The simulation results illustrate the efficiency of our compensation method.
