Title :
Role of signal envelope distribution in predicting the performance of a multicarrier communication system
Author :
Balister, Philip ; Nizamuddin, Muhammad ; Robert, Max ; Tranter, William ; Reed, Jeffrey H.
Author_Institution :
Mobile & Portable Radio Res. Group, Virginia Polytech. Inst. & State Univ., Blacksburg, VA, USA
Abstract :
The peak-to-average power ratio of a signal is often used to determine the output power backoff needed to prevent spectral regrowth due the effects of nonlinear power amplifiers. It has been suggested that a better measure of the impact of a nonlinear amplifier on the transmitted signal is the envelope power distribution function. This paper presents simulation results for a multicarrier communication system showing how the peak-to-average power ratio and the envelope power distribution function change as the number of carriers increases, these results show that the envelope power distribution function is a better figure of merit than the peak-to-average power ratio for determining the impact of a nonlinear power amplifier on a communication system´s BER
Keywords :
error statistics; power amplifiers; radiofrequency amplifiers; BER; IS-94 signal; IS-95 signal; envelope power distribution function; multicarrier communication system; nonlinear power amplifiers; output power backoff; peak-to-average power ratio; performance prediction; signal envelope distribution; simulation results; spectral regrowth; Bit error rate; Computational modeling; Distributed amplifiers; Interference; Peak to average power ratio; Power amplifiers; Power distribution; Power generation; Power measurement; Quadrature phase shift keying;
Conference_Titel :
Radio and Wireless Conference, 2001. RAWCON 2001. IEEE
Conference_Location :
Waltham, MA
Print_ISBN :
0-7803-7189-5
DOI :
10.1109/RAWCON.2001.947636
