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This article defines the terms “remote under-construction facility” and “hazardous under-construction facility”. The up-to-date sci-tech problem of provision for efficient communication at remote and hazardous construction facilities is stated. The suitability of usage of mobile ad hoc networks is proved in this article as well.
As the rapid growth of computing demand in cloud computing, the virtualization of data center network is more and more deployed. The data center is reconstructed to Software Defined Data Center with the technical of Software defined network. The services of data center are formed into Virtual Data Center, which is based on the virtual resource collection of the physical network section. So the VDC...
In this paper, we investigate the problem of providing highly available, decentralized, dynamic path selection in high performance computing networking. We look at a use case for dynamic path selection that better utilizes bandwidth available in the network. The network architecture we propose is a partial mesh grid whereby each host is directly connected to four forwarding devices. We propose an...
Organizational issues of the backhaul network using Long Term Evolution technology are considered. Backhaul connections for different network segments are analyzed. A model of the backhaul network using Multiprotocol Label Switching technology is proposed to form the transport basis for existing networks. The bandwidth and transporting performance of the network is estimated.
The functionality of communication networks can be extended by using overlay networks. One interesting application of this idea is to acquire more flexibility in path choices through the network without introducing new mechanisms or physical changes to the underlying topology. This paper studies the benefits of installing main and backup paths assisted by an overlay network, solving this problem at...
This paper proposes and evaluates a performance efficient application mapping algorithm for mesh-based NoCs. The proposed algorithm first prioritizes tasks of the given application graph based on their total in/out communication traffic. Then a task with the most communication traffic is selected and mapped onto the center part of the mesh topology i.e., a core with the most available communication...
The time-triggered principle establishes and maintains a system-wide synchronized time-base by the local clocks of the device. The proposed concept of Time-Triggered Ethernet (TTE) guarantees the determinacy of time-critical message for avionics and safety-critical systems. This paper presents an algorithm based on path-hop of tasks to generate a rational scheduling timetable to ensure is free of...
A key principle for optimizing network performances is to understand the relationship between network topology, configuration parameters, and their influence on the behavior of network protocols. While an attractive approach to this problem is to use formal models of protocols in combination with mathematical optimization, such methods are often limited by either poor scalability or approximations...
A simple scheme to implement dedicated path protection in Elastic Optical Networks is proposed and evaluated under dynamic traffic conditions. It consists in splitting the spectrum available in the network links in two bands used respectively for working and backup traffic. These bands are conveniently sized taking into account the network topology and the routing constraints. When the band dedicated...
Due to increasing number of cores, the placement of the cores onto NoC platform has become an important issue. If we can map the application cores close to each other to place them with more communication requirements, the performance parameters will improve and the network will be more efficient. In this paper, we propose a low complexity heuristic algorithm for the application mapping onto NoC to...
As we know, mapping is one of the most important steps in the process of network on chip. If we can map the application cores close to each other to place them with more communication requirements, the performance parameters will improve and the network will be more efficient. In this paper, we propose a low complexity heuristic algorithm for the application mapping onto NoC to improve latency. In...
To achieve the Fiber-wireless (FiWi) access network's seamless networking as well as to alleviate bandwidth tension, network virtualization is applied in FiWi networks. With the virtualization of the network, the growing number of people share the same physical resources. However, network components, once out of order, will inevitably bring a lot of loss to more users. Meanwhile, if a node or link...
Polarization diversity is generally achieved by using two orthogonal polarizations on the same link, which enables to double the available bandwidth. In this paper, we study the possibility to connect the nodes of a line-of- sight ring topology network with one single channel for all the links, with the condition that the polarization of any link is orthogonal to the polarization of the two adjacent...
today's cloud computing Data Centers (DCs) contain tens of thousands of servers with highly significant and remarkable bandwidth requirements as the demands of cloud computing applications, social applications, multimedia contents, and data intensive analysis are dramatically rising. Even thus, current DC technologies have following problems. First, power consumption of a Data Center Network (DCN)...
It has been shown that multiple, correlated failures severely impair telecommunications networks inducing more damage than independent failures. In this paper we present a simple path provisioning scheme, which offers maximal reliability to networks affected by multiple, correlated failures. The scheme characterizes correlated failures, which are modeled using the concept of probabilistic shared-risk...
We propose Optical Circuit Switching for dynamically creating reconfigurable partitions in large-scale systems with Dragonfly networks. Up to 2x execution-time improvement is demonstrated for global traffic patterns in a >13,000-node system using a production-grade network simulator.
We propose a survivable routing and resource assignment scheme with MPP and SRLG in VON to get less resources consumption and enough protection against physical failure. 29% reduction in resource consumption can be achieved.
Data Center is a multifunctional infrastructure that consists of thousands of compute servers and network devices. The fat-tree topology is widely adopted because of its efficiency and safety. However, the fat-tree topology can not completely meet the time-varying communication needs from physical and virtual machines. 60 GHz wireless technology was then incorporated into data centers for its high...
Linear network coding (LNC) has great advantages in optimizing throughput, balancing network load, increasing robustness, etc. Since the coded data packets transmitted in the network are linear combinations of original data packets, the attacker cannot decode to obtain the original data when it cannot acquire enough coded data packets. Therefore, LNC can also provide efficient information security...
This paper gives a brief report on a new 100-Gbps academic backbone network, called SINET5, which started full-scale operations in April 2016. SINET5 has more than 50 backbone routers and forms a fully meshed topology by using MPLS-TP systems to provide researchers in every Japanese prefecture with 100-Gbps access, minimized-latency, and SDN-friendly environments. SINET5 gives a multi-layer, dynamically...
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