Open Access Open Access  Restricted Access Subscription or Fee Access

Peak to Average Power Ratio Reduction Techniques in OFDM Systems

A. Rajakumari


To have a reliable and efficient transmission, single carrier wave is being replaced by multicarrier. Nowadays multicarrier system like OFDM systems are implemented commonly in wireless communication. In the OFDM system, orthogonally placed subcarriers are used to carry the data from transmitter to receiver. It improves the bandwidth efficiency. But the large PAPR is one of the short comings in multicarrier systems as it causes non linear distortion in the transmitter. In this project work we have reduced the PAPR by using various methods like signal distortion techniques, coding techniques, and signal scrambling techniques. Signal scrambling technique like PTS and SLM are studied. Combined signal scrambling techniques with coding techniques namely Turbo codes and Golay codes are investigated. It is discussed through simulation results that considerable reduction in PAPR can be achieved when powerful FEC is employed.



Full Text:



Fangling PU, Jianya Gong, Liangcai Gan, “OFDM Peak-to Average Power Ratio Reduction by Combining the PTS with Golay Complementary Sequences and Reed-Muller Codes”, IEEE Advanced communication technology, vol.2, pp.845-848, July.2006

S. H. Han and J. H. Lee, “An overview of peak- to-average power ratio Reduction techniques for multicarrier transmission”, IEEE Wireless Communications, vol. 12, no. 2, pp. 56-65, Apr. 2005.

Jyh-Horng Wen Gwo-Ruey Lee Chih-Chung Kung Cheng-Ying Yang, “Coding Schemes Applied to Peak-to-Average Power Ratio (PAPR) Reduction in OFDM Systems”, IEEE Wireless Communications and Mobile Computing Conference, pp.807-812, Aug, 2008.

A. Singhal, M. Chandwani, N. Vishnukant. I and V. K. Chakka, “A Low Complexity SLM technique for PAPR reduction in OFDM using Thresholding of Power Amplifier”, IEEE Communication Letters, Submitted on July, 2009.

Y. Xiao, S. Li, X. Lei and Y. Tang, “Clipping noise mitigation for channel estimation in OFDM systems”, IEEE Commun. Lett, vol. 10, no.6, June 2006, pp. 474–476.

K. G. Paterson and V. Tarokh, “On the Existence and Construction of Good Codes with Low Peak- to-Average Power Ratios,” IEEE Trans. Info Theory, vol. 46, no. 6, Sept. 2000, pp.1974– 87.

K. G. Paterson, “Generalized Reed-Muller codes and power control in OFDM modulation,” IEEE Trans. Inform. Theory, vol. 46, pp. 110-120, Jan. 2000.

Leonard J., Cimini Jr.,and Nelson R.Sollenberger,“Peak-to-Average Power Ratio Reduction of an OFDM Signal Using Partial Transmit Sequences”, IEEE Comm. Letters, Vol.4, No. 3, pp.86-88, March 2000.

S.G.Kang, J.G.Kim, and E.K.Joo, “A novel sub Block partition Scheme For partial transmit Sequence OFDM”, IEEE Trans on Broadcasting, vol.45, no.3, pp.232-236, Sept. 1999.

P. Van Eetvelt, G. Wade and M. Tomlinson, “Peak to average power reduction for OFDM schemes by selective scrambling,” Electronic letters, vol. 32, pp. 1963-1994, Jan 2000.

A. D. S. Jayalath and C. Tellambura ” The use of interleaving to reduce the peak to average power ratio of an OFDM signals,” IEEE Global Tele communication Conference, vol. 1, pp. 82-86, Dec. 2000.



  • There are currently no refbacks.

Creative Commons License
This work is licensed under a Creative Commons Attribution 3.0 License.