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arXiv · 1812.11584

Successive Wyner-Ziv Coding for the Binary CEO Problem under Logarithmic Loss

Mahdi Nangir·Reza Asvadi·Jun Chen·Mahmoud Ahmadian-Attari·Tad Matsumoto
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Abstract

The $L$-link binary Chief Executive Officer (CEO) problem under logarithmic loss is investigated in this paper. A quantization splitting technique is applied to convert the problem under consideration to a $(2L-1)$-step successive Wyner-Ziv (WZ) problem, for which a practical coding scheme is proposed. In the proposed scheme, low-density generator-matrix (LDGM) codes are used for binary quantization while low-density parity-check (LDPC) codes are used for syndrome generation; the decoder performs successive decoding based on the received syndromes and produces a soft reconstruction of the remote source. The simulation results indicate that the rate-distortion performance of the proposed scheme can approach the theoretical inner bound based on binary-symmetric test-channel models.

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Mahdi Nangir, Reza Asvadi, Jun Chen, Mahmoud Ahmadian-Attari, Tad Matsumoto. 2019-05-27. Successive Wyner-Ziv Coding for the Binary CEO Problem under Logarithmic Loss. https://arxiv.org/abs/1812.11584

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