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We recently presented a highly advantageous DCN architecture that supports on-demand, run-time topology malleability using WDM and optical space/wavelength switching technologies. We further investigate some implementation-related issues including scalability, hop-by-hop latency and optical power budget.
This paper presents a computational study on the performance of reliability measures by using optimized ANN for computer networks with fixed and varying link reliabilities. This objective of this paper is to focus on the design of minimum cost reliable computer networks when a set of nodes, their topology, and links are given to connect them. A comparative study of various approaches for evaluating...
In packet-switched computer networks, one of several challenging issues is how to determine an optimal path that satisfies a set of constraints while maintaining high utilization of network resources. This paper proposes an improved particle swarm optimization utilizing Iterative Chaotic Map with Infinite Collapses (ICMIC) perturbations (ICMICPSO) for shortest path computation in computer networks...
In this paper, we investigate the performance and dependability modeling of voice and data services in computer networks. We use Stochastic Petri Net as an enabling modeling approach for analytical evaluation of complex scenarios. We apply our proposed modeling approach in a case study to evaluate the dependability of an enterprise network, in terms of Total Cost of Ownership, and to assess the financial...
In random broadcasting or dynamic broadcast, source packets that have to be broadcast to all the other nodes are generated at each node of a network or a parallel/distributed system at random instances or in an uncoordinated manner. In this paper, we propose a priority-based routing scheme, to be referred to as prioritized dominating-set broadcasting (PDB), for random broadcasting in k-ary n-cubes...
Orb-web has many good features, such as refinement, nature and ultra-light structure. What is more, it is so super flexible and tensile that it withstands the impacts of strong wind or insect. At the same time, the spider can locate preys rapidly and accurately and capture them successfully. Face the communication network model, this paper describes the formation and structure of orb-web in brief,...
This paper proposes a new ring structure of network coding (RSNC) based on existing network coding topology, enlarging the field of application and reducing the complexity of coding. On the basis of real-time monitoring and dynamic allocation for network bandwidth, RSNC is applied to the CERNET backbone network. The route of the packet is decided by the source node when it sends data packet and it...
In this paper, we present a novel method for replica server placement in CDNs. As we all known, replica server should be placed closer to clients in order to reduce the latency and the bandwidth consumption. To minimize the maximum distance between a node and the nearest center, the minimum K-center problem and the k-HST are presented by researchers. However, these theoretical methods are either computationally...
The Pierre Auger Cosmic Ray Observatory employs a large array of Surface Detector stations to detect the secondary particle showers generated by the arrivals of Ultra High Energy Cosmic Rays. The operational Auger South site uses a tower-based wireless network for communication between the stations and observatory campus. Plans for a larger Auger North array call for a similar system. However, a variety...
How to improve the user experience for the networks is a problem should be extensively concerned about. In this paper, an approach to networks congestion analysis model based on Bayesian Network is proposed to realize the network system operation and maintenance effectively. Compare to the networks topology, the congestion pattern networks is constructed and each congestion object's conditional probability...
This paper deals with an approach to security analysis of TCP/IP-based computer networks. The method developed stems from a formal model of network topology with changing link states, and deploys bounded model checking of network security properties supported by SAT-based decision procedure. Its implementation should consist of a set of tools that can provide automatic analysis of router configurations,...
In this paper, we consider hybrid circuit/packet networks. A hybrid circuit/packet network consists of a circuit network co-existing with a packet network; generally the packet network is embedded on top of the circuit network. However, in certain cases such as the DOE energy sciences network (ESnet), the circuit network and the packet network are deployed side-by-side (e.g. they have common end-node...
Community detection has been one of the major topics in complex network research. Recently, several greedy algorithms for networks of millions of nodes have been proposed, but one of their limitations is inconsistency of outcomes. Kwak et al. propose an iterative reinforcing approach to eliminate inconsistency in detected communities. In this paper we delve into structural characteristics of communities...
Notice of Violation of IEEE Publication Principles"A Pascal Graph Property and Computer Network Topology,"by S.K. Pal, S.S. Sarma, S.G. Neogi,in the Proceedings of the First International Conference on Networks and Communications, 2009. NETCOM '09, December 2009, pp.151-154After careful and considered review of the content and authorship of this paper by a duly constituted expert committee,...
Design of Network on chip architectures for multimedia applications is being widely studied. This involves design decisions at various levels of hierarchy. Topology design is one of the significant factors that affect the net delay and the energy consumption of the system. Most of the applications are characterized by bandwidth requirements and latency constraints. The topology must be built satisfying...
Reconfigurability refers to systems incorporating some form of hardware programmability, that customizes how the hardware is used using a number of physical control points. These control points can be changed periodically in order to execute different applications using the same hardware. This paper presents the design and implementation of reconfigurable switch architecture for next generation networks...
Computer network can be analyzed linearly by idempotent system theory, residuation theory is one of main analyzing tools for idempotent mathematics. In this paper, we study the residuated function pairs that can be used in network modeling and analyzing, the basic properties of these pairs are obtained, and we also study their applications in network analysis. Our research shows that residuation theory...
Network coding is a promising technique to improve the resource efficiency and reliability for multicast networks. With network coding, each node of the multicast network is able to generate and transmit encoded data of information. This paper proposes a deterministic linear network coding scheme. This scheme exploits a special type of network topology called uniform network. This network structure...
This paper studies a topical capacitated network design problem that arises in the telecommunication industry. In this problem, given point-to-point demand between various pairs of nodes, a minimum cost survivable network must be designed by installing equipments (routers, line cards, ...) on nodes as well as link facilities on arcs. This realistic problem finds its motivation in the rapidly developing...
The performance of the existing network topology may be improved through various redesign techniques, which involves relocating customers and consolidation of clusters (sub-networks). Since the simulation study provides a virtual environment for assorting desirable features and analyzing the performance of the network under various scenarios, it is beneficial to go for a simulation study before the...
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