NDLI: Peak-to-average power ratio performance of interleaved spread spectrum OFDM signals

Content Provider	IEEE Xplore Digital Library
Author	Pingzhou Tu Xiaojing Huang Dutkiewicz, E.
Copyright Year	2007
Description	Author affiliation: Univ. of Wollongong, Wollongong (Pingzhou Tu; Xiaojing Huang; Dutkiewicz, E.)
Abstract	In this paper we propose an interleaved spread spectrum orthogonal frequency division multiplexing (ISS-OFDM) transmission scheme and demonstrate its reduced peak-to-average power ratio (PAR). The proposed ISS-OFDM signal is realized by two steps. The first step is to modulate the data symbol by complex exponential spreading and the second is to use an interleaving technique to spread the signal spectrum as well as reduce the signal peak-to-average power ratio. The distinctive features of the proposed method are that in the frequency domain the same data information is carried by a number of subbands to effectively spread the signal spectrum and in the time domain the spread signal components are not constructively added together so that signal peaks in the transmitted waveform are avoided. This principle of PAR reduction is unique compared with other techniques such as selected mapping (SLM), partial transmit sequences (PTS), and clipping. With the increase of the number of signal subbands, the PAR performance is improved significantly.
Starting Page	82
Ending Page	86
File Size	1452678
Page Count	5
File Format	PDF
ISBN	9781424409761
DOI	10.1109/ISCIT.2007.4391989
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2007-10-17
Publisher Place	Australia
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Wireless LAN Partial transmit sequences Intersymbol interference Peak to average power ratio Spread spectrum communication Interleaved codes Signal generators Frequency conversion OFDM modulation Digital video broadcasting
Content Type	Text
Resource Type	Article

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