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In the paper, we research on the application of TTEthernet in the launch vehicle control system. Firstly, the communication network requirements of next generation launch vehicle is proposed in this paper. Then, we introduce the TTEthernet in the view of the mechanism of network communication, clock synchronization and fault-tolerant performance. And further, we analyze the application advantages...
The current source inverter (CSI) has some application restrictions, especially for the power efficiency problem. The H7 current source inverter is a promising topology since it provides a shunt-connected switching path and significantly reduce the power dissipation. This paper reviews the already published H7 CSI configuration character with its modulation strategy in theory and proposes an optimal...
Load balancing is one major cause of the false traceroute link problem in Internet topology measurements. In this paper, the problem of false traceroute links in the presence of per-packet load balancing is illustrated and analyzed. The false traceroute links in the presence of symmetric and asymmetric per-packet load balancing are analyzed and formulized independently. According to our analysis,...
With the emerging of IoT (Internet of Things), the scale of Internet is extended extremely and large amounts of information are produced. Most previous work only focuses on the interconnection and interoperability problems among different entities and enterprise application systems in a dynamic interaction environment. However, the problems of how to efficiently disseminate the sensing information...
This paper proposes multi-mode transferred power amplifier design. Several discrete frequency points, along with their second and third harmonics are controlled simultaneously by a special output matching network in PA. It allows the PA to transfer its mode to different typical high efficiency classes in these deliberately selected frequencies, which are referred to LTE and 3G systems. The measurement...
Homogeneous manycore processors are emerging in broad application areas, including those with timing requirements, such as real-time and embedded applications. Typically, these processors employ Network-on-Chip (NoC) as the communication infrastructure and core-level redundancy is often used as an effective approach to improve the yield of manycore chips. For a given application's task graph and a...
Computation-intensive multimedia applications are emerging on mobile devices. System-on-Chip (SoC) offers high performance at a decreased size for these devices. SoC often integrates tens of cores and uses Network-on-Chip (NoC) as its communication infrastructure. To ensure high yield of manycore processors, core-level redundancy is often used as an effective approach to improve the reliability of...
There exists severe unfairness in the IEEE 802.11 DCF protocol based multi-hop wireless ad hoc networks. We propose a novel fairness enhancement algorithm FDCF based on the adaptive contention window adjustment technique, extensive simulation results show its effectiveness to improve the DCF fairness in wireless ad hoc networks.
The recent rapid development of industrial Ethernet requires addressing the topic of network design from a new perspective. The design of industrial Ethernet networks must typically consider real-time constraints and robustness against network failures. In this paper, the topology design of industrial Ethernet networks problem is firstly modelled considering the requirements of industrial applications...
Real-time Ethernet emerges as the primary supporting technology for the next generation of industrial communications. As real-time performance is critical in many industrial applications, how to evaluate it in industrial Ethernet becomes vitally important. In this paper a mathematical model using Network Calculus is presented to calculate the upper bound of end-to-end delay in hybrid networks.
Topology virtualization techniques are proposed for NoC-based many-core processors with core-level redundancy to isolate hardware changes caused by on-chip defective cores. Prior work focuses on homogeneous cores with symmetric performance and optimizes on-chip communication only. However, core-to-core performance asymmetry due to manufacturing process variations poses new challenges for constructing...
Urban infrastructure data constitutes an important part of urban geographic information. Relying on GIS technology and the urban infrastructure data, and giving consideration to the characteristics of the urban infrastructure, we can build a common data model, namely URIOCOM (Urban-Infrastructure-Oriented Common Model) to achieve accurate and efficient modeling and analysis of the urban infrastructure...
In order to avoid conventional topology's drawbacks, a new topology that the diode rectifier is replaced by the thyristor rectifier and the control strategy of the active voltage quality regulator with variable dc-bus voltage are proposed in this paper. This paper analyzes the circuit topology and control strategy in detail. Then losses and efficiency of the both circuit topologies are compared in...
The design and development of future ground-space integrated networks is one of the hot issues in space technology nowadays because of the long-link delay, high bit-error-rate, asymmetric bandwidth, intermittent links compare with the terrestrial networks. The focus of this paper is to design topology for this hybrid networks with space segments, select appropriate protocols for it and analyze its...
The active voltage quality regulator (AVQR) is an equipment designed to mitigate the long-term voltage disturbance, such as undervoltage, overvoltage and voltage harmonics etc. For the existing AVQR topology, the dc-bus voltage is either uncontrolled or controlled to a constant value, and it can not vary with the missing voltage variation. When the missing voltage is small, the corresponding and required...
Along with the booming of research and production of CMOS integrated bio-sensing system (IBS), ultra low current mode amplifier which serves for biosensor signal pre-amplification implemented in modern CMOS technology is in high demand in areas like ultra low bio-current analysis and detection, DNA probing and surveying systems and etc. In this paper, a novel current mode pre-amplifier (CMPA) module...
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