QoS-Based DWBA Algorithm for NG-EPON

Rafiq, Ammar; Hayat, Muhammad Faisal

doi:10.3390/electronics8020230

Cited by 12 publications

(12 citation statements)

References 25 publications

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“…The article [16] deals with the next-generation Ethernet passive optical network (NG-EPON). These networks use optical distribution networks with wavelength sharing by ONUs; however, there are two different design architectures for NG-EPONs-the single scheduling domain (SSD) and multi-scheduling domain (MSD) ethernet passive optical network (EPON).…”

Section: Related Workmentioning

confidence: 99%

Efficiency Tests of DBA Algorithms in XG-PON

et al. 2019

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Sophisticated dynamic bandwidth allocation (DBA) algorithms can dramatically improve or worsen throughput and delay in whole networks. It is very important to choose the right DBA algorithm. Our work tests static assignment and three DBA algorithms, namely GigaPON Access Network DBA, Hybrid Reporting Allocation, and modified Max–Min Fair. All tests were made on our simulator of ten-gigabit passive optical network DBA specially developed for testing DBA algorithms. The tests verify delay of each optical network unit and amount of waste with bandwidth. This paper describes how the used DBA algorithms work and the processes involved in DBA algorithms.

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Section: Related Workmentioning

confidence: 99%

Efficiency Tests of DBA Algorithms in XG-PON

et al. 2019

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“…The optical fiber cable is shared by introducing passive optical splitters into the optical distribution network (ODN) located between the OLT and the ONUs, by which it reaches up to 64 users [6] (although some architectures allow split ratios of up to 1024 [7]). In the upstream direction, the splitter combines the upstream wavelengths from the ONUs to the OLT [8]. The PON architecture is referred to as a point-to-multipoint (P2MP) system [9].…”

Section: Introductionmentioning

confidence: 99%

A QoS-Aware Dynamic Bandwidth Allocation Algorithm for Passive Optical Networks with Non-Zero Laser Tuning Time

et al. 2021

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The deployment of new 5G services and future demands for 6G make it necessary to increase the performance of access networks. This challenge has prompted the development of new standardization proposals for Passive Optical access Networks (PONs) that offer greater bandwidth, greater reach and a higher rate of aggregation of users per fiber, being Time- and Wavelength-Division Multiplexing (TWDM) a promising technological solution for increasing the capacity by up to 40 Gbps by using several wavelengths. This solution introduces tunable transceivers into the Optical Network Units (ONUs) for switching from one wavelength to the other, thus addressing the ever-increasing bandwidth demands in residential broadband and mobile fronthaul networks based on Fiber to the Home (FTTH) technology. This adds complexity and sources of inefficiency, such as the laser tuning time (LTT) delay, which is often ignored when evaluating the performance of Dynamic Bandwidth Allocation (DBA) mechanisms. We present a novel DBA algorithm that dynamically handles the allocation of bandwidth and switches the ONUs’ lasers from one wavelength to the other while taking LTT into consideration. To optimize the packet delay, we introduce a scheduling mechanism that follows the Longest Processing Time first (LPT) scheduling discipline, which is implemented over the Interleaved Polling with Adaptive Cycle Time (IPACT) DBA. We also provide quality of service (QoS) differentiation by introducing the Max-Min Weighted Fair Share Queuing principle (WFQ) into the algorithm. The performance of our algorithm is evaluated through simulations against the original IPACT algorithm, which we have extended to support multi-wavelengths. With the introduction of LPT, we obtain an improved performance of up to 73% reduction in queue delay over IPACT while achieving QoS differentiation with WFQ.

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“…NG-EPON can provide powerful capabilities that would help ISPs to meet the unprecedented requirements being provided through their networks. NG-EPON could broader covered/engaged area and enhance data transferring speed [9]. It could also provide reliable and preventive communication as compared to legacy EPON.…”

Section: Introductionmentioning

confidence: 99%

Efficient bandwidth management algorithm for NG-EPON

Rafiq¹,

Hayat²

2020

Turk J Elec Eng & Comp Sci

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Next generation ethernet passive optical network (NG-EPON) is a promising technology to cater huge bandwidth and efficient distribution demands of the future Internet services. IEEE working group has been doing efforts for the standardization of NG-EPON. Four wavelength channels of 25Gbps each are supported by NG-EPON for the transmission of optical network unit (ONU) traffic towards optical line terminal (OLT). Dynamic wavelength and bandwidth allocation (DWBA) algorithms are needed for the efficient arbitration of bandwidth resources between subscribers. In this paper, we have proposed a DWBA algorithm named as efficient bandwidth management algorithm (EBMA) for NG-EPON. EBMA has been designed to manage the diversified traffic requirements of different ONUs.EBMA performance is evaluated comparatively with modified IPACT (M-IPACT) and first fit (FF-DWBA) algorithms.EBMA for NG-EPON proves to be better on the basis of packet delay, packet drop ratio and grant utilization. Simulation results showed improved performance of EBMA in comparison with M-IPACT and FF-DWBA algorithms.

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QoS-Based DWBA Algorithm for NG-EPON

Cited by 12 publications

References 25 publications

Efficiency Tests of DBA Algorithms in XG-PON

Efficiency Tests of DBA Algorithms in XG-PON

A QoS-Aware Dynamic Bandwidth Allocation Algorithm for Passive Optical Networks with Non-Zero Laser Tuning Time

Efficient bandwidth management algorithm for NG-EPON

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