Turbo-Coded Cooperative Diversity for CDMA System

Author

Neo, Han Kiat ; Ng, Soon Xin

Author_Institution

Sch. of Electron. & Comput. Sci., Univ. of Southampton, Southampton, UK

fYear

2010

fDate

23-25 Sept. 2010

Firstpage

1

Lastpage

5

Abstract

In this contribution we study a range of turbo-coded cooperative diversity schemes in the context of a Code Division Multiple Access (CDMA) system. The cooperative diversity architectures considered are the Amplify-and-Forward (AF), Decode-and-Forward (DF) and Soft Relay (SR) schemes. We derived the soft-decision metric for the turbo decoder based on the Minimum Mean Square Error (MMSE) detection when considering the AF, DF and SR schemes. The effect of the relay position on the cooperative diversity system performance was studied. It was found that the AF-based turbo-coded CDMA system is the most attractive in terms of performance and complexity.

Keywords

code division multiple access; diversity reception; least mean squares methods; turbo codes; CDMA system; MMSE; amplify-and-forward scheme; code division multiple access system; cooperative diversity architectures; decode-and-forward scheme; minimum mean square error detection; soft relay scheme; soft-decision metric; turbo decoder; turbo-coded cooperative diversity; Diversity methods; Fading; Mathematical model; Multiaccess communication; Relays; Strontium; Turbo codes;

fLanguage

English

Publisher

ieee

Conference_Titel

Wireless Communications Networking and Mobile Computing (WiCOM), 2010 6th International Conference on

Conference_Location

Chengdu

Print_ISBN

978-1-4244-3708-5

Electronic_ISBN

978-1-4244-3709-2

Type

conf

DOI

10.1109/WICOM.2010.5600967

Filename

5600967