Title :
The new PAPR reduction approach in MC-CDMA
Author :
Zbynek Fedra;Vladimir Sebesta
Author_Institution :
Brno University of Technology, Department of Radio Electronics, Purkynova 118,612 00 Brno, CZECH REPUBLIC. E-mail: xfedra01@stud.feec.vutbr.cz
fDate :
6/1/2006 12:00:00 AM
Abstract :
This paper describes a new PAPR (peak to average power ratio) reduction approach in MC-CDMA (multicarrier code division multiple access) system (in so called M-modification). The spreading sequence introduces coherence among subcarriers. This is used for chip position formatting to PAPR minimization. The optimizations methods are used to get best chip interleaving sequence (namely genetic algorithm (GA) and ant colony optimization (ACO)). BER simulation in AWGN (additive white Gaussian noise) channel with clipping is presented to evaluate efficiency of this concept
Keywords :
"Peak to average power ratio","Multicarrier code division multiple access","AWGN","OFDM modulation","Wireless LAN","Digital video broadcasting","Multiaccess communication","Partial transmit sequences","Optimization methods","Interleaved codes"
Conference_Titel :
Signal Processing Symposium, 2006. NORSIG 2006. Proceedings of the 7th Nordic
Print_ISBN :
1-4244-0412-6
DOI :
10.1109/NORSIG.2006.275250
