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Shift-map codes have been studied as joint source-channel codes for continuous sources. These codes are useful in delay-limited scenarios and also provide better tolerance to deviations of the Signal-to-Noise Ratio (SNR) from a target SNR, compared to separate source and channel coding. This paper defines a generalized family of shift-map codes that share a strong connection with Redundant Residue Number Systems (RRNS), and are henceforth called RRNS-map codes. In the proposed coding scheme, side information about the source allows the decoder to consider only a fraction of the codebook for decoding, with no change in the encoding process.
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