Title :
Evaluation of BER degradation due to phase nonlinearity of SSPA on MC-CDMA signals
Author :
Ichikawa, Michihiro ; Hara, Takao ; Saito, Masato ; Okada, Minoru ; Yamamoto, Heiichi
Author_Institution :
Nara Inst. of Sci. & Technol., Japan
Abstract :
We investigate the influence of both AM/PM conversion and HPA (high power amplifier) nonlinearity by evaluating BER degradations, using an SSPA (solid state power amplifier) for the multi-carrier CDMA (MC-CDMA) system downlink. A simple model of AM/PM conversion to cover individual differences of SSPAs is given for the evaluation. It is shown that AM/PM characteristics have influence on BER degradations and individual differences of SSPAs are considerable for the IBO (input back-off) configuration. The results might give insights for the design of MC-CDMA systems.
Keywords :
amplitude modulation; code division multiple access; error statistics; mobile radio; nonlinear distortion; phase modulation; power amplifiers; AM/PM conversion; BER degradation; MC-CDMA signals; high power amplifier nonlinearity; input back-off configuration; mobile communications; multi-carrier CDMA; phase nonlinearity; solid state power amplifier; Base stations; Bit error rate; Degradation; High power amplifiers; Mobile communication; Multiaccess communication; Multicarrier code division multiple access; Peak to average power ratio; Power system modeling; Solid state circuits;
Conference_Titel :
Personal Wireless Communications, 2005. ICPWC 2005. 2005 IEEE International Conference on
Print_ISBN :
0-7803-8964-6
DOI :
10.1109/ICPWC.2005.1431404
