Abstract
Today, passive optical networks (PONs) represent a modern solution for high-speed FTTx subscriber lines and networks. Due to the fact that optical fibres and cables are deployed in last-mile network segments. Unfortunately, the costs of trenching and installation of optical cables in cities are still very high today. However, the application of mathematical methods and algorithms for designing optimum network solutions and topologies might significantly decrease the overall capital expenditures (CAPEX) of the whole process. This article introduces an efficient method based on agglomerative clustering for an optimization of deployment of PONs in practice. The paper describes its application and proposes the necessary modifications of the clustering method for the environment of PONs. The proposed algorithm uses the technique to cluster and connect the adjacent optical terminals and splitters of PONs and to calculate the optimum locations of these units in order to achieve the most optimum network solution and to minimize the summary capital expenditures.
Highlights
Nowadays, the demands for transmission speed and overall transmission capacity of access networks are rapidly increasing [1, 2]
A typical passive optical networks (PONs) consists of one Optical Line Termination (OLT), which acts as a central unit, and Optical Network Terminals (ONTs) or Units (ONUs), which are located at the end-point users and connect these users to the PON itself [3, 4]
The following section contains a discussion of the results and their comparison with the existing hierarchical agglomerative clustering algorithm
Summary
The demands for transmission speed and overall transmission capacity of access networks are rapidly increasing [1, 2]. The Optical Distribution Network (ODN) is composed of all optical elements between OLT and all ONTs including optical fibres, patch cords, connectors, and especially passive optical splitters [3, 4]. Since all these components are typically passive (no power consumption, no management), no optical signal regeneration, routing nor switching is possible between OLT and ONTs, the ODN must always be properly designed and optimized [3, 4]. There are various existing techniques described in numerous scientific papers focused on the optimization and planning of PON topologies and networks, the most important ones will be briefly discussed
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
