A superorthogonal turbo-code for CDMA applications

Author

Pehkonen, Kari ; Komulainen, Petri

Author_Institution

Res. & Dev., Nokia Mobile Phones, Oulu

Volume

2

fYear

1996

fDate

22-25 Sep 1996

Firstpage

580

Abstract

Turbo-codes are parallel concatenated convolutional codes (PCCC) whose performance in the AWGN channel has been shown to be near the Shannon limit. In fact in simulations for long interleaver length (N=16384) BER of 10^-3 at E_b/N₀=-0.15 dB have been achieved. In this paper we present a new low rate superorthogonal turbo-code that can perform even better than the ordinary turbo-code at the expense of bandwidth expansion. Thus superorthogonal turbo-codes are suited mainly for, for example, CDMA applications

Keywords

Gaussian channels; channel coding; code division multiple access; concatenated codes; convolutional codes; interleaved codes; pseudonoise codes; spread spectrum communication; AWGN channel; BER; CDMA applications; Shannon limit; bandwidth expansion; bit error rate; long interleaver length; low rate code; parallel concatenated convolutional codes; superorthogonal turbo-code; AWGN channels; Bandwidth; Bit error rate; Concatenated codes; Convolutional codes; Iterative decoding; Mobile handsets; Multiaccess communication; Polynomials; Turbo codes;

fLanguage

English

Publisher

ieee

Conference_Titel

Spread Spectrum Techniques and Applications Proceedings, 1996., IEEE 4th International Symposium on

Conference_Location

Mainz

Print_ISBN

0-7803-3567-8

Type

conf

DOI

10.1109/ISSSTA.1996.563193

Filename

563193