Dynamic Bandwidth Allocation Algorithm for XG-PON with Traffic Monitoring and Intra-Scheduling

Han, Man‐Soo

doi:10.14257/astl.2015.108.15

Cited by 2 publications

(5 citation statements)

References 3 publications

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“…Although many studies on DBA methods have been conducted [3][4][5][6][7][8], most of them decided the transmission time based on the request transmitted from ONUs. In [3], a pipelined DBA method was introduced to reduce power consumption.…”

Section: Introductionmentioning

confidence: 99%

“…Service classes share one service pool, improving DBA performance. In [6], a DBA method was introduced for XG-PON system where ONU does not send a request to OLT. In [7], the DBA method of a system with multiple uplink channels was introduced.…”

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

“…All methods except [6] have limitations in improving upstream transmission performance because DBA is performed using only the request transmitted from ONU. [6] used a method of predicting traffic by measuring the usage of uplink bandwidth, but the DBA did not use the request transmitted from ONU. Since the physical maximum distance between ONU and OLT is 20 km, it takes time for DBA result of OLT to be delivered to ONU, and new packets can arrive at ONU during this time.…”

Section: Introductionmentioning

confidence: 99%

“…[5][6] and the size of each qij is 2 Mbyte. Also, in the case of T-CONT types 2 and 3, Sij = 1, and in the case of T-CONT type 4, Sij = 5.…”

mentioning

confidence: 99%

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Dynamic Band Allocation Method of XGS-PON System Using Time Sliding Window Traffic Prediction

Han¹

2021

APJCRI

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The dynamic bandwidth allocation (DBA) algorithm has the greatest impact on the system performance in a 10-Gbps-capable symmetric passive optical network (XGS-PON). Most DBA algorithms perform DBA using only transmission requests sent from optical network units (ONUs) to optical line termination (OLT). In this paper, a new method to improve the performance by predicting the packet arrival rate of ONU and by using the predicted value and the transmission request of ONU at the same time in DBA is introduced. After the first dynamic bandwidth allocation with the request, the second dynamic bandwidth allocation is performed with the remaining bandwidth and predicted packet length. A new prediction method is proposed by applying the time sliding window method to the packet arrival rate prediction. In the proposed method, instead of predicting the packet arrival rate whenever one packet arrives, the packet arrival rate is predicted in unit time. The computer simulation showed that the proposed method performs better in packet mean delay than a method without packet prediction and a method using aggressive packet prediction. In addition, the length of the sliding window that optimizes the packet arrival rate prediction performance under burst traffic conditions is determined through simulation.

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