Title :
PAPR analysis of precoding-based OFDM systems
Author :
Min, Yew Kuan ; Jeoti, Varun
Author_Institution :
Electr. & Electron. Eng. Programme, Univ. Teknol. Petronas, Tronoh
Abstract :
In this paper, we present our study on the peak-to-average power ratio (PAPR) of precoding-based orthogonal frequency division multiplexing (OFDM) systems. We analyze the probability density functions of various types of precoded OFDM signals. Then we show that the precoders can change the statistical properties of OFDM signals and hence the distribution of PAPR. We further compare the PAPR reduction performance of the precoded OFDM systems and show that these systems can have PAPR up to 4.5 dB lower than the conventional OFDM system.
Keywords :
OFDM modulation; precoding; PAPR analysis; orthogonal frequency division multiplexing systems; peak-to-average power ratio; precoding-based OFDM systems; Digital video broadcasting; Intelligent systems; OFDM modulation; Peak to average power ratio; Power amplifiers; Power engineering and energy; Probability density function; Robustness; Signal analysis; Wide area networks; OFDM; PAPR; precoding; probability density function (PDF);
Conference_Titel :
Intelligent and Advanced Systems, 2007. ICIAS 2007. International Conference on
Conference_Location :
Kuala Lumpur
Print_ISBN :
978-1-4244-1355-3
Electronic_ISBN :
978-1-4244-1356-0
DOI :
10.1109/ICIAS.2007.4658429
