New network applications requiring broadband transfer, such as broadcasting services, are emerging and quality requirements for networks are becoming more diversified. Considering that these applications usually gener...
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ISBN:
(纸本)9784885522260
New network applications requiring broadband transfer, such as broadcasting services, are emerging and quality requirements for networks are becoming more diversified. Considering that these applications usually generate time-varying traffic in the network, which has limited link bandwidth, dynamic traffic engineering (TE) will be helpful to realize a more robust network. However, a route change performed by a TE can involve all traffic. This can degrade the quality of packet transfer. Moreover, it may not realize cost-minimum paths, which may be the best paths from the viewpoint of the QoS. Here, we propose a partial traffic engineering scheme. This scheme allows the TE to set paths that coexist with the cost-minimum paths, which can be used to support QoS sensitive traffic. Furthermore, the traffic whose paths are permitted to be reconfigured dynamically can be limited. We show a formulation based on LP (linear programming ) for this scheme and simulation results that confirms its effectiveness.
An ATCA-based computation platform for data acquisition and trigger applications in nuclear and particle physics experiments has been developed. Each compute node (CN) which appears as a field replaceable unit (FRU) i...
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ISBN:
(纸本)9781424419606
An ATCA-based computation platform for data acquisition and trigger applications in nuclear and particle physics experiments has been developed. Each compute node (CN) which appears as a field replaceable unit (FRU) in an ATCA shelf, features 5 Xilinx Virtex-4 FX60 FPGAs and up to 10 GBytes DDR2 memory. Connectivity is provided with 8 optical links and 5 Gigabit Ethernet ports, which are mounted on each board to receive data from detectors and forward results to outer shelves or PC farms with attached mass storage. Fast point-to-point on-board interconnections between FPGAs as well as the full-mesh shelf backplane provide flexibility and high bandwidth to partition algorithms and correlate results among them. The system represents a highly reconfigurable and scalable solution for multiple applications.
This paper addresses a necessary and sufficient robust stability condition of fractional-order interval linear time invariant systems. The state matrix A is considered as a parametric interval uncertain matrix and fra...
This paper addresses a necessary and sufficient robust stability condition of fractional-order interval linear time invariant systems. The state matrix A is considered as a parametric interval uncertain matrix and fractional commensurate order is considered belonging to 1 ≤ α < 2. Using the existence condition of Hermitian matrix P = P * for a complex Lyapunov inequality, we show that a fractional-order interval linear system is robust stable if and only if there exist Hermitian matrices P = P * such that complex Lyapunov inequalities are satisfied for all vertex matrices, which is a set of selected matrices. Two numerical examples are presented to verify the validity of the proposed approach.
This paper proposes a generic design for 3D model retrieval. It has been developed in cooperation with EADS, which deals with computer Aided Design / computer Aided engineering (below CAD/CAE) data through the product...
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This paper proposes a generic design for 3D model retrieval. It has been developed in cooperation with EADS, which deals with computer Aided Design / computer Aided engineering (below CAD/CAE) data through the product life cycle. Sharing these models with users across the enterprise is a challenging task. CAD/CAE models may be hundreds of megabytes large and stored in proprietary formats. Browsing and previewing this data efficiently requires new tools. One way to leverage the collaboration in and outside of CAD domains is to offer through a repository an access to a neutral 3D data format. Also functionalities for semantic enrichment of 3D models, for the retrieval of context sensitive information and for 3D model retrieval based on 3D similarity search and CBIR techniques should be provided.
In networked control systems (NCS), it is considered essential to design a robust controller such that the networked-system is stable against data dropouts during the network transfer. It has been shown that there is ...
In networked control systems (NCS), it is considered essential to design a robust controller such that the networked-system is stable against data dropouts during the network transfer. It has been shown that there is a critical data dropout rate over which the networked-system could be unstable; hence the desired task cannot be achieved. This paper shows that a desired task or trajectories can be still achieved even though there are feedback signal dropouts if the desired task is repetitive, as in the iterative learning control case. Specifically this paper shows how to design stochastic iterative learning control systems such that the networked-system with a repetitive task is robust stable against measurement and process noises and independent, intermittent output channel dropouts.
Inherent connections are known to exist between common randomness generated by multiterminal source coding and channel coding on the one hand, and information theoretic secrecy generation by means of public communicat...
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ISBN:
(纸本)9781424429257
Inherent connections are known to exist between common randomness generated by multiterminal source coding and channel coding on the one hand, and information theoretic secrecy generation by means of public communication on the other hand. Based on these connections, points of contact have been found recently also between secrecy generation for a special model for the latter and the combinatorial problem of tree packing in a multigraph. This paper provides a brief (and partial) survey of these links, especially those between secrecy generation and combinatorial tree packing. Our objective is to highlight specific connections between common randomness, secrecy and tree packing.
While much research has been devoted to learning and machine intelligence, the field is still in its infancy. In particular, a technology that will allow for heuristic exploitation of information domain regularities t...
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Cell manufacturing is widely introduced to cope with the dynamically changing market demands. This study considers a scheduling method for a cell assembly system for the products that are characterized by the type and...
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Pervasive Augmented Reality Gaming and Mobile P2P are both attracting significant focus and much progress has occurred recently. Augmented reality games extend reality with virtual elements to enhance game experience ...
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