Novel Protection Strategies for Passive Optical Networks Based on Ring and Bus Topologies

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21230%2F15%3A00231242" target="_blank" >RIV/68407700:21230/15:00231242 - isvavai.cz</a>

Result on the web

<a href="http://onlinelibrary.wiley.com/doi/10.1002/ett.2846/abstract" target="_blank" >http://onlinelibrary.wiley.com/doi/10.1002/ett.2846/abstract</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1002/ett.2846" target="_blank" >10.1002/ett.2846</a>

Result language

angličtina

Original language name

Novel Protection Strategies for Passive Optical Networks Based on Ring and Bus Topologies

Original language description

This paper is focused on passive optical networks (PONs), especially on increasing their network resilience. Since the most critical components in PONs are usually the optical line termination unit (OLT) and optical fibers connecting all network nodes, the main motivation presented within this paper is to improve the resistance of PON against critical failures of OLT and optical fibers between them. Both presented solutions are based on using dual OLT units and the application of asymmetric splitters in order to balance the attenuation and optical signal levels throughout the entire network, while the main innovation consists in the application of ring and bus topologies. Both bus and ring topologies can be formed easily using only passive splitters with optimum splitting ratios, therefore no active components are necessary. The next advantage is the opportunity of placing both OLT units in physically diverse location, thus increasing the overall network resilience. Moreover, the presented idea with a bus topology offers an additional resistance against the failures of optical fibers connecting the splitters as well. Since the application of asymmetric passive splitters in both solutions is necessary in order to optimize the optical signal levels in the entire network, the mathematical models for calculating of their optimum splitting ratios are included. To verify the functionality of both topologies and their protection mechanisms, complex simulations were performed and are presented in this article as well.

Czech name

—

Czech description

—

Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

JA - Electronics and optoelectronics

OECD FORD branch

—

Project

<a href="/en/project/VG20102015053" target="_blank" >VG20102015053: The modern structure of photonic sensors and new innovative principles for intrusion detection systems, integrity and protection of critical infrastructure ? GUARDSENSE</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2015

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Transactions on Emerging Telecommunications Technologies

ISSN

2161-3915

e-ISSN

—

Volume of the periodical

26

Issue of the periodical within the volume

9

Country of publishing house

US - UNITED STATES

Number of pages

23

Pages from-to

1131-1153

UT code for WoS article

000360971400002

EID of the result in the Scopus database

2-s2.0-84940941212