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Performance analysis of PUM codes

Nelson, C. and Stankovic, L. and Stankovic, Vladimir M. and Cheng, S. (2008) Performance analysis of PUM codes. In: 5th International Symposium on Turbo Codes and Related Topics. IEEE, pp. 260-265. ISBN 978-1-4244-2862-5

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Abstract

Partial unit memory (PUM) codes are low complexity, nonbinary, multimemory codes with competitive performance to standard recursive systematic convolutional (RSC) codes. We design turbo codes using parallel concatenation of two identical systematic recursive PUM codes and compare their performance to equivalent standard RSC-based turbo codes. Our analysis of extrinsic information transfer (EXIT) charts shows that the designed PUM-based turbo codes outperform equivalent standard turbo codes at the error-floor region, with comparable performance in the waterfall region. Simulated bit error rate (BER) performance curves of the two codes confirm the behavior predicted using EXIT charts. For example, our PUM-based turbo code design outperforms the standard Inmarsat turbo code by 0.5 dB for the same number of decoder iterations. Similarly, the UMTS standardized turbo code loses roughly 0.5 dB in the error-floor region compared to the PUM-based turbo code of same complexity.

Item type: Book Section
ID code: 12868
Keywords: concatenated codes, convolutional codes, error statistics, turbo codes, Electrical engineering. Electronics Nuclear engineering
Subjects: Technology > Electrical engineering. Electronics Nuclear engineering
Department: Faculty of Engineering > Electronic and Electrical Engineering
Related URLs:
    Depositing user: Strathprints Administrator
    Date Deposited: 20 Aug 2010 13:29
    Last modified: 17 Jul 2013 13:25
    URI: http://strathprints.strath.ac.uk/id/eprint/12868

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