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A prediction scheme for Ethernet traffic data using a Multiscale-Bilinear Recurrent Neural Network with Adaptive Learning (M-BRNN-AL) is proposed and presented in this paper. The proposed predictor integrates an M-BRNN and an AL algorithm. In M-BRNN, the wavelet transform is employed to decompose the original traffic signals into several simple traffic signals. A BRNN is then used to predict each decomposed traffic signal. An AL algorithm is also applied in order to improve the learning process at each resolution level in M-BRNN-AL. Experiments and results on a set of Ethernet network traffic predictions show that the proposed scheme converges faster and archives better prediction performance than the other conventional models such as the Multi-layer Perception Type Neural Network, BRNN, and the original M-BRNN in terms of the normalized mean square error.

The increasing complexity of automotive electronics and the communication of cars with the external environment have led to extensive security issues. The car industry is moving towards the use of Ethernet backbones to improve the performance and reduce the complexity of in-car networks. In this paper, we propose a security solution for automotive Ethernet-based communications. We designed a hardware Media Access Control (MAC) layer based on the MAC Security Standard (MACsec) that considers the specific constraints of the automotive world in terms of latency, throughput and area. From a security point of view, our solution guarantees the confidentiality, integrity and authenticity of data. Furthermore, the system can be configured before synthesis to meet the security needs of the context in which the Ethernet communication is used. We synthesized our architecture on a low-power 28nm standard-cell CMOS technology, which is appropriate for automotive microcontrollers. The results show that our implementation is suitable for 100Mbps, 1Gbps and 10Gbps Ethernet speeds introducing less than 350ns of latency. The size of the circuit varies from 285 to 622 kgates depending on the required level of security and the required features.

Today’s vehicles have become increasingly complex, as consumers demand more features and better quality in their cars. Most of these new features require additional electronic control units (ECU) and software control, constantly pushing back the limits of existing architectures and design methodologies. Indeed, modern automobiles have a larger number of critical time functions distributed and running simultaneously on each ECU. Data Distribution Service (DDS) is a publish/subscribe middleware specified by the international consortium Object Management Group (OMG), which makes the information available in real time, while offering a rich range of quality of service (QoS) policies. In this paper, we propose a new methodology to integrate DDS in automotive application. We evaluate the performance of our new design by testing the fulfillment of real time QoS requirements. We also compare the performance of the vehicle application when using FlexRay and Ethernet networks. Computations prove that the use of DDS over Gigabit Ethernet (GBE) is promising in the automotive field.

This paper presents a protocol to support hard real-time traffic of end-to-end communication over non real-time LAN technology. The network is set up with nodes and switches, and real-time communication is handled by software (protocol) added between the Ethernet protocols and the TCP/IP suite. The proposed protocol establishes a virtual circuit based on admission control and manages hard real-time traffic to bypass the TCP/IP stack. This makes considerably reduce the dwell time in the nodes, and increase the achievable data frame rate. After the bypassing, traffic schedule is performed according to dynamic-priority EDF algorithm. The work does not need any modifications in the Ethernet hardware and coexists with TCP/IP suites, and then the LAN with the protocol can be connected to any existing Ethernet networks. It can be adopted in industrial hard real-time applications such as embedded systems, distributed control systems, parallel signal processing and robotics. We have performed some experiments to evaluate the protocol. Compared to some conventional hard real-time network protocols, the proposed one has better real-time performances and meets the requirements of reliability for hard real-time systems.

Technological advances such as high speed Ethernet and ATM have provided a means for business organizations to employ high performance networking. However, few studies have been conducted to verify the architecture's typical performance in a business environment. This study analyzed the network performance of high speed Ethernet and ATM when they were configured as LAN backbones. The results revealed that ATM exhibited performance superior to high speed Ethernet, but when adjustments were made for differences in line speed, the throughput was similar. In addition to analyzing empirical data about each technologies' performance, the advantages and limitations of using ATM in a business network are discussed.

This paper presents a new kind of Real-time Control Protocol to solve the problem of nondeterministic network traffics on Ethernet, expatiate to the basic theory of the protocol, prove that this protocol can help the Ethernet implement transmit real-time data by experiment and implement the protocol Stack in RTLinux OS

‘Ethernet over WDM’ is very promising as a next-generation network technology. After some prospective Ethernet-based services are introduced, a novel WDM-based wide-area access network, combined with a regional transport network, is introduced. This network enables the efficient deployment of such services. We show a detailed system configuration of the network and OAM information channels that are effective for it. We then present its management information model in reference to the architectural transport model. This model will be useful in building network management systems.

Based on the standard of EPON and the research results, this paper introduces the mechanism of multi-point control protocol and compares the Statistical bandwidth allocation (SBA) and Dynamic bandwidth allocation (DBA), according these, this paper proposes a new scheduling algorithm to support the quality of services (QoS) in EPON. Here, static bandwidth allocation for guaranteed bandwidth service and dynamic bandwidth allocation for on-demand, dynamic traffic services.

This paper studied an integrated protection device for the coal mining motor to monitor and protect the motor in real time when it experiences malfunction in cases such as overload, unbalanced current, blockage and starting timeout. The device utilizes the Cortex-M7, a core of the KV5x series chip, to ensure sampling efficiency and smooth operation speed. Due to the design and integration of hardware and software components, this device has high efficiency and stability, and strong anti-jamming ability. The experimental results demonstrate that the system has improved precision and stability.