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Partial-unit memory based turbo codes

Nelson, C. and Stankovic, L. and Honary, B. (2009) Partial-unit memory based turbo codes. Electronics Letters, 45 (21). 1081-U38. ISSN 0013-5194

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The performance of partial unit memory-based turbo codes (PUM-TC) with standard convolutional-based turbo codes (RSC-TC) are analysed and compared. Resulting extrinsic information transfer charts indicate that the proposed PUM-based codes have higher mutual information during iterative decoding than the equivalent RSC-TC for the same SNR, i.e. the output of the decoders provides a better approximation of the decoded bits. It is shown that the PUM-TC outperforms known equivalent RSC-TC at the error-floor region, with comparable performance in the waterfall region.