Scalable Data Transmission Framework for Earth Observation Satellites with Channel Adaptation

Fuente: arXiv
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Autori principali: Bui, Van-Phuc, Pandey, Shashi Raj, Leyva-Mayorga, Israel, Popovski, Petar
Natura: Preprint
Pubblicazione: 2024
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author Bui, Van-Phuc
Pandey, Shashi Raj
Leyva-Mayorga, Israel
Popovski, Petar
author_facet Bui, Van-Phuc
Pandey, Shashi Raj
Leyva-Mayorga, Israel
Popovski, Petar
contents The immense volume of data generated by Earth observation (EO) satellites presents significant challenges in transmitting it to Earth over rate-limited satellite-to-ground communication links. This paper presents an efficient downlink framework for multi-spectral satellite images, leveraging adaptive transmission techniques based on pixel importance and link capacity. By integrating semantic communication principles, the framework prioritizes critical information, such as changed multi-spectral pixels, to optimize data transmission. The process involves preprocessing, assessing pixel importance to encode only significant changes, and dynamically adjusting transmissions to match channel conditions. Experimental results on the real dataset and simulated link demonstrate that the proposed approach ensures high-quality data delivery while significantly reducing number of transmitted data, making it highly suitable for satellite-based EO applications.
format Preprint
id arxiv_https___arxiv_org_abs_2412_11857
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle Scalable Data Transmission Framework for Earth Observation Satellites with Channel Adaptation
Bui, Van-Phuc
Pandey, Shashi Raj
Leyva-Mayorga, Israel
Popovski, Petar
Signal Processing
The immense volume of data generated by Earth observation (EO) satellites presents significant challenges in transmitting it to Earth over rate-limited satellite-to-ground communication links. This paper presents an efficient downlink framework for multi-spectral satellite images, leveraging adaptive transmission techniques based on pixel importance and link capacity. By integrating semantic communication principles, the framework prioritizes critical information, such as changed multi-spectral pixels, to optimize data transmission. The process involves preprocessing, assessing pixel importance to encode only significant changes, and dynamically adjusting transmissions to match channel conditions. Experimental results on the real dataset and simulated link demonstrate that the proposed approach ensures high-quality data delivery while significantly reducing number of transmitted data, making it highly suitable for satellite-based EO applications.
title Scalable Data Transmission Framework for Earth Observation Satellites with Channel Adaptation
topic Signal Processing
url https://arxiv.org/abs/2412.11857