A dynamic optical network units slicing algorithm for centralized flexible time- and wavelength-division multiplexing passive optical network

Li, Shixuan; Tian, Qinghua; Wan, Fu; Xin, Xiangjun; Zhang, Qi; Wang, Yongjun; Tian, Feng; Yang, Leijing

doi:10.1109/icocn53177.2021.9563696

Cited by 1 publication

(5 citation statements)

References 7 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Considering the application of the actual scenario, this paper conducts a simulation based on the P2P communication model, and chooses the BA scale-free network which is closest to the actual complex network as the basic network model. In this section, the proposed DRA in this paper, DGA in [20], and DONUSA in [21] are simulated and their performance is compared. In view of the clustering characteristics of nodes, the Clustering Coefficient (CC) of the network is set at 0.4 in the generation of network.…”

Section: Results and Analysismentioning

confidence: 99%

“…This study mainly focuses on network slicing technology on large campuses with multi-OLT centralized deployment. In order to make full use of the exchange capability of OLTs and relieve the traffic pressure of the access network, there have been some excellent studies [20,21]. Zhang et al proposed a dynamic optical network units (ONUs) grouping algorithm (DGA) based on centralized flexible PON to reduce the outbound traffic of optical line terminals (OLTs) and relieve the traffic pressure of the core network.…”

Section: Introductionmentioning

confidence: 99%

“…However, DGA does not make further selection when the node switch gain is equal to 0 in each graph cutting, which will affect the subsequent graph cutting and may miss some better results. Therefore, another dynamic ONU slicing algorithm (DONUSA) was proposed in [21], which not only achieves a better traffic gain in the case of a large number of OLTs and ONUs under each OLT, but also has lower complexity. However, the performance of DONUSA is affected by the number of devices.…”

Section: Introductionmentioning

confidence: 99%

“…The performance of DONUSA fluctuates when the number of nodes in the initial subgraph is too small [21]. In order to better compare the performance of the three algorithms, the number of nodes (K) in each subgraph is increased from four.…”

mentioning

confidence: 99%

“…You might notice that DRA achieves a much higher performance than DONUSA in the first experiment, this is because when N = 32, M = 8 or N = 64, M = 16, the number of nodes in each subgraph (K) is only 4 and DONUSA is greatly affected by the randomness of initialization when the number of nodes in each subgraph is small. Only with the increase in the number of ONUs can the performance of DONUSA be gradually stabilized [21].…”

mentioning

confidence: 99%

See 4 more Smart Citations

A Dynamic Restructuring Algorithm Based on Flexible PON Slices

Tian

Wang

et al. 2023

Photonics

Self Cite

View full text Add to dashboard Cite

In recent years, with the introduction of the concept of the Internet of Things, a large number of terminals connected to the network, the pressure of network bandwidth is increasing. The bandwidth resources wasted by the traditional fixed access network architecture have attracted more and more attention of researchers. In order to meet the different needs of different users for service quality and improve the flexibility of network, network slicing technology arises at the right moment. Based on the slicing idea of the flexible time- and wavelength-division multiplexing passive optical network (TWDM-PON), a dynamic PON slice restructuring algorithm (DRA) is proposed in this paper. The proposed algorithm avoids the influence of previous slicing on subsequent slicing in the step-by-step slicing process, slices at the global level, and is less affected by the randomness of initialization. The simulation results show that the performance of DRA is about 10~30% higher than that of the dynamic optical network units (ONUs) grouping algorithm (DGA) and the dynamic ONU slicing algorithm (DONUSA) when there are 8 OLTs, and is about 30% higher than that of DGA and 10% higher than that of DONUSA when there are 16 OLTs. Therefore, the proposed DRA has more positive significance to relieve the traffic pressure in the increasingly tight bandwidth resources.

show abstract

Section: Results and Analysismentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

mentioning

confidence: 99%

mentioning

confidence: 99%

See 3 more Smart Citations