학술논문

Acoustic Channel-aware Autoencoder-based Compression for Underwater Image Transmission
Document Type
Conference
Source
2022 Sixth Underwater Communications and Networking Conference (UComms) Underwater Communications and Networking Conference (UComms), 2022 Sixth. :1-5 Aug, 2022
Subject
Communication, Networking and Broadcast Technologies
Fields, Waves and Electromagnetics
Photonics and Electrooptics
Signal Processing and Analysis
Fading channels
Underwater communication
Image coding
Image communication
Machine learning
Propagation losses
Energy efficiency
Language
ISSN
2770-758X
Abstract
Image transmission in Underwater Internet of Things (UW IoT) is a challenging problem due to the characteristic low bandwidth and variable path loss of the underwater acoustic channel. However, to enable intelligent and collaborative exploration of the underwater environment, such a communication is of paramount importance. To address such challenges, a reliable and energy-efficient Machine Learning (ML)-based underwater image transmission system is proposed where images are compressed using a data-based approach and robust compression codes are learned. The system uses an Autoencoder (AE) to enable intelligent, data-driven selection of coding parameters. The AE is evaluated in the presence of underwater acoustic fading channel information to achieve efficient and robust image transmission, and is compared against model-based approaches.