Load-Balancing Method for LEO Satellite Edge-Computing Networks Based on the Maximum Flow of Virtual Links

Wang, Yuqi; Che, Jibin; Wang, Ningyuan; Liu, Liang; Wu, Nan; Zhong, Xin; Han, Xiaotao

doi:10.1109/access.2022.3207293

“…OneWeb [9], have attracted much attention. With the help of laser communication development, data transmission optimization through inter-layer and intra-layer links has become a hot topic [10]- [13]. On this issue, research efforts have been undertaken in two aspects.…”

Section: Introductionmentioning

confidence: 99%

Task-Aware Distributed Inter-Layer Topology Optimization Method in Resource-Limited LEO-LEO Satellite Networks

Guo¹,

Liu²,

Zhong³

2023

Preprint

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<p>Due to the increasing demand for real-time observation data, remote-sensing satellites can be considered as users to access mega communication constellations, which can constitute a Low Earth Orbit (LEO) Double-Layered Satellite Network (DLSN) composed of Remote-sensing Layer Satellites (RLSs) and Communication Layer Satellites (CLSs). In this LEO DLSN, a Distributed Inter-Layer Topology Optimization (DITO) method is proposed based on time-space relationships between two layers, which can maximize task-aware observation benefits with limited onboard resources. For practical purposes, we take link switching interval constraints into account for the recapture and track of laser communicators. Besides, we put forward a new time-slot division method based on the link switching interval for the linear modeling of the time-sequential coupling problem. With the simulation results in four constellation systems, the proposed distributed interactive method can obtain an optimal solution close to the centralized global solution with much less time. Simulation analysis indicates that the work of this paper can support onboard optimization for future space networks.</p>

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“…OneWeb [9], have attracted much attention. With the help of laser communication development, data transmission optimization through inter-layer and intra-layer links has become a hot topic [10]- [13]. On this issue, research efforts have been undertaken in two aspects.…”

Section: Introductionmentioning

confidence: 99%

Task-Aware Distributed Inter-Layer Topology Optimization Method in Resource-Limited LEO-LEO Satellite Networks

Guo¹,

Liu²,

Zhong³

2023

Preprint

0

View full text Add to dashboard Cite

<p>Due to the increasing demand for real-time observation data, remote-sensing satellites can be considered as users to access mega communication constellations, which can constitute a Low Earth Orbit (LEO) Double-Layered Satellite Network (DLSN) composed of Remote-sensing Layer Satellites (RLSs) and Communication Layer Satellites (CLSs). In this LEO DLSN, a Distributed Inter-Layer Topology Optimization (DITO) method is proposed based on time-space relationships between two layers, which can maximize task-aware observation benefits with limited onboard resources. For practical purposes, we take link switching interval constraints into account for the recapture and track of laser communicators. Besides, we put forward a new time-slot division method based on the link switching interval for the linear modeling of the time-sequential coupling problem. With the simulation results in four constellation systems, the proposed distributed interactive method can obtain an optimal solution close to the centralized global solution with much less time. Simulation analysis indicates that the work of this paper can support onboard optimization for future space networks.</p>

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DRL-assisted task offloading in enhanced time-expanded graph (eTEG)-modeled aerial computing

Mo,

Zhao,

Peng

et al. 2024

Computer Communications

0

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Load-Balancing Method for LEO Satellite Edge-Computing Networks Based on the Maximum Flow of Virtual Links

Cited by 10 publications

References 26 publications

Task-Aware Distributed Inter-Layer Topology Optimization Method in Resource-Limited LEO-LEO Satellite Networks

Task-Aware Distributed Inter-Layer Topology Optimization Method in Resource-Limited LEO-LEO Satellite Networks

Task-Aware Distributed Inter-Layer Topology Optimization Method in Resource-Limited LEO-LEO Satellite Networks

DRL-assisted task offloading in enhanced time-expanded graph (eTEG)-modeled aerial computing

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