Supportive communication has conventional tremendous attention for wireless networks. Most existing works on supportive infrastructure are focused on linklevel corporeal layer issues. Consequently, the impacts of supportive infrastructure on network-level upper layer issues, such as topology control, map-reading and network capacity, are largely disregarded. In this article, we propose a Capaci...

Without assuming any knowledge of the underlying physical topology, the conventional P2P mechanisms are designed to randomly choose logical neighbors, causing a serious topology mismatch problem between the P2P overlay network and the underlying physical network. This mismatch problem incurs a great stress in the Internet infrastructure and adversely restraints the performance gains from the va...

in this paper, a new circuit is proposed for step-up z-source inverter based on qzsi (quasi-z-source inverter). the proposed topology inherits all advantages of the conventional topology. the proposed topology in comparison with conventional topology reduces the st (shoot-through) duty cycle by over 25% at the same voltage boost factor. theoretical analysis of the proposed qzsi in the st and no...

Virtualized environments have been around for a long time, but until recently these have focused solely on compute virtualization and left the network behind. Network virtualization enables multiple tenants to share the same physical infrastructure by decoupling the physical network from the virtual network. In this paper, we introduce OpenVirteX, a Network Virtualization Platform which provide...

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 ...

let  be a graded ring and  be a graded -module. we define a topology on graded prime spectrum  of the graded -module  which is analogous to that for , and investigate several properties of the topology.

in this paper, a pointwise pseudo-metric function on the l-realline is constructed. it is proved that the topology induced by this pointwisepseudo-metric is the usual topology.

Adaptive security systems aim to protect valuable assets in the face of changes in their operational environment. They do so by monitoring and analysing this environment, and deploying security functions that satisfy some protection (security, privacy, or forensic) requirements. In this paper, we suggest that a key characteristic for engineering adaptive security is the topology of the operatio...

In a power grid used to distribute electricity, optical fibers can be inserted inside overhead ground wires to form an optical network infrastructure for data communications. Dense wavelength division multiplexing (DWDM)-based optical networks present a promising approach to achieve a scalable backbone network for power grids. This paper proposes a complete optimization procedure for optical ne...

The role of topology in QIS with physical connection to the noncommutativity,discretization,supersymmetry, entanglement, nonseparability and CP violation in physics is discussed.