Evaluation of low complexity concatenated codes for high data rate transmission

Author

Nefedov, Nikolai

Author_Institution

Nokia Res. Center, Finland

Volume

2

fYear

2003

fDate

7-10 Sept. 2003

Firstpage

1868

Abstract

In this paper we compare low complexity turbo-like codes formed by differential encoders. A unified coding scheme combining turbo codes and parallel concatenated zigzag codes (PCZZ) and its multi-dimensional extension for packet re-transmission schemes in HSDPA/WCDMA is proposed. It is shown that low complexity PCZZ outperforms WCDMA turbo codes at high coding rates. Modified zigzag decoder and suggested simple stopping rule for PCZZ iterative decoding brings further complexity reduction without visible performance loss.

Keywords

broadband networks; code division multiple access; computational complexity; concatenated codes; data communication; iterative decoding; radio links; turbo codes; code division multiple access; concatenated codes; differential encoders; high data rate transmission; high speed downlink packet access; iterative decoding; packet retransmission schemes; parallel concatenated zigzag codes; turbo codes; unified coding scheme; Additive noise; Concatenated codes; Convolutional codes; Downlink; Inductors; Iterative decoding; Multiaccess communication; Performance loss; Turbo codes; Wireless communication;

fLanguage

English

Publisher

ieee

Conference_Titel

Personal, Indoor and Mobile Radio Communications, 2003. PIMRC 2003. 14th IEEE Proceedings on

Print_ISBN

0-7803-7822-9

Type

conf

DOI

10.1109/PIMRC.2003.1260440

Filename

1260440