Title :
Effects of clipping and filtering on the performance of OFDM
Author :
Li, Xiaodong ; Cimini, Leonard J., Jr.
Author_Institution :
Dept. of Electr. Eng., Washington Univ., Seattle, WA, USA
Abstract :
Orthogonal frequency division multiplexing (OFDM) is an attractive technique for wireless communication applications. However, an OFDM signal has a large peak-to-mean envelope power ratio (PMEPR), which can result in significant distortion when transmitted through a nonlinear device, such as a transmitter power amplifier. We investigate, through extensive computer simulations, the effects of clipping and filtering on the performance of OFDM, including the power spectral density, the bit error rate, and the PMEPR. Our results show that clipping and filtering is a promising technique for the transmission of OFDM signals using realistic linear amplifiers
Keywords :
coding errors; error statistics; filtering theory; frequency division multiplexing; power amplifiers; quadrature phase shift keying; radio transmitters; radiofrequency amplifiers; spectral analysis; OFDM performance; OFDM signal transmission; QPSK; bit error rate; clipping; computer simulations; distortion; filtering; linear amplifiers; nonlinear device; orthogonal frequency division multiplexing; peak-to-mean envelope power ratio; power spectral density; transmitter power amplifier; wireless communication applications; Application software; Bit error rate; Computer simulation; Filtering; Nonlinear distortion; Nonlinear filters; OFDM; Power amplifiers; Transmitters; Wireless communication;
Conference_Titel :
Vehicular Technology Conference, 1997, IEEE 47th
Conference_Location :
Phoenix, AZ
Print_ISBN :
0-7803-3659-3
DOI :
10.1109/VETEC.1997.605835
