Next Generation Optical Access Networks: from TDM to WDM

Gutierrez, L.; Garfias, Paola; Andrade, Marilet De; Cervelló-Pastor, Cristina; Sallent, S.

doi:10.5772/8473

Cited by 14 publications

(8 citation statements)

References 32 publications

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“…Algorithms for the Dynamic Wavelength Allocation (DWA) can be designed and operated using different approaches related to wavelength scheduling processes [23,24]. A minimization of active wavelength channels considering the high burstiness and delay requirement of fronthaul data transmission in the Centralized Radio Access Network (C-RAN) architecture with the tree network topology using a novel algorithm of bandwidth and wavelength allocation is proposed in [25].…”

Section: The Deployment Of Dwa Algorithms For Selected Wdm-pon Networ...mentioning

confidence: 99%

An Effective Evaluation of Wavelength Scheduling for Various WDM-PON Network Designs with Traffic Protection Provision

Róka

2021

Symmetry

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Recently, metropolitan and access communication networks have markedly developed by utilizing a variety of technologies. Their bearer communication infrastructures will be mostly exploiting the optical transmission medium where wavelength division multiplexing techniques will play an important role. This contribution discusses the symmetric sharing of common optical network resources in wavelength and time domains. Wavelength-Division Multiplexed Passive Optical Networks (WDM-PON) attract considerable attention regarding the next generation of optical metropolitan and access networks. The main purpose of this contribution is presented by the analysis of possible scheduling of wavelengths for our novel hybrid network topologies considered for WDM-PON networks. This contribution briefly deploys adequate Dynamic Wavelength Allocation (DWA) algorithms for selected WDM-PON network designs with the provision of traffic protection when only passive optical components in remote nodes are utilized. The main part of this study is focused on the use of wavelength scheduling methods for selected WDM-PON network designs. For evaluation of offline and online wavelength scheduling for novel hybrid network topologies, a simulation model realized in the Matlab programming environment allows to analyze interactions between various metropolitan and access parts in the Optical Distribution Network (ODN) related to advanced WDM-PON network designs. Finally, wavelength scheduling methods are compared from a viewpoint of utilization in advanced WDM-PON networks designs.

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Section: The Deployment Of Dwa Algorithms For Selected Wdm-pon Networ...mentioning

confidence: 99%

An Effective Evaluation of Wavelength Scheduling for Various WDM-PON Network Designs with Traffic Protection Provision

Róka

2021

Symmetry

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“…Multiwavelength lasers have been extensively used in the long-haul, metro, and access networks to provide high channel capacity, broadband wavelength switching and routing, and flexible bandwidth management and provisioning. [36][37][38][39][40][41] Even for relatively shorter distance links such as the optical interconnects in data centers, the optical transceivers (TRXs) need to incorporate multiple light sources to provide the ever-increasing data rates in a reduced module size as well as to meet the requirements of low latency and low power consumption. These applications pave an ideal path for employing WLAs in the optical TRXs.…”

Section: Optical Communications and Networkingmentioning

confidence: 99%

Wavelength division multiplexing laser arrays for applications in optical networking and sensing: Overview and perspectives

Lee

Pukhrambam

2018

Jpn. J. Appl. Phys.

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Wavelength division multiplexing (WDM) laser arrays (WLAs) can provide compact light sources for optical telecommunications, interconnections, switching, and optical sensing applications. The technologies to realize WLAs are reviewed and discussed with focus on wavelength registration and manufacturing complexity. WLAs can be realized in monolithic or hybrid integration approaches. The issues and challenges for applying monolithic or hybrid integration to realize WLAs will be discussed. The laser arrays based on hybrid laser structure and the silicon photonics foundry fabrication model will be highlighted.

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“…Non-return to zero (NRZ) scheme is used in the realization of the WDM-PON and shows the good result on fiber length of 20-100 km [8]. As compared to TDM PON technology, WDM-PON supports a large number of users and high data rates [9]. RSOA (Reflective Semiconductor Optical Amplifier) can be used in WDM-PON for better performance [10].A better result can also be obtained through Low pass Bessel filter in the WDM-PON system [11].…”

Section: Introductionmentioning

confidence: 99%

Designing of Novel Security Based WDM-Pon System by Using Broadband Light Source (Bls)

Thapar¹,

Sarangal

2017

ijarcs

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The Optical network plays an important role in the communication field because of its inherent benefits. It reduces capital and operational cost and also supports a wide range of new and high-bandwidth applications. The most effective and promising technique used in the Optical communication is WDM-PON (Wavelength division multiplexing passive optical network). WDM-PON provides relatively higher bandwidth security, high speed and makes communication reliable but security is the main issue on which various attempts are made to increase this security level in WDM-PON. In this paper, a 20 X 10 Gbps self-protected WDM-PON architecture is used to enhance the security level by using the Broadband light source (BLS). The results of this study show that physical security can be achieved through Broadband light source in which each frame is transmitted at a unique wavelength and secured data is obtained at the output. The Performance analysis is performed by using the Optisystem software.

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Next Generation Optical Access Networks: from TDM to WDM

Cited by 14 publications

References 32 publications

An Effective Evaluation of Wavelength Scheduling for Various WDM-PON Network Designs with Traffic Protection Provision

An Effective Evaluation of Wavelength Scheduling for Various WDM-PON Network Designs with Traffic Protection Provision

Wavelength division multiplexing laser arrays for applications in optical networking and sensing: Overview and perspectives

Designing of Novel Security Based WDM-Pon System by Using Broadband Light Source (Bls)

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