Title :
A new ARQ method for turbo coded MC-CDMA
Author :
Xie, Kai ; Wang, Wenbo
Author_Institution :
Sch. of Telecommun. Eng., Beijing Univ. of Posts & Telecommun., China
Abstract :
This paper investigates a new ARQ method for turbo coded MC-CDMA systems in the multipath fading environment. Some typical phenomena were observed, then a new parameter to control the ARQ protocol was defined. Encouraged by the prediction of BER in the EXIT chart, we compute a threshold for the new parameter. Simulation results show that the improved ARQ method decreases the bit error rate in less system cost and complexity.
Keywords :
automatic repeat request; code division multiple access; error statistics; fading channels; multipath channels; turbo codes; ARQ method; ARQ protocol control; BER prediction; EXIT chart; multicarrier CDMA; multipath fading; turbo coded MC-CDMA; Automatic repeat request; Bandwidth; Bit error rate; Costs; Fading; Multiaccess communication; Multicarrier code division multiple access; OFDM modulation; Turbo codes; Wireless communication;
Conference_Titel :
Communications, 2005. ICC 2005. 2005 IEEE International Conference on
Print_ISBN :
0-7803-8938-7
DOI :
10.1109/ICC.2005.1495055
