Distributed Image Transmission Using Deep Joint Source-Channel Coding

We study the problem of deep joint source-channel coding (D-JSCC) for correlated image sources, where each source is transmitted through a noisy independent channel to the common receiver. In particular, we consider a pair of images captured by two cameras with probably overlapping fields of view tr...

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Vydáno v:Proceedings of the ... IEEE International Conference on Acoustics, Speech and Signal Processing (1998) s. 5208 - 5212
Hlavní autoři: Wang, Sixian, Yang, Ke, Dai, Jincheng, Niu, Kai
Médium: Konferenční příspěvek
Jazyk:angličtina
Vydáno: IEEE 23.05.2022
Témata:
Codes
Decoding
deep neural networks
Distributed joint source-channel coding
Image coding
Image communication
Noise measurement
Speech processing
Wireless communication
wireless image transmission
ISSN:2379-190X
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Shrnutí:We study the problem of deep joint source-channel coding (D-JSCC) for correlated image sources, where each source is transmitted through a noisy independent channel to the common receiver. In particular, we consider a pair of images captured by two cameras with probably overlapping fields of view transmitted over wireless channels and reconstructed in the center node. The challenging problem involves designing a practical code to utilize both source and channel correlations to improve transmission efficiency without additional transmission overhead. To tackle this, we need to consider the common information across two stereo images as well as the differences between two transmission channels. In this case, we propose a deep neural networks solution that includes lightweight edge encoders and a powerful center decoder. Besides, in the decoder, we propose a novel channel state information aware cross attention module to highlight the overlapping fields and leverage the relevance between two noisy feature maps. Our results show the impressive improvement of reconstruction quality in both links by exploiting the noisy representations of the other link. Moreover, the proposed scheme shows competitive results compared to the separated schemes with capacity-achieving channel codes.
ISSN:2379-190X
DOI:10.1109/ICASSP43922.2022.9746268