Priority-based mode transformation algorithm in a multisystem-based virtual passive optical network
| Autor: | Chaoqin Gan, Weilun Xie, Liya Tong, Xingdi Wang |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
Bandwidth management
Computer Networks and Communications Computer science Model transformation Virtualization computer.software_genre Network topology Passive optical network Transformation (function) Knapsack problem Bandwidth (computing) Electrical and Electronic Engineering computer Algorithm computer.programming_language |
| Zdroj: | Optical Switching and Networking. 31:162-167 |
| ISSN: | 1573-4277 |
| DOI: | 10.1016/j.osn.2018.10.009 |
| Popis: | With the development of passive optical network, different standards will occur in the same network topology. Virtualization technology is a preferable solution for multi-standard coexistence. In this paper, priority-based mode transformation algorithm is proposed for cross-standard bandwidth management in multisystem-based virtual passive optical network (VPON) in metro-access optical network (MAON). It is aimed to improve the fairness between priority services as well as the utilization of network resources. According to service lever agreement (SLA), priority services are divided into three categories: Expedited Forwarding (EF), Assured Forwarding (AF) and Best Effort (BE). For the first time, a model transformation scenario that requires consideration of priority is analyzed. Under the model transformation scenario, multi-dimension 0/1 knapsack models of the priority-based mode transformation algorithm are established. By solving the model, an optimal combination of ONUs for mode transformation can be found. Finally, the simulation shows that the priority-based mode transformation algorithm and the single ONU mode transformation algorithm differ in the amount of each service’s transformation bandwidth. It further demonstrates the contribution of the proposed algorithm in fairness. |
| Databáze: | OpenAIRE |
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