Title :
Methods for multi-carrier power amplifier linearization
Author :
Nezami, Mohamed K.
Author_Institution :
Raytheon Co., St. Petersburg, FL, USA
Abstract :
Efficiency and adjacent channel interference (ACI) performance requirements of modern cellular 3G/4G, wireless metropolitan area networks (WMAN), multipoint multi-channel distribution service (MMDS) and local multipoint distribution service (LMDS) transmitters, and space transponders all have prompted research into areas such as linearization, peak-to-average power reduction, modem hardware. impairments correction, and emission spectral shaping and filtering. This paper illustrates using computer simulations, theoretical analysis, and experimental results several techniques for making transmitters more efficient and more programmable. Also an attempt was made to identify some of their hardware implementation difficulties and performance limiting factors.
Keywords :
3G mobile communication; 4G mobile communication; adjacent channel interference; cellular radio; linearisation techniques; metropolitan area networks; power amplifiers; radio transmitters; radiofrequency amplifiers; telecommunication channels; telecommunication services; transponders; adjacent channel interference; cellular 3G-4G; local multipoint distribution service transmitters; multicarrier power amplifier linearization; multipoint multichannel distribution service transmitters; peak-to-average power reduction; space transponders; wireless metropolitan area networks; Cellular networks; Hardware; Interchannel interference; Metropolitan area networks; Modems; Peak to average power ratio; Power amplifiers; Transmitters; Transponders; Wireless LAN;
Conference_Titel :
Military Communications Conference, 2004. MILCOM 2004. 2004 IEEE
Print_ISBN :
0-7803-8847-X
DOI :
10.1109/MILCOM.2004.1493316
