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The enhanced hypercube(denoted by Qn,k) is a very important network model because of its excellent properties which are superior to the corresponding properties of hypercube. For a given connected graph G of order n, a routing R is a set of n(n - 1) simple paths specified for each ordered pair of vertices in G. The load of a vertex (resp.edge) for a given routing R is the number of paths going through...
In WDM all-optical networks without wavelength conversion, traffic rerouting is motivated either by an optimization of resource utilization or by network survivability. In this paper, we use rerouting to optimize network resources allocation in order to set up an incoming lightpath demand to be blocked for lack of resources. Rerouting aims at reassigning the wavelength and/or the path of one or several...
Many structured Peer-to-Peer-Systems (P2P) have been developed over the past years. However, most of them rely on hash-functions and thus put major restrictions on applications being implemented on top of them. In this paper we present a very detailed description of Papnet, a hash-free P2P overlay-network that supports range-queries and realizes an infinite alphanumeric address space that can be used...
This paper presents the design of a decentralized storage scheme to support multi-dimensional range queries over sensor networks. We build a distributed k-d tree based index structure over sensor network, so as to efficiently map high dimensional event data to a two-dimensional space of sensors while preserving the proximity of events. We propose a dynamic programming based methodology to control...
The traditional Pastry design is a flat overlay network and limited-scope searching, in which all nodes have identical capabilities and responsibilities and all communication is symmetric. But in practice, because of a variety of available bandwidth and delay, each node has different capabilities. in this paper, a hierarchical Pastry network model is presented to address this limitation. Furthermore,...
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