FTTH network survivability security based on massive fiber optic mechanical switch in consolidated central office

Lee, Young Wuk; Lee, Yong Gi

doi:10.1109/coin.2010.5546557

Cited by 2 publications

(5 citation statements)

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“…As the move of FTTH network, survivability or robustness of FTTH system has become an important issue [12][13][14][15][16][17][18][19][20][21][22][23][24][25]. From the view point of implementing methods for enhancing the survivability of FTTH system, we can divide the research works into two parts roughly.…”

Section: Related Workmentioning

confidence: 99%

“…One part of the reported research works focused on the protection or restoration schemes for the FTTH network when the failures had been detected [14][15][16][17][18][19][20]. A hybrid protection architecture which was devised to ensure survivability against multipoint failure (MPF) as well as the single point failure (SPF) in WDM-PON for FTTH was proposed [17].…”

Section: Related Workmentioning

confidence: 99%

“…SDRS used the optical switch device to increase the efficiency, survivability and reliability of FTTH network [18]. A fiber optic line protection scheme based on the shared core method with massive fiber optical mechanical switch was proposed to secure FTTH lines survivability in central office consolidation [19]. Ref.…”

Section: Related Workmentioning

confidence: 99%

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Triplexer Monitor Design for Failure Detection in FTTH System

Fu¹,

et al. 2012

J. Opt. Commun.

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Triplexer was one of the key components in FTTH systems, which employed an analog overlay channel for video broadcasting in addition to bidirectional digital transmission. To enhance the survivability of triplexer as well as the robustness of FTTH system, a multi-ports device named triplexer monitor was designed and realized, by which failures at triplexer ports can be detected and localized. Triplexer monitor was composed of integrated circuits and its four input ports were connected with the beam splitter whose power division ratio was 95:5. By means of detecting the sampled optical signal from the beam splitters, triplexer monitor tracked the status of the four ports in triplexer (e.g. 1310 nm, 1490 nm, 1550 nm and com ports). In this paper, the operation scenario of the t riplexer monitor with external optical devices was addressed. And the integrated circuit structure of the t riplexer monitor was also given. Furthermore, a failure localization algorithm was proposed, which based on the state transition diagram. In order to measure the failure detection and localization time under the circumstance of different failed ports, an experimental test-bed was built. Experiment results showed that the detection time for the failure at 1310 nm port by the triplexer monitor was less than 8.20 ms. For the failure at 1490 nm or 1550 nm port it was less than 8.20 ms and for the failure at com port it was less than 7.20 ms.

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Section: Related Workmentioning

confidence: 99%

Section: Related Workmentioning

confidence: 99%

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Triplexer Monitor Design for Failure Detection in FTTH System

Fu¹,

et al. 2012

J. Opt. Commun.

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“…The connections between two devices might also be subjected to physical attacks that range from unplugging cords or cables to unauthenticated or unauthorized devices, damaging or severing the channels physically, or simply removing connections to the legitimate devices. Wiretapping and open authentication mechanisms are vulnerabilities that allow the attacker to gain access to the network directly [61,62]. The access points could deliberately be turned rogue by an attacker to potentially exploit for man-in-the-middle (MITM) attacks.…”

Section: Physical (Layer 1)mentioning

confidence: 99%

“…These attacks could be mitigated in different ways: (1) blocking or hardening the unused Universal Serial Bus (USB) ports; (2) using data storage cryptography to protect sensitive data to at least prevent the loss of data confidentiality or integrity if the theft is successful; and (3) employing additional security methods such as ACLs to ensure accountability, and auditing to track and control the DER devices. Additionally, to mitigate physical attacks, the devices could be installed in enclosures secured by locks and keys, or could be physically isolated from other frequently used infrastructure in the area, guarded by fences or gates [57,62,96].…”

Section: Physical (Layer 1)mentioning

confidence: 99%

A Survey of Protocol-Level Challenges and Solutions for Distributed Energy Resource Cyber-Physical Security

et al. 2018

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The increasing proliferation of distributed energy resources (DERs) on the smart grid has made distributed solar and wind two key contributors to the expanding attack surface of the network; however, there is a lack of proper understanding and enforcement of DER communications security requirements. With vendors employing proprietary methods to mitigate hosts of attacks, the literature currently lacks a clear organization of the protocol-level vulnerabilities, attacks, and solutions mapped to each layer of the logical model such as the OSI stack. To bridge this gap and pave the way for future research by the authors in determining key DER security requirements, this paper conducts a comprehensive review of the key vulnerabilities, attacks, and potential solutions for solar and wind DERs at the protocol level. In doing so, this paper serves as a starting point for utilities, vendors, aggregators, and other industry stakeholders to develop a clear understanding of the DER security challenges and solutions, which are key precursors to comprehending security requirements.

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FTTH network survivability security based on massive fiber optic mechanical switch in consolidated central office

Cited by 2 publications

References 0 publications

Triplexer Monitor Design for Failure Detection in FTTH System

Triplexer Monitor Design for Failure Detection in FTTH System

A Survey of Protocol-Level Challenges and Solutions for Distributed Energy Resource Cyber-Physical Security

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