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Flattening effect of turbo codes under non-terminated conditions

Flattening effect of turbo codes under non-terminated conditions

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Published

A flattening effect is observed in turbo codes under non-terminated conditions. This effect can be effectively eliminated by changing the reading principle of turbo interleavers. An explanation of this effect is given. By removing the flattening effect, the performance difference between the terminated and non-terminated cases becomes marginal.

Inspec keywords: turbo codes; error statistics

Other keywords: turbo codes; bit error rates; flattening effect removal; nonterminated conditions; BER curves; turbo interleavers

Subjects: Information theory; Codes

References

    1. 1)
      • Berrou, C., Glavieux, A., Thitimajshima, P.: `Near Shannon limit error-correcting coding and decoding: Turbo codes', Proc. IEEE Int. Conf. Commun. (ICC), May 1993, Geneva, Switzerland, p. 1064–1070.
    2. 2)
      • Lin, L., Cheng, R.S.: `On the tail effect of SOVA-based decoding for turbo codes', IEEE GLOBECOM 97, Nov. 1997, Phoenix, USA, p. 644–648.
    3. 3)
      • H. Herzberg . Multilevel turbo coding with short interleavers. IEEE J. Sel. Areas Commun. , 2 , 303 - 309
http://iet.metastore.ingenta.com/content/journals/10.1049/el_19981645
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