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Spatially Coupled Repeat-Accumulate Codes (1110.6787v1)
Published 31 Oct 2011 in cs.IT and math.IT
Abstract: In this paper we propose a new class of spatially coupled codes based on repeat-accumulate protographs. We show that spatially coupled repeat-accumulate codes have several advantages over spatially coupled low-density parity-check codes including simpler encoders and slightly higher code rates than spatially coupled low-density parity-check codes with similar thresholds and decoding complexity (as measured by the Tanner graph edge density).