Combined PAPR reduction and frequency offset estimation using precoded Zadoff-Chu OFDM in WLAN system

Author

Priya, Geetha C. ; Suganthi, M.

Author_Institution

Mepco Schlenk Eng. Coll., Sivakasi, India

Volume

3

fYear

2010

fDate

9-11 July 2010

Firstpage

461

Lastpage

465

Abstract

The main objective of this paper is to implement a precoded Zadoff-Chu OFDM to reduce the Peak to Average Power Ratio (PAPR) and for frequency offset estimation in Wireless Local Area Networks. High PAPR and Carrier Frequency Offset are major disadvantages to the Orthogonal Frequency Division Multiplexing (OFDM) systems and can significantly degrade the power efficiency at the transmitter and performance of the system respectively. From the simulation results in MATLAB, it can be proved that using this method a PAPR of 2.5dB less than that of PTS technique can be achieved and the range of frequency estimation of N/2 subcarrier spacing can be obtained.

Keywords

OFDM modulation; wireless LAN; PAPR reduction; WLAN system; carrier frequency offset; frequency offset estimation; orthogonal frequency division multiplexing; peak to average power ratio; precoded Zadoff-Chu OFDM; wireless local area networks; Chirp; Frequency conversion; MATLAB; OFDM; Wireless communication; Adjacent Symbol Combining(ASC); Carrier Frequency Offset (CFO); Orthogonal Frequency Division Multiplexing (OFDM); Partial Transmit Sequence (PTS); Peak to Average Power Ratio (PAPR); Wireless Local Area Network (WLAN); Zadoff-Chu (ZC);

fLanguage

English

Publisher

ieee

Conference_Titel

Computer Science and Information Technology (ICCSIT), 2010 3rd IEEE International Conference on

Conference_Location

Chengdu

Print_ISBN

978-1-4244-5537-9

Type

conf

DOI

10.1109/ICCSIT.2010.5564531

Filename

5564531