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The Use of Enumerative Techniques in Topological Optimization of Computer Networks Subject to Fault Tolerance and Reliability

Abd-El-barr, Mostafa and Zakir, Ahmer (2003) The Use of Enumerative Techniques in Topological Optimization of Computer Networks Subject to Fault Tolerance and Reliability. Infocomm. pp. 1-7.

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Abstract

Topological optimization of computer networks is concerned with the design of a network by selecting a subset of the available set of links such that the fault tolerance and reliability aspects are maximized while a cost constraint is met. A number of enumeration-based techniques were proposed to solve this problem. They are based on enumerating all the possible paths (for Terminal reliability) and all the spanning trees (for ��Network reliability). Existing enumeration-based techniques for solving this network optimization problem ignore the fault-tolerance aspect in their solution. Fault tolerance is an important network design aspect. A fault tolerant network is able to function even in the presence of some faults in the network. In this paper, we propose one algorithm for optimizing the terminal reliability and another for optimizing the network reliability while improving the fault tolerance aspects of the designed networks. Experimental results obtained from a set of randomly generated networks using the proposed algorithms are presented and compared to those obtained using the existing techniques [1], [2]. It is shown that improving the fault tolerance of a network can be achieved while optimizing its reliability however at the expense of a reasonable increase in the overall cost of the network while remaining within a maximum pre-specified cost constraint.



Item Type:Article
Date:2003
Subjects:Computer
Divisions:College Of Computer Sciences and Engineering > Computer Engineering Dept
Creators:Abd-El-barr, Mostafa and Zakir, Ahmer
Email:UNSPECIFIED, azakir@kfupm.edu.sa
ID Code:263
Deposited By:AHMER ZAKIR
Deposited On:10 Mar 2008 14:35
Last Modified:12 Apr 2011 13:06

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