Title :
Efficient virtual terminal manner in Wavelet Packet based MC-CDMA system
Author :
Sadreazami, Hamidreza ; Jahanshahi, Javad Afshar ; Amini, Marzieh
Author_Institution :
Dept. of Electr. & Comput. Eng., Shahid Beheshti Univ., Tehran, Iran
Abstract :
Wavelet Packet modulation has been recently attracted many researchers as a mean to achieve high performance in fast wireless communication systems. The performance of wavelet packet modulation can be increased by sending the data over some unused nodes, which are commonly called as virtual terminals, in the wavelet packet tree. In this paper, we propose an efficient algorithm to select the best sub bands for sending data packets and the position of virtual terminals with respect to the characteristics of the channel frequency response. Simulation results show the efficiency of the proposed method for wavelet packet based MC-CDMA systems in comparison with conventional methods.
Keywords :
code division multiple access; frequency response; modulation; trees (mathematics); wavelet transforms; wireless channels; MC-CDMA system; channel frequency response; code division multiple access system; multicarrier transmission; virtual terminal; wavelet packet modulation; wavelet packet tree; wireless communication system; Artificial neural networks;
Conference_Titel :
Intelligent Signal Processing and Communication Systems (ISPACS), 2010 International Symposium on
Conference_Location :
Chengdu
Print_ISBN :
978-1-4244-7369-4
DOI :
10.1109/ISPACS.2010.5704786
