Abstract
A joint source-channel coding (JSCC) scheme based on adaptive wavelet pretreatment for robust progressive image transmission over wireless fading channels using MIMO-OFDM was proposed. We pointed out that he peak signal to noise ratio (PSNR) of the reconstructed image degrades a little while the complexity decreases sharply when adding pretreatment block before DWT. On the other hand, OFDM can get good performance in the frequency selective fading channel. So in this paper, a JSCC scheme based on adaptive wavelet pretreatment for image transmission over MIMO-OFDM system was analyzed. What‘s more, the wavelet pretreatment block is loaded adaptively according to the channel condition. Simulation shows that: after adding the pretreatment block before DWT and post-treatment to the reconstructed image in good channel condition, the complexity of the SPIHT and the channel coder decreases sharply due to the compression ratio, but the PSNR of the receivedimage loses only a little; when the channel condition is getting worse ,the pretreatment block is deleted accordingly.
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© 2006 Springer-Verlag Berlin Heidelberg
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Guo, R., Liu, Jl. (2006). Joint Source-Channel Coding Based on Adaptive Wavelet Pretreatment for Image Transmission over Frequency Selective Fading Channel. In: Wang, TD., et al. Simulated Evolution and Learning. SEAL 2006. Lecture Notes in Computer Science, vol 4247. Springer, Berlin, Heidelberg. https://doi.org/10.1007/11903697_117
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DOI: https://doi.org/10.1007/11903697_117
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-540-47331-2
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