Turbo Receiver for DS-SS Systems Employing Parity Bit Selected Spreading Codes

Author

Mirzaee, Alireza ; Amours, Claude D.

Author_Institution

Sch. of Electr. Eng. & Comput. Sci., Univ. of Ottawa, Ottawa, ON, Canada

Volume

16

Issue

4

fYear

2012

fDate

4/1/2012 12:00:00 AM

Firstpage

426

Lastpage

428

Abstract

In this paper a turbo receiver for direct sequence spread spectrum (DS-SS) systems employing parity bit selected spreading code (SS-PB) is proposed where detection and decoding are performed iteratively for each detected bit in the receiver. In SS-PB systems, parity bits generated by a linear block encoder are used to select a spreading code from a set of orthogonal spreading sequences. Performance evaluation in both additive white Gaussian noise (AWGN) and fading channels show a significant reduction in bit error rates (BER) when a turbo receiver is used in these systems.

Keywords

AWGN; decoding; error statistics; fading channels; parity check codes; receivers; signal detection; turbo codes; AWGN; BER; DS-SS systems; SS-PB; additive white Gaussian noise; bit error rates; code spreading; decoding; detection; direct sequence spread spectrum; fading channels; linear block encoder; orthogonal spreading sequences; parity bit selected spreading codes; parity bits; turbo receiver; Bit error rate; Decoding; Detectors; Encoding; Fading; Impedance matching; Receivers; Spread spectrum communications; error control coding; turbo receiver;

fLanguage

English

Journal_Title

Communications Letters, IEEE

Publisher

ieee

ISSN

1089-7798

Type

jour

DOI

10.1109/LCOMM.2012.020212.112560

Filename

6150659