Results 151 to 160 of about 369 (198)
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Quantized Feedback Control Based on Spherical Polar Coordinate Quantizer
IEEE Transactions on Automatic Control, 2021Different from uniform quantizer and logarithmic quantizer, this paper proposes a novel quantizer for the design problems of linear systems with quantized feedback. This quantizer is based on spherical polar coordinates and has a desired relation between the quantized vector and the corresponding quantization error.
Jian Wang
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Optimal Input and Quantization Interval for Quantized Feedback System With Variable Quantizer
IEEE Transactions on Industrial Electronics, 2017Networked control systems (NCSs) have received much attention in the field of robot teleoperation, telesurgery, and other applications. In an NCS, it is important to compress data transmitted over a limited communication network while preserving the data required for control.
Tadanao Zanma, Kang-Zhi Liu
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Optimal dynamic quantizer and input in quantized feedback control system
IECON 2016 - 42nd Annual Conference of the IEEE Industrial Electronics Society, 2016In networked control systems, the data needs to be quantized for transmission over a limited bandwidth communication channel. We consider a dynamic quantizer in a quantized feedback control system. In this system, the quantizer parameters and input are optimized on-line by using the model predictive control to achieve the optimal control performance ...
Tadanao Zanma, Kang-Zhi Liu
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On the Optimality of Beamforming with Quantized Feedback
IEEE Transactions on Communications, 2007The ergodic capacity of a fading vector channel with multiple transmit antennas and a single receive antenna is explored. Perfect channel information is assumed to be available at the receiver while the transmitter has only partial knowledge of the direction of the user's channel vector based on quantized feedback.
Syed Ali Jafar, Sudhir Srinivasa
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Multiuser diversity with quantized feedback
IEEE Transactions on Wireless Communications, 2005In this paper, we propose an optimal discrete rate switch-based multiuser diversity system (DSMUDiv) that reduces the feedback load while preserving the essential of the scheme's performance in some cases. We examine the DSMUDiv scheme using two scheduling criteria depending on the distribution of the mobile users in the cell: (i) absolute signal-to ...
Yahya S. Al-Harthi +2 more
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Connections between quantized feedback control and quantized estimation
2008 10th International Conference on Control, Automation, Robotics and Vision, 2008Quantized feedback control and quantized estimation have attracted a lot of attention in recent years with many results available on both research topics. In this paper, we investigate connections between quantized feedback control and quantized estimation and try to establish a possible separation principle for quantized output feedback which would ...
Minyue Fu 0001 +2 more
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Optimal quantization feedback control with variable discrete quantizer
2014 IEEE 13th International Workshop on Advanced Motion Control (AMC), 2014Networked control systems (NCSs) have been receiving much attention in order to improve control performance in the field of in remote robot operation, surgery and some operations. In the NCSs, it is important to quantize necessary signals for control over a limited network channel for the sake of prevention from transmitting a large amount of data ...
Takumi Shiratori +2 more
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Quantized Feedback for Spatial Multiplexing System
2008 IEEE Wireless Communications and Networking Conference, 2008In this paper we present a quantized preceding scheme for the spatial multiplexing system equipped with MMSE-SIC receiver. The preceding matrix, consisting of a beamforming matrix and a power allocation matrix, is selected to maximize the minimum post-detection SINR of the MMSE-SIC receiver.
Qiubin Gao, Xian-Da Zhang, Jian Li 0053
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Energy control of a pendulum with quantized feedback
Automatica, 2016zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Ruslan E. Seifullaev +2 more
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