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In this paper, we propose a wireless battery charging system which the power transfer position can be automatically moved to the optimal charging placement. The proposed charging system is based on the electromagnetic inductive power transfer technique which is a short distance power transfer system. As a result, we have successfully finished the implementation of the proposed wireless battery charging...
This paper proposes an in-vehicle power line communication (PLC) system which provides an in-vehicle communication for the video and vehicle messages transmission as a reliable alternative networking medium. The proposed in-vehicle PLC system adopts an existing in-vehicle 12-V battery power system, which means we don't need an external DC power supply for in-vehicle communication equipment to achieve...
In this paper, a relay selection method based on the minimum opportunity cost (MOC) is proposed to prolong the lifetime of amplify-and-forward (AF) cooperative networks with multiple radio frequency energy-harvesting (RFEH) relays, where lifetime is defined as the longest period in which outage probability of the network is lower than a predefined threshold. Compared with existing relay selection...
With the increasing popularity of light emitting diodes (LEDs), visible light communication (VLC) systems provide an attractive alternative method for wireless communication. To reduce complexity and achieve lower cost, the on-off keying (OOK) modulation has been widely adopted in implementation of VLC systems. Although the conventional minimum-voltage detection circuit can remove the interference...
Controller Area Network (CAN) has become the most popular protocol for real-time control and automation systems due to its high reliability and low cost. However, CAN suffers from a limitation on the maximum length of a single bus arising from its specified bus topology. In order to solve this drawback indicated, a new internetworking device had been proposed to divide large-scale CAN networks into...
The activities of triggering by the arrival of time are one of features for the time-triggered automotive control systems. To motivate this property, this paper presents an efficient approach for modeling and analyzing of the automotive control system using FOCUS schemes. In case of modeling, the FOCUS is used to develop a formal framework and model the individual component within the FlexRay communication...
This work presents a novel peak-to-average power ratio (PAPR) reduction scheme, namely extended selected mapping (eSLM), in space-frequency block coding (SFBC) MIMO-OFDM systems. By introducing phase rotations and amplitude extensions into so-called extension matrices, the candidate signals with lowest PAPR can be selected and the receiver is able to identify index of the selected candidate without...
A Gaussian integer is a complex number whose real and imaginary parts are both integers. In addition, a sequence is defined to be perfect if and only if the out-of-phase value of the periodic autocorrelation function (PACF) equals zero. This paper commences by presenting a novel class of perfect sequences. The investigated perfect sequences are generated by two groups of base sequences with four base...
In this paper, a bandwidth efficient synchronization scheme for joint timing and frequency estimation is investigated for orthogonal frequency division multiplexing (OFDM) systems. The investigated architecture super-imposes a transparent generalized chirp-like (GCL) sequence [1] onto the frequency domain data symbols. In contrast to the existing synchronization schemes, the super-imposed architecture...
This paper presents an efficient approach for design and verification of the automotive control system using FlexRay communication protocol. The proposed architecture of verification components is established by the individual software component integration that can be applied to the verification of systems integrating different automotive control networks. Based on this methodology, a complete established...
This paper presents a novel frequency offset estimator for inter-carrier-interference (ICI) self-cancellation coded orthogonal frequency division multiplexing (OFDM) systems, which map data symbols onto adjacent or symmetric subcarriers with weighting coefficients of +1 and -1. There are two major drawbacks for traditional ICI self-cancellation schemes. First, the common phase error (CPE) caused by...
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