Achieving a deep understanding of the Internet topology has proved very challenging since it involves solving difficult task, e.g. mapping the actual topology, characterising it and developing generation models that capture the fundamental properties. There are two categories of tools which were developed to deal with network topology, namely, topology generations tools and network/topology dis...

Network topology discovery is the basis for any network management application. The problem of estimating internal structure and link-level performance from end-to-end measurements is known as network tomography. This paper proposes a novel approach to discover network characteristics, in particular, tree topology from end-to-end path metrics between OD (Origin – Destination) pairs. The approac...

in the last decade, many applied common studies were done in economic social systems phenomena by using network analysis. in these studies, trade relations can be considered as a network that each vertex represents a country and the trade relations between countries represent links of this network. first, we try to make the world exporting and importing networks based on the existence data for ...

The design of network protocols is greatly accelerated by the use of simulators particularly when studying a protocol’s behavior in a large internetwork topology. However the accuracy of the simulation results are heavily affected by the input network topology. As taking a real map as an input is not always feasible, artificially created topologies are often used. There exist many network topol...

Recent research and development in the area of next generation train backbones have created an incentive towards the replacement of legacy interconnecting data communication architectures with newer and more innovative backbones. The onboard Ethernet technology has been applied in the train onboard detection sensor network gradually. Network delay is an important factor of detection sensor netw...

This paper studies the problem of designing a logical topology over a wavelength-routed all-optical network physical topology. The physical topology consists of the nodes and ber links in the network. On an all-optical network physical topology, we can set up lightpaths between pairs of nodes, where a lightpath represents a direct optical connection without any intermediate electronics. The set...

there is little consensus on the corporate diversification-efficiency relationship in the diversification literature. according to the corporate diversification, firms have a tendency to get more market share with diversifying in the local segment or in the international market. theoretically, a contradictory exists between the profitable strategy and the value reducing strategy in the diversif...

Network Topology refers to layout of a network and how different nodes in a network are connected to each other and how they communicate. Topologies are either physical (the physical layout of devices on a network) or logical (the way that the signals act on the network media, or the way that the data passes through the network from one device to the next). The knowledge of network topology is ...