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—Variable length codes (VLCs), used in data compression , are very sensitive to error propagation in the presence of noisy channels. To address this problem, several joint source-channel turbo techniques have been proposed in the literature. In this paper, we focus on pairs of source/VLC of low redundancy, i.e., when there is a good match between the source(More)
— The principles which have been prevailing so far for designing communication systems rely on Shannon's source and channel coding separation theorem [1]. This theorem states that source and channel optimum performance bounds can be approached as close as desired by designing independently the source and channel coding strategies. However, this theorem(More)
— A new joint source-channel (JSC) turbo-decoding scheme, with three soft-in/soft-out (SISO) modules, is presented for variable length coded sources protected by a turbo-code. This new scheme offers the advantage to combine the powerfulness of the used turbo-code with the robustness of the reversible variable length codes (VLC), and moreover with a decoding(More)
—When a telecommunication system is constrained in terms of delay and complexity, it is usually wise to allow some cross-layer cooperation between the source and channel layers. In this context, the success of joint source-channel turbo techniques has been attested several times in the literature, in particular to transmit variable length code (VLC) streams(More)
—Variable length codes (VLCs), used in data compression , are very sensitive to error propagation in the presence of noisy channels. Addressing this problem with joint source-channel turbo techniques has been proposed in the literature and looks quite promising. But to date, most code-related conclusions are based on simulations. This paper states and(More)
—We address the problem of distributed source coding of binary sources with side information at the decoder. We propose a compression scheme using irregular turbo codes. We optimize them by maximizing the distance between the two curves of their EXIT charts for given statistics and a compression rate close to the Slepian-Wolf limit in order to increase the(More)
Recommended by Athanasios Rontogiannis Joint source-channel turbo techniques have recently been explored a lot in literature as one promising possibility to lower the end-to-end distortion, with fixed length codes, variable length codes, and (quasi) arithmetic codes. Still, many issues remain to be clarified before production use. This short contribution(More)