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Entropy 2017, 19(11), 611; doi:10.3390/e19110611

Multilevel Coding for the Full-Duplex Decode-Compress-Forward Relay Channel

Department of Electrical & Computer Engineering, The University of Texas at Dallas, Richardson, TX 75080, USA
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Received: 14 August 2017 / Revised: 23 October 2017 / Accepted: 30 October 2017 / Published: 14 November 2017
(This article belongs to the Special Issue Multiuser Information Theory)
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Abstract

The Decode-Compress-Forward (DCF) is a generalization of Decode-Forward (DF) and Compress-Forward (CF). This paper investigates conditions under which DCF offers gains over DF and CF, addresses the problem of coded modulation for DCF, and evaluates the performance of DCF coded modulation implemented via low-density parity-check (LDPC) codes and polar codes. We begin by revisiting the achievable rate of DCF in discrete memoryless channels under backward decoding. We then study coded modulation for the decode-compress-forward via multi-level coding. We show that the proposed multilevel coding approaches the known achievable rates of DCF. The proposed multilevel coding is implemented (and its performance verified) via a combination of standard DVB-S2 LDPC codes, and polar codes whose design follows the method of Blasco-Serrano. View Full-Text
Keywords: decode-and-forward; compress-and-forward; multilevel coding decode-and-forward; compress-and-forward; multilevel coding
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Abotabl, A.A.; Nosratinia, A. Multilevel Coding for the Full-Duplex Decode-Compress-Forward Relay Channel. Entropy 2017, 19, 611.

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