Highly Reliable Metro-Access Network Based on a Dual-Fiber Ring Architecture and Optimized Protection Mechanisms

Song, Zerui; Ji, Wei; Yin, Rui; Li, Jingyao; Gong, Zisu; Hua, Yun

doi:10.1109/access.2021.3117445

Cited by 8 publications

(4 citation statements)

References 50 publications

(115 reference statements)

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“…1,2 Similarly, the wavelength division multiplexed metro access network (WDM-MAN) is increasingly seen as a viable option for next-generation optical networks due to its low operating costs, high capacity, and transmission efficiency. 3 An accepted trend in the optical access network is merging metro and access structures under the cost-effectiveness paradigm to support many users. 4 This approach makes transparent reach possible between the metro network and the end user.…”

Section: Introductionmentioning

confidence: 99%

“…It simplifies the hierarchical telecom network architecture while simultaneously lowering operational complexity and expense 1,2 . Similarly, the wavelength division multiplexed metro access network (WDM‐MAN) is increasingly seen as a viable option for next‐generation optical networks due to its low operating costs, high capacity, and transmission efficiency 3 4 .…”

Section: Introductionmentioning

confidence: 99%

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Efficient optical fiber communication in the metro access domain based on an optical multicarrier source

Ullah,

Khan

et al. 2023

Micro & Optical Tech Letters

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This paper proposes an efficient optical fiber communication scheme for an optical metro access network (OMAN) based on an optical multicarrier (OMC) generator. The central office (CO)'s foundation is a novel, cost‐effective OMC‐generating technique. The OMC is designed from a pulsed laser source and three cascaded electro‐optic modulators (EOMs) driven by an amplified RF source of 20 GHz signal that has generated more than 60 frequencies with excellent tone‐to‐noise ratio (TNR) ~ 40 dB and amplitude excursions from zero to 3 dB. The conventional CO is replaced with a cost‐effective OMC‐based source with an effective switching mechanism, which is necessary and equally important to be handled reliably. The downstream data of 20 Gbps per carrier is transmitted using a duo‐binary coding scheme. Six remote nodes (RNs) supported by the suggested OMC source, at each RN 10 optical network units (ONUs), can be deployed having distance laps of 5 km between the RNs, the distance between the RNs and the ONUs is kept at 2 km, the ONUs were tested w.r.t the bit error rate (BER) and the power penalties for the proposed transmissions. The BER for different fiber lengths from 5 to 25 km at various RNs and ONUs ranges were calculated and demonstrated from 1e−3 to 1e−13, showing the feasibility of the proposed OMAN.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Efficient optical fiber communication in the metro access domain based on an optical multicarrier source

Ullah,

Khan

et al. 2023

Micro & Optical Tech Letters

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“…Therefore, NG-PON networks must support the end-to-end protection option for use cases if specified reliability requirements based on user profiles are expected. In the context of network traffic analysis, a discovery of appropriate tools for the evaluation of protection schemes considered as a part of the F5G architecture in future metropolitan and access optical networks is necessary [26][27][28].…”

Section: Introductionmentioning

confidence: 99%

Optimization of the Decision Criterion for Increasing the Bandwidth Utilization by Means of the Novel Effective DBA Algorithm in NG-PON2 Networks

Róka

2023

Future Internet

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In this paper, the reasons for the bandwidth and wavelength utilization in future next-generation passive optical networks are presented, and the possibilities for realization and utilization of extended dynamic wavelength and bandwidth algorithms for the second next-generation passive optical networks (NG-PON2) are analyzed. Next, principles of the effective dynamic bandwidth allocation are introduced in detail, focused on the importance of the decision criterion optimization. To achieve a better bandwidth utilization of dedicated wavelengths in NG-PON2 networks, this paper is focused on the novel effective dynamic bandwidth allocation algorithm with adaptive allocation of wavelengths to optical network units as well as the optimization of the decision criterion. The algorithm and the proposed method are tested and evaluated through simulation with actual traffic data. For analyzing novel extended dynamic wavelength and bandwidth algorithms used for various cases of wavelength allocation in NG-PON2 networks, the effective dynamic bandwidth allocation algorithm analysis is realized in the enhancement of simulation program. Finally, an optimization of the decision criterion defining a minimum bandwidth utilization of the actual wavelength is executed for NG-PON2 networks based on the hybrid time and wavelength division multiplexing technique.

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“…A WDM-PON architecture with the P2MP topology and with alternating optical fiber and optical wireless paths is expressed with a fiber fault protection in [17]. In [18], architectural configuration and operation principles for the metro-access network based on a ring architecture are presented and described together with protection mechanisms for different fiber failure scenarios. Various WDM-PON architectures utilizing only passive components in remote nodes are analyzed from a viewpoint of with the traffic protection securing in [19].…”

Section: Introductionmentioning

confidence: 99%

Performance Analysis of Wavelength Division Multiplexing-Based Passive Optical Network Protection Schemes by Means of the Network Availability Evaluator

Róka

2022

Applied Sciences

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This paper is focused on the performance analysis of protection mechanisms utilized in common wavelength division multiplexing-based passive optical networks. The main aim of the proposed research is providing an option of comparing different traffic protection scenarios for advanced optical network designs, evaluating their possible realizations from a viewpoint of the total optical power budget and analyzing their network availabilities with accommodation to concrete optical access infrastructures. First, a short basic classification of passive optical network architectures utilizing advanced wavelength division multiplexing techniques is introduced. Second, considered presumptive protection scenarios deployed to this kind of passive optical networks involved in the performance analysis are presented. For the performance analysis, corresponding reliability diagrams, relations and formulas used for the calculation of the total network availability are prepared for any specific scenario. In addition, the optical power budget is considered and subsequently evaluated for each protection scheme. For evaluating possible migration scenarios related to considered protection schemes and for comparing protection possibilities of various passive optical networks, a realization of the appropriate simulation tool must be executed. The simulation program utilizes specific parameters of particular optical components utilized in a selected protection scheme and presents its resultant network availability. Values of considered specific parameters can be changed according to the well-known data resources or specific network operator’s data. Subsequently, relevant simulation results obtained by the Network Availability Evaluator that can provide insights into relationships between a number of protection schemes are used for the performance analysis. Finally, an evaluation of the total network availability for considered traffic protection scenarios utilized in passive optical networks with advanced wavelength division multiplexing is included.

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Highly Reliable Metro-Access Network Based on a Dual-Fiber Ring Architecture and Optimized Protection Mechanisms

Cited by 8 publications

References 50 publications

Efficient optical fiber communication in the metro access domain based on an optical multicarrier source

Efficient optical fiber communication in the metro access domain based on an optical multicarrier source

Optimization of the Decision Criterion for Increasing the Bandwidth Utilization by Means of the Novel Effective DBA Algorithm in NG-PON2 Networks

Performance Analysis of Wavelength Division Multiplexing-Based Passive Optical Network Protection Schemes by Means of the Network Availability Evaluator

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