As more and more mission critical service are now transported over high-speed networks, it becomes an important issue to make use of the relativity of multiple link/node failures and improve transport performance for ...
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As more and more mission critical service are now transported over high-speed networks, it becomes an important issue to make use of the relativity of multiple link/node failures and improve transport performance for high-speed networks. In this paper, we propose a novel algorithm called low cost an S disjoint paths algorithm (LCSd for short) to establish a SrLG disjoint active path and backup path pair for network protection. Based on the TF algorithm, LCSd algorithm introduces the number of links which relate to the SrLG as a new constraint. Through link weight adjustment before the second time SPF calculate, the backup path can avoid the risk sharing with active path. Theoretical analysis and experiment results have shown that LCSd algorithm resolved the trap problem and path pair total cost non-optimal problem under SrLG disjoint constraint. Compared with rF and TF algorithms, LCSd algorithm is significantly superiority in the successful ratio to find feasible solution and can guarantee minimum total cost of active and backup path.
A novel hyperchaotic system derived from Liu system is proposed in this paper. Lyapunov exponent, phase portrait and Poincare mapping are given to verify that the system is hyperchaotic. A controller is designed to co...
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A novel hyperchaotic system derived from Liu system is proposed in this paper. Lyapunov exponent, phase portrait and Poincare mapping are given to verify that the system is hyperchaotic. A controller is designed to compel the hyperchaotic system to converge into the equilibrium. It is proved theoretically that this control law is feasible and valid by Lyapunov second method. Based on linear feedback synchronization control principle, synchronization control of the novel hyperchaotic system is realized. Numerical simulation shows that this synchronization method is simple and effective. As long as the proper linear feedback control vector is chosen, it is easy to achieve the rapid synchronization between the driving system andresponse system.
In this paper, procedural texture mapping based on Perlin noise is firstly implemented and simulated in Matlab. And then the design is converted from float-point to fix-point in Simulink. Using the system modeling too...
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In this paper, procedural texture mapping based on Perlin noise is firstly implemented and simulated in Matlab. And then the design is converted from float-point to fix-point in Simulink. Using the system modeling tool, System Generator from Xilinx company, the noise function can be directly mapped into FPGA hardware. From the experimental results, various graphical textures can be implemented in real time and with realistic effects in FPGA hardware.
This paper proposed a novel Current Control based modular multilevel Voltage-Source Converter (CCVSC) topology suitable fordifferent rates of voltage application, especially for the interface of renewable power sourc...
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This paper proposed a novel Current Control based modular multilevel Voltage-Source Converter (CCVSC) topology suitable fordifferent rates of voltage application, especially for the interface of renewable power sources with the main gird and power transmission anddistribution usage. The fundamental concept and the applied control scheme are introduced. The unbalanced energy mitigation function of the proposed converter has been explained, and the concerned parameters have been deduced. The characteristics and advantages compared with the existing VSC HVdC are discussed. The simulation results of a 20 MW dual-end CCVSC HVdC system illustrate the feasibility of this new topology and efficiency of the control scheme.
In this paper, we provide a non route-calculating MPLS LdP fast protection switching scheme called LdP NrC-FPS scheme which is efficient in transient multi-failures in MPLS networks. This scheme makes full use of vari...
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In this paper, we provide a non route-calculating MPLS LdP fast protection switching scheme called LdP NrC-FPS scheme which is efficient in transient multi-failures in MPLS networks. This scheme makes full use of various working modes and configurable loop detection of LdP protocol.. When network failures happen, the scheme need not to compute routing again. The scheme uses Path Vector TLV and Hop Count TLV in LdP mapping message to avoid loop in transient multi-failure scenario. Furthermore, OAM mechanism has been introduced into LdP NrC-FPS scheme for accelerating fault recovery process. Compared with traditional fast rerouting strategies in IP and MPLS layer, it reduces the failure recovery time of rerouting and has the advantage of more efficient network resource utilization. Performance analysis shows that LdP NrC-FPS scheme outperforms than traditional IP fast reroute scheme and MPLS protection switching scheme at loop ratio , path unreachable ratio and control message overhead aspects.
作者：
ZHAO WeiHE GaohongNIE FeiZHANG LinglingState Key Laboratory of Fine Chemicals
R&D Center of Membrane Science and Technology School of Chemical Engineering Dalian University of Technology Dalian 116012 School of Petrochemical Engineering
Shenyang University of Technology Liaoyang 111003 State Key Laboratory of Fine Chemicals R&D Center of Membrane Science and Technology School of Chemical Engineering Dalian University of Technology Dalian 116012
We have obtained the Schottky barrier height (SBH) of 3.4meV for an electron at the interface of nickel-silicide (NiSi) and silicon (Si) interface using sulfur (S) implantation after silicidation (S-IAS) process follo...
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We have obtained the Schottky barrier height (SBH) of 3.4meV for an electron at the interface of nickel-silicide (NiSi) and silicon (Si) interface using sulfur (S) implantation after silicidation (S-IAS) process followed by drive-in annealing process. This value of SBH is much smaller than those previously reported. The NiSi/Si interface morphology observed by TEM indicating well interfacial flatness and no degradation occurs by sulfur implantation. The secondary-ion-mass-spectroscopy (SIMS) analysis result showed that S diffusion was suppressed by S-IAS process, leading to such a small value of SBH. In addition, S-IAS process was applied to 50nm MOSFET and the parasitic resistance was effectively lowered.
Forwarding and control element separation (ForCES) architecture network devices can satisfy the requirements of reconstruction for the new generation of the Internet better. This paper proposes a novel synthetic netwo...
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Forwarding and control element separation (ForCES) architecture network devices can satisfy the requirements of reconstruction for the new generation of the Internet better. This paper proposes a novel synthetic network management model based on ForCES. This model regards the device under management (dUM) as forwarding element (FE) in ForCES architecture and uses FE model to abstract the definition of management function block (MFB), dUM communicates with network management controller using ForCES. This model provides an efficient and flexible method for synthetic network management of diverse dUMs.
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