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Evaluation of Analog Encoding for Multi-User Wireless Transmission of Still Images | IEEE Conference Publication | IEEE Xplore

Evaluation of Analog Encoding for Multi-User Wireless Transmission of Still Images


Abstract:

In this paper, we present an analog system to transmit still images over multiuser wireless channels and an empirical comparison with a representative digital scheme. The...Show More

Abstract:

In this paper, we present an analog system to transmit still images over multiuser wireless channels and an empirical comparison with a representative digital scheme. The tests were carried out considering a multiple access channel (MAC) where two single-antenna users transmit their images to a two-antennas centralized receiver. The analog system encodes the source images using analog joint source-channel coding (JSCC) mappings and the resulting symbols are packed into an orthogonal frequency-division multiplexing (OFDM) frame. The quality of the analog received image is evaluated with the structural similarity (SSIM) and a digital image with the same quality is generated, which is encoded into an OFDM frame and transmitted over the same channel estimated as the analog one. The aim of this work is to compare the transmission times of the two systems and evaluate the suitability of the analog encoding techniques for the transmission of still images.
Date of Conference: 02-06 September 2019
Date Added to IEEE Xplore: 18 November 2019
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Conference Location: A Coruna, Spain

References

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