NDLI: On the Use of Hexagonal Constellation for Peak-to-Average Power Ratio Reduction of an ODFM Signal

Content Provider	IEEE Xplore Digital Library
Author	Seung Hee Han Cioffi, J.M. Jae Hong Lee
Copyright Year	2002
Abstract	One of the main drawbacks of orthogonal frequency division multiplexing (OFDM) is the high peak-to-average power ratio (PAPR) of the OFDM signal. In this paper, we propose the use of hexagonal constellation for PAPR reduction of an OFDM signal. Because hexagonal constellation is the densest packing of regularly spaced points in two dimensions, we can have more signal points in a given area with hexagonal constellation than with quadrature amplitude modulation (QAM) constellation. We can exploit these extra degrees of freedom provided by the hexagonal constellation for PAPR reduction of an OFDM signal. We will apply the proposed technique to eliminate data rate loss due to the side information in partial transmit sequence (PTS) technique and selected mapping (SLM) technique.
Starting Page	781
Ending Page	786
Page Count	6
File Size	267621
File Format	PDF
ISSN	15361276
Volume Number	7
Issue Number	3
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2008-03-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Constellation diagram Peak to average power ratio Partial transmit sequences Quadrature amplitude modulation OFDM modulation Wireless LAN High power amplifiers Propagation losses Frequency division multiplexing Digital modulation
Content Type	Text
Resource Type	Article
Subject	Applied Mathematics Electrical and Electronic Engineering Computer Science Applications

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