Title :
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
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;
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
DOI :
10.1109/WICOM.2010.5600967
