Please use this identifier to cite or link to this item: http://hdl.handle.net/20.500.12216/157
Title: Smart algorithms for Hierarchical Clustering in optical network
Authors: Atalla, S. 
Tarapiah, S. 
Hendy, M.E. 
Hashim, K.F.B. 
Issue Date: 2016
Publisher: Kohat University of Science and Technology
Journal: International Journal of Communication Networks and Information Security 
Abstract: Network design process is a very important in order to balance between the investment in the network and the supervises offered to the network user, taking into consideration, both minimizing the network investment cost, on the other hand, maximizing the quality of service offered to the customers as well. Partitioning the network to smaller sub-networks called clusters is required during the design process in order to ease studying the whole network and achieve the design process as a trade-off between several attributes such as quality of service, reliability, cost, and management. Under Clustered Architecture for Nodes in an Optical Network (CANON), a large scale optical network is partitioned into a number of geographically limited areas taking into account many different criteria like administrative domains, topological characteristics, traffic patterns, legacy infrastructure etc. An important consideration is that each of these clusters is comprised of a group of nodes in geographical proximity. The clusters can coincide with administrative domains but there could be many cases where two or more clusters belong to the same administrative domain. Therefore, in the most general case the partitioning into specific clusters can be either an off-line or an online process. In this work only the off-line case is considered. In this Study, we look at the problem of designing efficient 2-level Hierarchical Optical Networks (HON), in the context of network costs optimization. 2-level HON paradigm only has local rings to connect disjoint sets of nodes and a global sub-mesh to interconnect all the local rings. We present a Hierarchical algorithm that is based on two phases. We present results for scenarios containing a set of real optical topologies.
URI: http://hdl.handle.net/20.500.12216/157
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