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SDN aims to facilitate the management of increasingly complex, dynamic network environments and optimize the use of the resources available therein with minimal operator intervention. To this end, SDN controllers maintain a global view of the network topology and its state. However, the extraction of information about network flows and other network metrics remains a non-trivial challenge. Network...
This paper shows the development followed for three different structures of urban light electric vehicles. The first one is based in a Carbon Fiber Reinforced Plastic (CFRP) structure, the second one is a multi-material solution including aluminum, magnesium and structural thermoplastic joined by electromagnetic forces and the third one is based on the use of advanced high strength steel. For the...
Long transactions, high concurrency, and frequent activity situations occur in many areas. The intermediate process of long transactions in the process of execution is more, in the process, therefore, can not avoid frequent access to the data, the system overhead of the data access process is relatively large, which reduces the efficiency of the system and increase the pressure of the server. The...
H∞ consensus is investigated for multi-agent systems with linear dynamics and impulsive effects in this paper. First of all, by considering the effects of distributed impulses, the model of linear multi-agent systems with impulsive effects and external disturbances has been obtained. Then, in view of the average impulsive interval and the Lyapunov stability theory, an algorithm has been given to solve...
Smart objects (SOs) have been utilized widely to transform the physical environment around us to a digital world using the Internet of things (IoT) vision. Integrating a huge number of these devices into the Internet presents a significant necessity for an efficient discovery mechanism with high capability of an autonomous configuration and detection for theses devices and their provided services...
The network infrastructures have been rapidly upgraded in many high-performance networks (HPNs). However, such infrastructure investment has not led to corresponding performance improvement in big data transfer, especially at the application layer, largely due to the complexity of optimizing transport control on end hosts. We design and implement ProbData, a PRofiling Optimization Based DAta Transfer...
Industrial microgrids require control strategies that guarantee high reliability and power quality. In this paper a multi-layer active power and frequency control strategy for industrial microgrids is presented. It is composed by a three-layer hierarchical scheme. The first control layer is based on the droop method. The secondary control layer is based on an event-driven communication scheme that...
Using Commercial off-the-shelf (COTS) software over networks that are Disconnected, Intermittent and Limited (DIL) may not offer acceptable performance. Frequent network interruptions for both shorter and longer periods, as well as long delays, low data and high packet error rates characterize DIL networks. In this paper, we designed and implemented a prototype proxy to improve the performance of...
In this paper, we consider the privacy preserving problem in an agreement network under interception attacks. First, we introduce a consensus protocol with privacy preserving, where each node hides their initial states into a set of random sequences, and then injects the sequences into the process of consensus. Second, we assume that an attacker with limited power can intercept the data transmitted...
In this position paper, we define the SISSY challenge and explore what it might mean for the usual expected integrations and for the more difficult unexpected integrations.
Recently the multi-energy network had attracted attentions, which includes electricity, heat and fuel energies. These energies should be traded in market dynamics to maximize total economic benefits. However, energy transmission constraints caused by heat and/or fuel network structure restrict trading with market transaction. So in this paper coordinated EMS based on negotiated transaction mechanism...
This paper presents an approach for improving the overall performance of a general purpose application running as a task graph on a many-core neuromorphic supercomputer. Our task graph framework is based on graceful degradation and amelioration paradigms that strive to achieve high reliability and performance by incorporating fault tolerance and task spawning features. The optimization is applied...
Scientific HPC applications along with the emerging class of Big Data and Machine Learning workloads are rapidly driving the fabric scale both on premises and in the cloud. Achieving high aggregate fabric throughput is paramount to the overall performance of the application. However, achieving high fabric throughput at scale can be challenging - that is, the application communication pattern will...
In this paper, a generalized convex network optimization problem with local domains and constraints is formulated and solved by using distributed multi-agent dynamics. Within the framework of the present network optimization, it is assumed that the local system states and constraints are available to an individual agent and each agent may only share information with its neighbors. A distributed PI-based...
Consider the problem of energy loss caused by inefficient use of energy in Wireless Sensor Networks (WSN). A clustering energy-efficient transmission protocol for wireless sensor networks based on ant colony path optimization (CEETP-ACPO) is proposed. Firstly, use the distributed cluster computing energy-efficient routing scheme (DCCERS) to select cluster heads according to the center of gravity and...
In this paper, we consider the privacy preserving problem of consensus protocol. First, we introduce a privacy preserving scheme, where each node produces and transmits a sequence of random values with their mean equaling to the node's initial state. We show that the network can reach average consensus with privacy preserving scheme, and provide a sufficient condition under which the initial state...
FlexRay protocol has been developed as the de-facto industry standard for next generation in-vehicle communication with high bandwidth, time-triggered architecture and dual-channel redundancy. However, it does not define a mechanism to handle the transient errors, which is frequent on the common-used twisted wire cable. Thereby, FlexRay is hindered for the application in safety-critical communications...
In order to achieve network interface plug and play (PnP) of IEEE 1451 networked smart sensor, this paper presents network interface's universal plug and play (UPnP) mechanism of IEEE 1451 networked smart sensor. Firstly, UPnP based IEEE 1451 networked smart sensor system structure is set up. The self-recognition information conversion between IEEE 1451 model and UPnP model are elaborated. Scheduling...
In this paper, we present a novel distributed coverage control scheme with collision avoidance based on consensus approach and potential field. The computational geometry of spatial structures is exploited using centroidal Voronoi tessellation and the locational optimization problem is introduced in a distributed fashion. By using the interaction term of Voronoi neighbour, a distributed protocol is...
The control of multiple homonuclear spin systems is a long-standing problem in nuclear magnetic resonance (NMR). In this paper, we introduce the brachistchrone algorithm to local unitary control of such systems, which usually take a long operation time to discriminate because of their small resonant frequency differences. We show that for this particular problem the model can be reduced from 2N-dimensional...
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