Research on Wavelength Algorithm for Cross-Layer Routing in Software Defi ned Satellite Optical Network

Hai LI; Shanghong ZHAO; Yongjun LI; Cong PENG

doi:10.11959/j.issn.2096-8930.2021033

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Research on Wavelength Algorithm for Cross-Layer Routing in Software Defi ned Satellite Optical Network

Study | 更新时间：2024-06-03

- Research on Wavelength Algorithm for Cross-Layer Routing in Software Defi ned Satellite Optical Network
- Space-Integrated-Ground Information Networks Vol. 2, Issue 3, Pages: 76-80(2021)
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- DOI：10.11959/j.issn.2096-8930.2021033
  CLC： TP393
- Published Online：2021-09，
  
  Published：20 September 2021
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Hai LI, Shanghong ZHAO, Yongjun LI, et al. Research on Wavelength Algorithm for Cross-Layer Routing in Software Defi ned Satellite Optical Network[J]. Space-integrated-ground information networks, 2021, 2(3): 76-80.
DOI：

Hai LI, Shanghong ZHAO, Yongjun LI, et al. Research on Wavelength Algorithm for Cross-Layer Routing in Software Defi ned Satellite Optical Network[J]. Space-integrated-ground information networks, 2021, 2(3): 76-80. DOI： 10.11959/j.issn.2096-8930.2021033.

摘要

针对卫星网络管理及维护难度大和大容量数据传输的迫切需求，提出一种基于蚁群算法的软件定义卫星光网络跨层波长路由算法（SDNCL-RWA）。该算法将时延和可用波长率作为启发函数，并设计一种两阶段的跨层波长路由机制来减少路由跳数和网络阻塞率，首先在LEO卫星单层网络中路由，当路由失败或者路由跳数过高时借助MEO卫星网络路由。在软件定义卫星光网络架构下进行仿真，结果表明SDNCL-RWA算法比传统的Dijkstra+FF（First Fit）算法和波长路由蚁群算法（ACO+FF）在网络阻塞率和路由平均跳数这两方面有明显的改善。

Abstract

In response to the difficulty of satellite network management and maintenance and the urgent need for large-capacity data transmission

a software-defi ned satellite optical network cross-layer wavelength routing algorithm based on ant colony algorithm (SDNCLRWA) was proposed.The algorithm took delay and available wavelength rate as heuristic functions

and designed a two-stage cross-layer wavelength routing mechanism to reduced routing hops and network congestion rate.First

it was routed in the LEO satellite single-layer network.The MEO satellite network was used for routing only when the routing fails or the routing hop count was too high.The simulation was carried out under the software-defi ned satellite optical network architecture and the results showed that the SDNCL-RWA algorithm proposed was better than the traditional Dijkstra+FF algorithm and the wavelength routing ant colony algorithm (ACO+FF) in terms of network blocking rate and average routing hops.

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references

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