Dynamic bandwidth allocation algorithms for improved throughput and latency performance in CDMA-based next-generation ethernet passive optical networks

Raad, Robert; Inaty, Elie; Maier, Martin

doi:10.1364/osac.2.003107

Cited by 10 publications

(6 citation statements)

References 15 publications

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“…1.E-1 1.E+0 when traffic reduces in a queue system with limited but enough capacity, and adapts much better to the input traffic needs. Here DVR increases when the proportion of BE traffic reduces due to the increased traffic flow variance and the high load and decreases when BE traffic load reaches the point where enough resources are available; note that the results are in line with those in [15] for Ethernet passive optical networks.…”

Section: A Cursa-sq Extensions Validationsupporting

confidence: 80%

Supporting Time-Sensitive and Best-Effort Traffic on a Common Metro Infrastructure

Velasco

Ruiz

2020

IEEE Commun. Lett.

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Considerable research and standardization efforts are being made to support time-sensitive traffic, e.g., generated by applications like Industry 4.0 and 5G fronthaul, on packet networks. This letter focuses on analyzing the impact of conveying time-sensitive traffic in operators' networks when such traffic is mixed with best-effort traffic. Extensions to a continuous / /1/ queue model are proposed to evaluate two different Ethernet technologies, synchronous and asynchronous, supporting time-sensitive flows in terms of their influence on the performance of best-effort traffic. Results highlight pros and cons of those technologies to protect best-effort performance.

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Section: A Cursa-sq Extensions Validationsupporting

confidence: 80%

Supporting Time-Sensitive and Best-Effort Traffic on a Common Metro Infrastructure

Velasco

Ruiz

2020

IEEE Commun. Lett.

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“…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]. For the Code Division Multiple Access (CDMA)-based passive optical networks with the tree topology where the network throughput and delay requirements per Optical Network Unit (ONU) are relatively moderate, an allocation algorithm based on round-robin scheduling is originally introduced in [26].…”

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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“…Many PON DBA algorithms have been proposed, such as in [3,[10][11][12][13][14][15][16][17][18][19][20][21][22][23][24][25][26][27], but there were only a few articles on GPON FSAN-compliant DBA algorithms which have been physically implemented, named as GigaPON access network (GIANT), immediate allocation colourless grant (IACG) and efficient bandwidth utilization (EBU) algorithms. GIANT [3] is the first physically implemented DBA algorithm which introduced a down counter for bandwidth allocation.…”

Section: Related Work On Dba Algorithmsmentioning

confidence: 99%

Dynamic bandwidth allocation algorithm for long reach passive optical network

2021

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Next generation broadband access networks are gaining more interests from many key players in this field. The demands for longer reach and higher bandwidth are among the driving factors for such network as it can reach wider area up to 100 km, even beyond; has enhanced bandwidth capacity and transmission speed, but with low cost and energy consumption. One promising candidate is long reach passive optical network, a simplified network with reduced number of network elements, equipment interfaces, and even nodes; which leads to a significant reduction in the network's capital expenditure and operational expenditure. Outcome of an extended reach often results in increased propagation delay of dynamic bandwidth allocation messages exchange between the optical line terminals and optical network units, leading to the degradations of bandwidth allocation and quality of service support. Therefore, an effective bandwidth allocation algorithm with appropriate service interval setup for a long reach network is proposed to ensure the delay is maintained under ITU-T G.987.1 standard requirement. An existing algorithm is improved in terms of service interval so that it can perform well beyond 100 km. Findings show that the improved algorithm can reduce the mean delay of high priority traffic classes for distance up to 140 km.

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Dynamic bandwidth allocation algorithms for improved throughput and latency performance in CDMA-based next-generation ethernet passive optical networks

Cited by 10 publications

References 15 publications

Supporting Time-Sensitive and Best-Effort Traffic on a Common Metro Infrastructure

Supporting Time-Sensitive and Best-Effort Traffic on a Common Metro Infrastructure

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

Dynamic bandwidth allocation algorithm for long reach passive optical network

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