Experimental Verification of Passive Optical Network With Ring Topology

Lafata, Pavel; Vodrazka, Jiri

doi:10.1002/mop.27783

Cited by 3 publications

(3 citation statements)

References 6 publications

(6 reference statements)

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“…Recently, a ring topology‐based WDM PON supporting eight remote nodes (RNs) at −26 dBm receiver sensitivity is realized 14 . Also, a ring‐based PON using asymmetric passive splitters is reported 15 . Another, a tree‐based PON with 7 ms restoration time is reported 16 .…”

Section: Introductionmentioning

confidence: 99%

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Wheel‐based 5G fronthaul/backhaul hybrid MDM‐NGPON/FSO system under Gamma‐Gamma turbulence and weather effects

Kumari,

Arya

2023

Int J Communication

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SummaryThis work presents the bidirectional and symmetric 40 Gbps wheel architecture comprising 16 channels‐based bidirectional hybrid next generation passive optical network with free space optics (NGPON/FSO) system using mode division multiplexing (MDM) scheme. The system incorporates a low‐cost high bandwidth and integrated time and wavelength division multiplexing with orthogonal frequency division multiplexing (TWDM‐OFDM) for data transmission over mixed fiber‐FSO links to various end users at donut modes 0 and 1. This system enhances the fifth generation (5G)‐based networks reliability, survivability, and flexibility, especially in rural places where the core fiber link may be damaged/destroyed under diverse turbulent and weather conditions. The obtained results depict the faithful multimode fiber range of 100 km with fixed FSO range of 100 m at −17 dBm receiver sensitivity and low power penalty of 0.2 dB at 10−9 bit error rate. Maximum FSO range of 2800 m under weak‐to‐strong Gamma‐Gamma turbulence and the effect of fog, rain, snow, and snow with rain can be obtained successfully with fixed 50 km fiber length. Also, the proposed wheel architecture provides superior performance over hybrid ring‐mesh architecture with high split ratio of 1:64. Moreover, the system can sustain up to 70 remote nodes at symmetric 10 Gbps throughput providing high gain, high optical signal‐to‐noise ratio, and low noise figure. The comparative literature work also reveals that the proposed architecture offers high bandwidth, security, long‐reach, and cost‐effectiveness in 5G fronthaul/backhaul networks.

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Section: Introductionmentioning

confidence: 99%

“…14 Also, a ring-based PON using asymmetric passive splitters is reported. 15 Another, a tree-based PON with 7 ms restoration time is reported. 16 A hybrid ring-tree topology WDM sustaining 64-consumer at 60 Gbps is proposed.…”

mentioning

confidence: 99%

Wheel‐based 5G fronthaul/backhaul hybrid MDM‐NGPON/FSO system under Gamma‐Gamma turbulence and weather effects

Kumari,

Arya

2023

Int J Communication

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“…Ring based fault detection and restoration architecture for PONs is proposed in [7][8], which utilize CPRs for high availability of the network along with ring extension between multiple RNs. However, single CPR per ONU introduce serious power budget issues, which reduces the ability of single ring based PONs to support large number of subscribers [3].…”

Section: Introductionmentioning

confidence: 99%

Self-Healing Hybrid Protection Architecture for Passive Optical Networks

Imtiaz¹,

Mehar²,

Waqas³

et al. 2015

ijacsa

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Abstract-Expanding size of passive optical networks (PONs) along with high availability expectation makes the reliability performance a crucial need. Most protection architectures utilize redundant network components to enhance network survivability, which is not economical. This paper proposes new self-healing protection architecture for passive optical networks (PONs), with a single ring topology and star-ring topology at feeder and distribution level respectively. The proposed architecture provides desirable protection to the network by avoiding fiber duplication at both feeder and distribution level. Moreover, medium access control (MAC) controlled switching is utilized to provide efficient detection, and restoration of faults or cuts throughout the network. Analytical analysis reveals that the proposed self-healing hybrid protection architecture ensures survivability of the affected traffic along with desirable connection availability of 99.9994 % at minimum deployment cost, through simple architecture and simultaneous protection against failures.

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A high bit rate free space optics based ring topology having carrier‐less nodes

et al. 2021

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A free space optics based ring topology that transmits full-duplex data to four different nodes in the ring is proposed. The link is designed such that the four nodes do not require a local optical source to transmit the uplink data. A wavelength division multiplexed signal composed of four different wavelengths each modulated by the downlink baseband data using differential phase shift keying is transmitted towards the nodes. At each node, the downlink baseband data is extracted and the received optical pulses are remodulated by the uplink baseband data using on-off keying modulation format. Each node has a data rate of 10 Gbps and is at a distance of 400 m from the consecutive node. The free space optical link is modelled on the basis of Gamma-Gamma channel model under different turbulence conditions by considering the refractive index structure parameter values of 5 × 10 −15 , 5 × 10 −13 and 5 × 10 −12 m −2∕3 . Bit error rate results are obtained for both the downlink and uplink channels. Finally, power budget analysis is presented to demonstrate the robustness of the link under different weather conditions.This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.

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Experimental Verification of Passive Optical Network With Ring Topology

Cited by 3 publications

References 6 publications

Wheel‐based 5G fronthaul/backhaul hybrid MDM‐NGPON/FSO system under Gamma‐Gamma turbulence and weather effects

Wheel‐based 5G fronthaul/backhaul hybrid MDM‐NGPON/FSO system under Gamma‐Gamma turbulence and weather effects

Self-Healing Hybrid Protection Architecture for Passive Optical Networks

A high bit rate free space optics based ring topology having carrier‐less nodes

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