NDLI: A Novel Tone Reservation Scheme with Fast Convergence for PAPR Reduction in OFDM Systems

Content Provider	IEEE Xplore Digital Library
Author	Jiao, Y.Z. Liu, X.J. Wang, X.A.
Copyright Year	2008
Description	Author affiliation: Peking Univ., Shenzhen (Jiao, Y.Z.; Liu, X.J.; Wang, X.A.)
Abstract	OFDM is facing great opportunities and challenges in current broadband communication era. These opportunities and challenges derive from the native advantages and disadvantages of OFDM technology respectively. Too high PAPR is one of the main problems that prevent OFDM from being used more generally in broadband systems. Many approaches such as clipping and filtering, coding, SLM, PTS, and tone reservation have been studied to reduce the peak magnitude of OFDM symbols. In these approaches, tone reservation is considered as one of the most promising methods because of no additional distortion, no side information, and low implementation cost. In this paper, a novel tone reservation scheme is presented. Its essential idea is that a subcarrier selected from all reserved subcarriers for PAPR reduction should have a phase close to one of phi, pi/2+phi, pi+phi and -pi/2+phi, at the peak location in time domain, where phi is the phase of the peak sample. This results in no complex multiplication and division in the novel scheme. In addition, the floating positions of such selected subcarriers in frequency domain are helpful to the convergence of the algorithm. The simulation results show that the scheme can provide good performance and fast convergence.
Starting Page	398
Ending Page	402
File Size	295814
Page Count	5
File Format	PDF
ISBN	9781424414567
e-ISBN	9781424414574
DOI	10.1109/ccnc08.2007.95
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2008-01-10
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Convergence Peak to average power ratio OFDM Partial transmit sequences Time domain analysis Filtering Data engineering Signal design Wire Wireless LAN
Content Type	Text
Resource Type	Article

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