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

Kód výsledku v 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>

Výsledek na webu

<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>

Jazyk výsledku

angličtina

Název v původním jazyce

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

Popis výsledku v původním jazyce

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.

Název v anglickém jazyce

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

Popis výsledku anglicky

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.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

JA - Elektronika a optoelektronika, elektrotechnika

OECD FORD obor

—

Projekt

<a href="/cs/project/VG20102015053" target="_blank" >VG20102015053: Moderní struktury fotonických senzorů a nové inovativní principy pro detekci narušení integrity systémů a ochranu kritických infrastruktur - GUARDSENSE</a><br>

Návaznosti

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

Rok uplatnění

2015

Kód důvěrnosti údajů

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

Název periodika

Transactions on Emerging Telecommunications Technologies

ISSN

2161-3915

e-ISSN

—

Svazek periodika

26

Číslo periodika v rámci svazku

9

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

23

Strana od-do

1131-1153

Kód UT WoS článku

000360971400002

EID výsledku v databázi Scopus

2-s2.0-84940941212