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Computer Network has great effect on improving the efficiency of the communication system and application requirements in our life. In order to establish transmission path with movement characteristics and improve the efficiency of information transmission in Computer Network, the optimized clustering routing protocol based on node position using the minimum distance routing competition mechanism...
We study computing all-pairs shortest paths (APSP) on distributed networks (the CONGEST model). The goal is for every node in the (weighted) network to know the distance from every other node using communication. The problem admits (1+o(1))-approximation Õ(n)-time algorithms [2], [3], which are matched with \tilde Ω(n)-time lower bounds [4], [5],\footnote{\tilde \Theta, Õ...
Internet of Things (IoT) is characterized by heterogeneous devices that interact with each other on a collaborative basis to fulfill a common goal. In this scenario, some of the deployed devices are expected to be constrained in terms of memory usage, power consumption and processing resources. To address the specific properties and constraints of such networks, a complete stack of standardized protocols...
Managing a one-way vehicle sharing system means periodically moving free access vehicles from excess to deficit stations in order to avoid local shortages. We perform a lower bound analysis for the static version of the resulting operational decision problem, and derive from this analysis two heuristic algorithms whose main feature is to be vehicle oriented, which means that they focus on the way...
HPC systems have shifted to burst buffer storage and high radix interconnect topologies in order to meet the challenges of large-scale, data-intensive scientific computing. Both of these technologies have been studied in detail independently, but the interaction between them is not well understood. I/O traffic and communication traffic from concurrently scheduled applications may interfere with each...
Dragonfly network is widely used in modern high-performance computing systems. On this network, however, interference caused by network sharing can lead to significant network congestion and degraded performance. In this work, we present a comparative analysis of intra-application interference on applications with nearest neighbor communication, considering various placement strategies. Our results...
In this paper, we propose a comprehensive co-simulation platform for the clusters of microgrids. Our proposed real-time platform considers both physical and communication layers, which can be simulated via real-time digital power system simulator (RTDS) and OMNeT++. We also propose a novel oblivious power routing scheme to prevent congestion and minimize network loss. To this end, we firstly introduce...
Pin accessibility influences the routability of a design at the stage of block/chip assembling. The estimation model for pin accessibility in previous researches counts the total number of intersections between each pin and M2 routing tracks. It does not consider the variation of pin accessibility as the spacing between a pin and its neighboring pins and metal wires changes. Besides, it cannot properly...
The high level of realism of spiking neuron networks and their complexity require a substantial computational resources limiting the size of the realized networks. Consequently, the main challenge in building complex and biologically-accurate spiking neuron network is largely set by the high computational and data transfer demands. In this paper, we implement several efficient models of the spiking...
The so-called Ring Road approach has been identified as interesting application area of DTN protocols. It leverages low-cost low-earth orbit satellites in order to inter-connect isolated networks with the Internet. Network coding may be used to introduce redundancy to address e.g. lossy links. In this paper, a simulator setup for network coding in Ring Road networks is presented and discussed. The...
Anonymous network provides user privacy to protect identity. The onion routing (TOR) project is one kind of Internet anonymous networks which attracts many researchers and clients nowadays, because of its simplicity and scalability. However, there are some difficulties to analyze TOR performance within live TOR networks since it is distributed and its security nature. This paper presents a TOR network...
Throughput performance, an important metric for interconnection networks, is often quantified by the aggregate throughput for a set of representative traffic patterns. A number of models have been developed to estimate the aggregate throughput for a given traffic pattern on an interconnection network. Since all of the models predict the same property of interconnection networks, ideally, they should...
The wide availability of GPS-enabled devices has fueled the development of location-based applications. Among the most popular are navigation applications that guide users along their way. Due to the limited availability and precision of GPS in typical indoor environments, most navigation applications are limited to outdoor scenarios. To mitigate this, researchers and practitioners have been developing...
Reducing power and energy consumption in large scale networks remains a challenging problem. The increasing need to support multimedia applications in future Internets further compound this problem. This paper addresses a key issue of how to efficiently assign per-router flow delays and set per-processor execution speeds, along a routing path, to jointly minimize energy consumption and meet end-to-end...
Many protocols have been emerged for facing the problem of energy consumption in the wireless sensor network (WSN). Low Energy Adaptive Clustering Hierarchy (LEACH) protocol is one of these protocols, which achieved a lot of spreading. In this paper, a dynamic multi-hop technique (DMHT-LEACH) protocol is proposed based on the LEACH protocol. The DMHT-LEACH protocol suggests a dynamic technique for...
The quantity of maritime communication ships increases gradually, which brought the problem of communication path selection. This paper presents the Optimum Cooperative Relay Model for Moving Targets Based on Ant Colony Algorithm, the model provides the communication path of the fewest routing times to the moving ships that are far apart, which has reduced the space link resources consumption. Compared...
Satellite-derived rainfall can be a potential source for flood detection and monitoring in ungauged watersheds. This study investigated the hydrological utility of satellite-derived rainfall through rainfall-runoff modeling. The results showed that the COMS satellite rainfall led to large underestimation in runoff discharge indicating that a preprocessing scheme such as bias correction or adjustment...
Recent work on granular computing has introduced new notions which apply to research network structure. In this paper, we present a study of a multiple level of granularity for network. The first problem is how to model the multiple level network based on granular structure. We then propose a method of constructing a multiple level network. Compared with flooded searching path network, the proposed...
In this paper, a new routing strategy named as Distributed Multiple Path (DMP) routing strategy is proposed. To yield a high-efficiency transmission performance, the proposed DMP routing strategy utilizes the information of static network topology, as well as that of dynamic network transmission status. Specifically, for each of the routing Origin-Destination (O-D) node pairs, the DMP routing strategy...
This work proposes an approach based on Steiner trees to efficiently support multipoint communications in a multi-domain context, where each domain exposes a synthetic and aggregated view of its network. The approach that we propose is based on two pillars: The adoption of a topology aggregation of each domain's network as a Steiner tree and the use of a shortest path heuristic for the calculation...
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