On the FER performance and decoding complexity of turbo codes

Author

Yue, Chung-Wai ; Letaief, K.B. ; Cheng, Roger S. ; Murch, R.D.

Author_Institution

Dept. of Electr. & Electron. Eng., Hong Kong Univ. of Sci. & Technol., Kowloon, Hong Kong

Volume

3

fYear

1999

fDate

36342

Firstpage

2214

Abstract

Turbo codes have drawn much attention due to its remarkable error correcting capability in digital communication systems. However, its high decoding complexity and potential poor frame error rate (FER) are major problems in practical implementation. We present two algorithms for reducing the decoding complexity and the FER of turbo codes. Specifically, an adaptive iteration decoding algorithm is proposed by making use of cyclic redundancy check (CRC) bits for reducing the decoding complexity of turbo codes. In addition, a serial concatenated coding system is used to lower the FER of turbo codes. The simulation results demonstrate that a lower decoding complexity and a lower FER can be obtained by using the two proposed methods

Keywords

adaptive decoding; computational complexity; concatenated codes; convolutional codes; digital communication; error statistics; iterative decoding; turbo codes; FER performance; adaptive iteration decoding algorithm; cyclic redundancy check; decoding complexity reduction; digital communication systems; error correction; frame error rate; parallel concatenated recursive convolutional codes; serial concatenated coding system; simulation results; turbo codes; Bit error rate; Concatenated codes; Cyclic redundancy check; Error analysis; Error correction codes; Information technology; Iterative algorithms; Iterative decoding; Turbo codes; Viterbi algorithm;

fLanguage

English

Publisher

ieee

Conference_Titel

Vehicular Technology Conference, 1999 IEEE 49th

Conference_Location

Houston, TX

ISSN

1090-3038

Print_ISBN

0-7803-5565-2

Type

conf

DOI

10.1109/VETEC.1999.778454

Filename

778454