Title :
Reducing the peak-to-average power ratio in OFDM radio transmission systems
Author :
May, Thomas ; Rohling, Hermann
Author_Institution :
Inst. of Telecommun., Tech. Univ. Braunschweig, Germany
Abstract :
An important difficulty which has to be solved in OFDM transmission systems is the large peak-to-average power ratio of the OFDM signal. Without any measures, the signal is limited by the power amplifier in the transmitter which causes interference both of the signal itself and in adjacent frequency bands. A method is proposed which considerably reduces the peak-to-average power ratio of the OFDM signal by means of signal processing
Keywords :
AWGN channels; OFDM modulation; differential phase shift keying; error statistics; fading channels; interference suppression; quadrature phase shift keying; radiocommunication; radiofrequency interference; signal processing; AWGN channel; DQPSK; Gaussian functions; OFDM radio transmission systems; OFDM signal; adjacent frequency bands; bit error rate; frequency-selective fading; interference; multiplicative correction; peak-to-average power ratio reduction; power amplifier; signal processing; transmitter; Interference; OFDM modulation; Peak to average power ratio; Power amplifiers; Power measurement; Pulse amplifiers; Pulse modulation; Radio transmitters; Redundancy; Signal processing;
Conference_Titel :
Vehicular Technology Conference, 1998. VTC 98. 48th IEEE
Conference_Location :
Ottawa, Ont.
Print_ISBN :
0-7803-4320-4
DOI :
10.1109/VETEC.1998.686204
