Turbo-SPC codes

Author

Ping, Li

Author_Institution

Dept. of Electron. Eng., City Univ. of Hong Kong, China

Volume

49

Issue

5

fYear

2001

fDate

5/1/2001 12:00:00 AM

Firstpage

754

Lastpage

759

Abstract

This letter is concerned with a family of modified turbo-type codes, referred to as turbo-SPC (single parity check) codes. A technique based on the SPC code is introduced to replace puncturing for rate adjustment. A noticeable feature of the proposed scheme is the significantly reduced decoding complexity compared with the standard punctured turbo code. The cost reduction factor becomes more noticeable as rate increases (over ten times for rate →1). The error-rate floor problem known to turbo codes can also be improved using the proposed scheme. For moderate to high rates, performances of about 0.5 dB from the theoretical limits at BER=10^-5 have been observed for turbo-SPC codes

Keywords

binary codes; computational complexity; concatenated codes; convolutional codes; decoding; interleaved codes; turbo codes; cost reduction factor; decoding complexity reduction; error-rate floor problem; turbo codes; turbo-SPC codes; turbo-single parity check codes; Code standards; Communications Society; Concatenated codes; Convolutional codes; Costs; Error correction codes; Helium; Iterative decoding; Parity check codes; Turbo codes;

fLanguage

English

Journal_Title

Communications, IEEE Transactions on

Publisher

ieee

ISSN

0090-6778

Type

jour

DOI

10.1109/26.923796

Filename

923796