A cost-efficient protection scheme for service recovery against single shared-risk link group failure in long-reach passive optical network

Long-Reach Passive Optical Network (LR-PON) is widely acknowledged as a promising solution for communication system in smart grid. Survivability is one of the key issues in the planning of LR-PON because massive high-rate traffic flows may be interrupted in case of network component failure. However, the survivability issue of LR-PON is addressed in few works. Most of previous works focus on single distribution fiber failure and remain untouched the simultaneous failure of multiple distribution fibers. In this paper, we focus on the survivability of LR-PON against single Shared-Risk Link Group (SRLG) failure. A reliability model is proposed to represent the probability of reliable connection for each Optical Network Unit (ONU). Based on this reliability model, we propose a novel Backup Fibers Protection (BFP) approach, aiming at the optimization of joint allocating backup capacity and deploying backup fibers. Through extensive simulation, we investigate the performance of BFP and demonstrate its effectiveness in different scenarios.

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Bandwidth Management Mechanisms for Ethernet Passive Optical Networks with Multi-ONU Customers

10.5753/sbrc_estendido.2020.12407 ◽

2020 ◽

Author(s):

Oscar Jaime Ciceri Coral ◽

Nelson Luis Saldanha Fonseca

Keyword(s):

Optical Networks ◽

Bandwidth Allocation ◽

Service Providers ◽

Optical Network ◽

Access Network ◽

Passive Optical Network ◽

Bandwidth Management ◽

Efficient Access ◽

New Business ◽

Cost Efficient

Passive optical network (PON) is a cost-efficient access network technology to deliver broadband services. Moreover, service providers employ PONs to offer novel services. New business scenarios are, thus, envisioned in which customers owning multiple optical network units (ONUs) are connected to a single PON (multi-ONU customers). This paper proposes a dynamic bandwidth allocation (DBA) algorithm to guaranteed bandwidth for multi-ONU customers in Ethernet PONs (EPONs). It also introduces a bandwidth sharing algorithm to support cooperation among customers. Results show that the proposed algorithm can improve the overall throughput and quality of service provisioning.

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A Novel Online Monitoring and Feeder Fiber Protection Scheme for Passive Optical Network (PON)

Smart Grid ◽

10.12677/sg.2011.13016 ◽

2011 ◽

Vol 01 (03) ◽

pp. 78-83

Author(s):

天雷肖

Keyword(s):

Online Monitoring ◽

Optical Network ◽

Passive Optical Network ◽

Protection Scheme

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Light Trail Based Cost Efficient Traffic Grooming in Optical WiMAX Hybrid Network

Journal of Computational and Theoretical Nanoscience ◽

10.1166/jctn.2020.8685 ◽

2020 ◽

Vol 17 (1) ◽

pp. 425-433

Author(s):

Deepa Naik ◽

Soumyadeb Maity ◽

Tanmay De

Keyword(s):

Optical Networks ◽

Optical Network ◽

Access Network ◽

Traffic Grooming ◽

Base Stations ◽

Passive Optical Network ◽

Hybrid Networks ◽

Hybrid Network ◽

Network Topologies ◽

Cost Efficient

Integrating Passive Optical Network (PON) and Worldwide Interoperability for Microwave Access network (WiMAX)achieves universal internet connectivity at a higher data rate. Here Passive Optical Networks (PONs) are used as the backbone. Base stations in WiMAX are connected to Optical Network Units. In this work cost, routing and resource allocation related issues in hybrid networks are investigated. Light trails are used for traffic grooming. Various network topologies are used for simulation and results are obtained, compared. and analyzed. The results confirm a lower cost solution by using hybrid networks for universal connectivity.

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