论文信息 - Effect of peak power suppression and adaptive predistortion on power amplification of an OFCDM signal

Effect of peak power suppression and adaptive predistortion on power amplification of an OFCDM signal

The OFCDM (orthogonal frequency and code division multiplexing) system is receiving attention to achieve a high data rate transmission for multimedia communication. A problem with the system is that PAPR (peak to average power ratio) of the OFCDM signal increases as the number of carriers increases. In this paper, we investigate peak reducing methods for OFCDM system with a predistorter power amplifier. We show that the peak reduction scheme and adaptive predistortion gives a high power efficiency and high linearity in power amplification of OFCDM signal.

O. Muta | Y. Akaiwa | N. Aizawa | M. Sawahashi

[1] Tomoaki Ohtsuki,et al. A peak to average power ratio reduction of multicarrier CDMA using selected mapping , 2002, Proceedings IEEE 56th Vehicular Technology Conference.

[2] Hiroshi Suzuki,et al. A Peak Reduction Scheme Based on Control Signal Insertion for Multi-Carrier Mobile Communication Systems , 2003 .

[3] Yoshihiko Akaiwa,et al. An RF-Band Adaptive Predistorter Power Amplifier(Special Issue on Software Defined Radio Technology and Its Applications) , 2002 .

[4] Yoshihiko Akaiwa,et al. Introduction to digital mobile communication , 1997, Wiley series in telecommunicatins and signal processing.

[5] Hiroyuki Atarashi,et al. Variable Spreading Factor Orthogonal Frequency and Code Division Multiplexing (VSF-OFCDM) , 2002 .

[6] Mamoru Sawahashi,et al. Variable Spreading Factor-OFCDM with Two Dimensional Spreading that Prioritizes Time Domain Spreading for Forward Link Broadband Wireless Access , 2005, IEICE Trans. Commun..