Anytime spatially coupled codes for relay channel
Date
2014
Authors
Noor, A.R.M.
Nguyen, D.K.
Lechner, G.
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Conference paper
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2014 Australian Communications Theory Workshop, AusCTW 2014, 2014, pp.39-44
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Australian Communications Theory Workshop (3 Feb 2014 - 5 Feb 2014 : Sydney, NSW, Australia)
Abstract
In this paper, we study linear anytime codes for the half duplex relay channel. We design anytime codes based on spatially coupled repeat-accumulate (SC-RA) codes. Through finite-length analysis and simulation results, we find that anytime SC-RA codes perform better than existing anytime codes. Furthermore, anytime SC-RA codes allow simple encoding compared to existing anytime spatially coupled low-density parity-check (LDPC) codes. Based on SC-RA codes, we design a bilayer anytime structure suitable for relaying networks with the decode-and-forward strategy. Using asymptotic analysis, we show that the proposed code structure achieves desired anytime properties.
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Copyright 2014 IEEE