Joint Wyner-Ziv/Dirty-Paper Coding by Modulo-Lattice Modulation
Author(s)
Kochman, Yuval; Zamir, Ram
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The combination of source coding with decoder side information (the Wyner-Ziv problem) and channel coding with encoder side information (the Gel'fand-Pinsker problem) can be optimally solved using the separation principle. In this work, we show an alternative scheme for the quadratic-Gaussian case, which merges source and channel coding. This scheme achieves the optimal performance by applying a modulo-lattice modulation to the analog source. Thus, it saves the complexity of quantization and channel decoding, and remains with the task of ldquoshapingrdquo only. Furthermore, for high signal-to-noise ratio (SNR), the scheme approaches the optimal performance using an SNR-independent encoder, thus it proves for this special case the feasibility of universal joint source-channel coding.
Date issued
2009-10Department
Massachusetts Institute of Technology. Research Laboratory of Electronics; Massachusetts Institute of Technology. Signals, Information and Algorithms LaboratoryJournal
IEEE Transactions on Information Theory
Publisher
Institute of Electrical and Electronics Engineers
Citation
Kochman, Y., and R. Zamir. “Joint Wyner–Ziv/Dirty-Paper Coding by Modulo-Lattice Modulation.” Information Theory, IEEE Transactions on 55.11 (2009): 4878-4889. © 2009 IEEE
Version: Final published version
ISSN
0018-9448