Reduction of peak to average power ratio in OFDM technique by using cyclic codes

Author

Roshan, R. ; Jain, Jaiyasha ; Soni, Archana

Author_Institution

Dept. of Electron. & Commun., Rishi Raj Inst. of Technol., Indore, India

fYear

2013

fDate

1-2 March 2013

Firstpage

233

Lastpage

237

Abstract

Peak-to-average power ratio (PAPR) is a major drawback in most multi-carrier communication techniques such as orthogonal frequency division multiplex system (OFDM). OFDM consists of lots of independent modulated subcarriers, as a result the amplitude of such a signal can have very large values. These large peaks increase the amount of inter-modulation distortion resulting in an increase in the error rate. In this paper we dealt with simple cyclic coding (CC) scheme having coding rates (R) of 4/7 and 11/15. The proposed coding scheme shows good PAPR reduction with any length of data sequence. The results are verified and shown for 16 point IFFT and 64 point IFFT. In this scheme add some extra parity bits to the data bits. These parity bits can correct up to one bit error.

Keywords

OFDM modulation; cyclic codes; intermodulation distortion; radio networks; CC scheme; IFFT; OFDM technique; PAPR reduction; cyclic codes; data sequence; independent modulated subcarriers; intermodulation distortion; multicarrier communication techniques; orthogonal frequency division multiplex system; peak-to-average power ratio; Block codes; Intelligent systems; Modulation; Peak to average power ratio; Complementary Cumulative Distribution Function (CCDF); Cyclic Coding (CC); Orthogonal Frequency Division Multiplexing (OFDM); Peak to Average PowerRatio (PAPR);

fLanguage

English

Publisher

ieee

Conference_Titel

Intelligent Systems and Signal Processing (ISSP), 2013 International Conference on

Conference_Location

Gujarat

Print_ISBN

978-1-4799-0316-0

Type

conf

DOI

10.1109/ISSP.2013.6526909

Filename

6526909