Robust beamforming design for multiple-input–single-output secrecy multicasting systems with simultaneous wireless information and power transmission

2016 ◽  
Vol 10 (15) ◽  
pp. 1979-1985 ◽  
Author(s):  
Zhengyu Zhu ◽  
Zheng Chu ◽  
Zhongyong Wang ◽  
Jianhua Cui
Keyword(s):  
Power Transmission ◽  
Robust Beamforming ◽  
Single Output ◽  
Multiple Input

scholarly journals Investigation of Mechanical Differentials as Continuously Variable Transmissions

2011 ◽  
Author(s):  
Dax B. Wells ◽  
Benjamin C. Groen ◽  
Robert H. Todd
Keyword(s):  
Hybrid Electric Vehicle ◽  
Power Transmission ◽  
Power Sources ◽  
Single Output ◽  
Multiple Input ◽  
Continuously Variable Transmissions ◽  
Power Inputs ◽  
Variable Transmission ◽  
Reduce Emissions ◽  
Increasing Demand

In recent years the increasing demand for fuel efficient and less pollutant vehicles has stimulated the development of hybrid and electric vehicles. These vehicle platforms often incorporate drivetrains which utilize multiple power sources for vehicle propulsion to increase fuel mileage and reduce emissions. Understanding the torque and RPM relationship within the power transmission device used to combine power sources is fundamental to overcoming the design challenges associated with hybrid/electric vehicle platforms. Results from this research include the fundamental torque and RPM relationships that exist in a multiple-input, single-output power transmission device. Results were deduced from a test incorporating two separate power inputs into a mechanical differential, which produced a single output. Testing showed that a mechanical differential has the ability to function as an infinitely variable transmission (IVT). Additionally, recommendations for overcoming some of the challenges associated with using a mechanical differential as a multiple-input, single-output device were identified.

Multiple-Input Single-Output Wireless Power Transmission System for Coal Mine Application

2013 ◽  
Vol 462-463 ◽  
pp. 900-904 ◽  
Author(s):  
Duan Zhao ◽  
En Jie Ding ◽  
Hui Xue
Keyword(s):  
Coal Mine ◽  
Power Transmission ◽  
Homogeneous Distribution ◽  
Axial Component ◽  
Wireless Power ◽  
Wireless Power Transmission ◽  
Single Output ◽  
Multiple Input ◽  
Input Coil ◽  
Simulation Results

The magnetic multiple input algorithms of Wireless Power Transmission (WPT) system as well as many multiple overlapping coils structures in the transmitter side are proposed for the coal mine Internet of the Things (IOT) nodes. Different phase shifts cases for the input signal are considered to study their effect on the efficiency. Simulation results showed that the axial component of magnetic induction resulted from the multiple overlapping coils structure has preferable homogeneous distribution over the traditional single input coil. The proposed system achieved an efficiency value of 60 % for a receiver placed 40 cm away from a 4 coils transmitter comparing to an efficiency value of 50% for the same distance using a single coil transmitter. Simulation results shows that the proposed model is well adapted for the movable charging mode for the IOT nodes in coal mine.

Estimation Design Using Youla Parametrization With Automotive Applications

2018 ◽  
Vol 140 (8) ◽  
Author(s):  
Francis Assadian ◽  
Alex K. Beckerman ◽  
Jose Velazquez Alcantar
Keyword(s):  
Kalman Filtering ◽  
Feedback Stabilization ◽  
Estimation Technique ◽  
Single Input Single Output ◽  
Normal Forces ◽  
Single Output ◽  
Multiple Input ◽  
Single Input ◽  
Established Technique ◽  
Better Than

Youla parametrization is a well-established technique in deriving single-input single-output (SISO) and, to a lesser extent, multiple-input multiple-ouput (MIMO) controllers (Youla, D., Bongiorno, J. J., Jr., and Lu, C., 1974, “Singleloop Feedback-Stabilization of Linear Multivariable Dynamical Plants,” Automatica, 10(2), pp. 159–173). However, the utility of this methodology in estimation design, specifically in the framework of controller output observer (COO) (Ozkan, B., Margolis, D., and Pengov, M., 2008, “The Controller Output Observer: Estimation of Vehicle Tire Cornering and Normal Forces,” ASME J. Dyn. Syst., Meas., Control, 130(6), p. 061002), is not established. The fundamental question to be answered is as follows: is it possible to design a deterministic estimation technique using Youla paramertization with the same robust performance, or better, than well-established stochastic estimation techniques such as Kalman filtering? To prove this point, at this stage, a comparative analysis between Youla parametrization in estimation and Kalman filtering is performed through simulations only. In this paper, we provide an overview of Youla parametrization for both control and estimation design. We develop a deterministic SISO and MIMO Youla estimation technique in the framework of COO, and we investigate the utility of this method for two applications in the automotive domain.

Robust secrecy rate optimisations for multiuser multiple-input-single-output channel with device-to-device communications

2015 ◽  
Vol 9 (3) ◽  
pp. 396-403 ◽  
Author(s):  
Zheng Chu ◽  
Kanapathippillai Cumanan ◽  
Zhiguo Ding ◽  
Mai Xu
Keyword(s):  
Output Channel ◽  
Secrecy Rate ◽  
Single Output ◽  
Multiple Input ◽  
Device To Device
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