OFDM signals with low crest-factor
- 23 November 2002
- conference paper
- Published by Institute of Electrical and Electronics Engineers (IEEE)
- Vol. 1, 290-294
- https://doi.org/10.1109/glocom.1997.632556
Abstract
The crest-factor (CF) of a signal is the ratio of its peak magnitude to its root mean-square (RMS) magnitude. An algorithm for the generation of information carrying OFDM signals with very low CF is presented. Such signals allow for the use of OFDM modulation together with power efficient amplifiers without causing out-of-band energy due to transmitter saturation. Since the complexity of the algorithm is completely located at the transmitter side, the proposed scheme is especially suitable for broadcasting services. The cost for the reduced CF is a certain loss in data rate, which can be varied by a parameter of the method. For example, in the case of only 25 percent loss in data rate a CF lower than 2.11 can be achieved Author(s) Friese, M. Technol. Center, Deutsche Telekom, Darmstadt, GermanyKeywords
This publication has 8 references indexed in Scilit:
- Reducing the peak-to-average power ratio of multicarriermodulation by selected mappingElectronics Letters, 1996
- Peak to average power reduction for OFDM schemesby selective scramblingElectronics Letters, 1996
- A method to reduce the probability of clipping in DMT-based transceiversIEEE Transactions on Communications, 1996
- Reduction of peak to mean ratio of multicarriermodulation using cyclic codingElectronics Letters, 1996
- Simple coding scheme to reduce peakfactor in QPSK multicarrier modulationElectronics Letters, 1995
- Block coding schemefor reduction of peak to mean envelope power ratioof multicarrier transmission schemesElectronics Letters, 1994
- Peak factor minimization of input and output signals of linear systemsIEEE Transactions on Instrumentation and Measurement, 1988
- Sur Les Polynomes a Coefficients UnimodulairesBulletin of the London Mathematical Society, 1980