DocumentCode :
2716378
Title :
PAPR Distribution Analysis of OFDM signals with Pulse Shaping
Author :
Jian, Yuwen ; Zang, Zhuquan ; Yan, Wei-Yong
Author_Institution :
Dept. of Electr. & Comput. Eng., Curtin Univ. of Technol., Perth, WA
fYear :
2005
fDate :
5-5 Oct. 2005
Firstpage :
473
Lastpage :
477
Abstract :
Orthogonal frequency division multiplexing (OFDM) is an attractive modulation technique for the next generation of high bit rate wireless transmission due to its efficiency in spectrum utilization and high robustness to multipath fading. However, one of the main problems of the OFDM modulation technique is the large peak-to-average power ratio (PAPR) of the transmitting signals. This high PAPR causes in-band and out-band interference when the OFDM signals are passed through an amplifier which does not have enough linear range. Several techniques such as magnitude clipping, block coding, partial transmit sequence (PTS) and pulse shaping have been proposed to reduce the PAPR. In this paper, the pulse shaping technique, which reduces PAPR without introducing uncontrolled in-band signal distortion and out-band frequency spreading, will be investigated. The complementary cumulative distribution function (CCDF) of the PAPR, which can be used to evaluate the PAPR reduction performance, is derived for OFDM signals with pulse shaping filters
Keywords :
OFDM modulation; block codes; fading channels; multipath channels; pulse shaping; radio networks; radiofrequency interference; signal processing; OFDM signals; PAPR distribution analysis; block coding; cumulative distribution function; in-band interference; magnitude clipping; multipath fading; orthogonal frequency division multiplexing; out-band frequency spreading; out-band interference; partial transmit sequence; peak-to-average power ratio; pulse shaping filters; uncontrolled in-band signal distortion; wireless transmission; Bit rate; Fading; Interference; OFDM modulation; Partial transmit sequences; Peak to average power ratio; Pulse amplifiers; Pulse shaping methods; Robustness; Signal analysis;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Communications, 2005 Asia-Pacific Conference on
Conference_Location :
Perth, WA
Print_ISBN :
0-7803-9132-2
Type :
conf
DOI :
10.1109/APCC.2005.1554104
Filename :
1554104
Link To Document :
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