Performance of nonlinearly amplified multicarrier spread spectrum systems in the presence of multipath fading

Author

Jong, Je-Hong ; Stark, Wayne E.

Author_Institution

Dept. of Electr. Eng. & Comput. Sci., Michigan Univ., Ann Arbor, MI, USA

Volume

3

fYear

1998

fDate

18-21 May 1998

Firstpage

2027

Abstract

We analyze the effect of a nonlinearity on the bit error rate performance of multicarrier spread spectrum (MCSS) systems in the presence of multipath fading. A 5th order polynomial model is used to represent the amplifier amplitude nonlinearities (AM/AM) and a flat Rayleigh fading channel is assumed for each modulated carrier. It is found that for the additive white Gaussian noise and multipath fading channel, the bit error degradation from a nonlinear amplification is not as significant as in the additive white Gaussian noise channel alone

Keywords

AWGN channels; OFDM modulation; Rayleigh channels; amplitude modulation; demodulators; error statistics; multipath channels; spread spectrum communication; 5th order polynomial model; AM/AM; BER; OFDM; additive white Gaussian noise channel; amplifier amplitude nonlinearities; average bit error probability; bit error degradation; bit error rate performance; demodulator output statistics; flat Rayleigh fading channel; modulated carrier; multipath fading; nonlinearly amplified multicarrier spread spectrum systems; AWGN; Additive white noise; Bit error rate; Fading; Gaussian noise; OFDM modulation; Performance analysis; Random variables; Spread spectrum communication; Transmitters;

fLanguage

English

Publisher

ieee

Conference_Titel

Vehicular Technology Conference, 1998. VTC 98. 48th IEEE

Conference_Location

Ottawa, Ont.

ISSN

1090-3038

Print_ISBN

0-7803-4320-4

Type

conf

DOI

10.1109/VETEC.1998.686112

Filename

686112