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On reconstructing linear combinations of correlated gaussian sources over a MAC

Ghasemi Goojani, S ; Sharif University of Technology | 2016

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  1. Type of Document: Article
  2. DOI: 10.1109/LCOMM.2016.2610961
  3. Publisher: Institute of Electrical and Electronics Engineers Inc , 2016
  4. Abstract:
  5. In this letter, we study the joint source-channel coding problem of communicating the linear functions of correlated Gaussian sources over a Gaussian multiple access channel. In this setup, each transmitter observes one of two correlated sources. The receiver aims to reconstruct a linear combination of both correlated Gaussian sources within an average distortion level. For this setup, we first obtain a new lower bound on the achievable distortion and then, we propose a novel lattice-based hybrid transmission scheme and its achievable distortion is derived. We show that our proposed scheme can achieve the optimal distortion under some conditions
  6. Keywords:
  7. Correlated Gaussian sources ; Gaussian multiple access channel ; Channel coding ; Codes (symbols) ; Communication channels (information theory) ; Mean square error ; Transmissions ; Gaussian multiple-access channels ; Gaussian sources ; Joint source-channel coding ; Lattice codes ; Mean-squared-error distortion ; Gaussian distribution
  8. Source: IEEE Communications Letters ; Volume 20, Issue 12 , 2016 , Pages 2450-2453 ; 10897798 (ISSN)
  9. URL: http://ieeexplore.ieee.org/document/7571165