Wireless Sensor Network (WSN) is a network system which is composed by a large number of miniature and low-cost intelligent sensor nodes deployed in monitoring area by using wireless communication channel through multi-hop self-organizing mode.The hardware structure of the sensor nodes is simple and has finite energy. Because the sensor nodes are usually deployed in
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In recent years, with the in-depth research of related technologies and the improvement in hardware, there are more and more deployed wireless sensor networks in practice and show its potential. WSN has been applied in a lot of fields such as environment detecting, medical treatment guarding, traffic management and military affairs reconnaissance. In the applications
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High dependability design is the key issue of modern spacecraft control system. Fault-tolerant technolory is the main aspect of dependability design.There are intrinsic limitations for traditional fault-tolerant methods such as TMR(Triple Modular Redundancy).It occupies considerable resources, while its fault-tolerant capability is limited. The powerful self-adaptive ability of biological organisms brings inspiration to designing fault-tolerant method.
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As semiconductor process technology scales, the new approach of network on chip (NoC) develops fast. At the same time, it also brings tremendous challenges to NoC design, mainly affected by the manufacturing process for the NoC system, signal noise and crosstalk, electromagnetic interference, electron mobility and other factors, which result in more and more permanent
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With the development of integrated circuits technology, more and more resources are available on chip. Multi-core architecture design has become the main trend. However, the shrinking geometry makes the wire delay more than the gate delay. So the communication among the cores becomes a bottleneck to improve the performance. Network on Chip was introduced to
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Robotic systems are profoundly nonlinear coupled with uncertainties. Such multi-input multi-output systems, if considering measurement error, unmodelled dynamics, external disturbances, or even actuator failures, become rather complex. As modeling uncertainties and actuation failures are inevitable in practice, it is therefore is theoretical and practical significance to investigate the trajectory tracking control problem of robots considering
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Robotic systems are profoundly nonlinear coupled with uncertainties. Such multi-input multi-output systems, if considering measurement error, unmodelled dynamics, external disturbances, or even actuator failures, become rather complex. As modeling uncertainties and actuation failures are inevitable in practice, it is therefore is theoretical and practical significance to investigate the trajectory tracking control problem of robots considering
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As radio resource is becoming increasingly scarce, people more and more realize the contradiction between the allocation and the usage of the spectrum. The appearance of Cognitive Radio will provide effective solution to the problem of spectrum shortage. Cognitive Radio as a revolutionary intelligence technology is becoming a hot research topic in wireless communication field.The
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Grid computing is a new branch of distributing computing, whose objective is to integrate the resources that are geographically dispersed and maybe belong to different organizations. What the grid computing could provide is a high performance, high transparence and high reliability unified computing environment. Since the characteristics of highly distributive, heterogeneous and dynamic of resources,
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Recent advances in wireless communications, electronics and Micro Electro Mechanical System (MEMS) have enabled the development of low-cost, low-power, multifunctional sensor nodes, which are small in size and communicate in short distances. Wireless sensor networks are envisioned to consist of thousands of devices, operating in an unattended mode, and characterized by severe energy constraints. The
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