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首页> 外文期刊>Information Theory, IEEE Transactions on >Joint Wyner–Ziv/Dirty-Paper Coding by Modulo-Lattice Modulation
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Joint Wyner–Ziv/Dirty-Paper Coding by Modulo-Lattice Modulation

机译:模-格调制的联合Wyner-Ziv /脏纸编码

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摘要

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 “shaping” 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.
机译:源代码与解码器辅助信息(Wyner-Ziv问题)和信道编码与编码器辅助信息(Gel''fand-Pinsker问题)的组合可以使用分离原理来最佳解决。在这项工作中,我们展示了二次高斯情况的一种替代方案,该方案融合了源编码和信道编码。该方案通过对模拟源应用模格调制来实现最佳性能。因此,它节省了量化和信道解码的复杂性,并且仅保留“整形”的任务。此外,对于高信噪比(SNR),该方案使用独立于SNR的编码器来接近最佳性能,因此证明了在这种特殊情况下通用联合信源-信道编码的可行性。

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