Commenced in January 2007
Frequency: Monthly
Edition: International
Paper Count: 31824
Fast Dummy Sequence Insertion Method for PAPR Reduction in WiMAX Systems

Authors: Peerapong Uthansakul, Sakkarin Chaokuntod, Monthippa Uthansakul


In literatures, many researches proposed various methods to reduce PAPR (Peak to Average Power Ratio). Among those, DSI (Dummy Sequence Insertion) is one of the most attractive methods for WiMAX systems because it does not require side information transmitted along with user data. However, the conventional DSI methods find dummy sequence by performing an iterative procedure until achieving PAPR under a desired threshold. This causes a significant delay on finding dummy sequence and also effects to the overall performances in WiMAX systems. In this paper, the new method based on DSI is proposed by finding dummy sequence without the need of iterative procedure. The fast DSI method can reduce PAPR without either delays or required side information. The simulation results confirm that the proposed method is able to carry out PAPR performances as similar to the other methods without any delays. In addition, the simulations of WiMAX system with adaptive modulations are also investigated to realize the use of proposed methods on various fading schemes. The results suggest the WiMAX designers to modify a new Signal to Noise Ratio (SNR) criteria for adaptation.

Keywords: WiMAX, OFDM, PAPR, Dummy SequenceInsertion method.

Digital Object Identifier (DOI):

Procedia APA BibTeX Chicago EndNote Harvard JSON MLA RIS XML ISO 690 PDF Downloads 1417


[1] Andrea Goldsmith, Wireless Communications. Cambridge University Press, pp. 374-402, 2005.
[2] Haitao Xiong, Ping Wang and Zhiyong Bu "An Efficient Peak-to- Average Power Ratio Reduction Algorithm for WiMAX System," Communication, 2006. APCC-06. Asia-pacific conference, pp. 1-5, Aug 2006.
[3] Hideki Ochiai and Hideki Imai, "On Clipping for Peak Power Reduction of OFDM Signals," IEEE GLOBECOM-00, vol. 2, pp. 731-735, Nov. 2000.
[4] R.W. Bauml, R. F. H. Fisher, and J. B. Huber, "Reducing the Peak-to- Average Power Ratio of Multicarrier Modulation by Selected Mapping," IEE Electronics Letters, vol. 32, no. 22, pp. 2056-2057, Oct. 1996.
[5] C. L. Wang and Q. Y. Yuan, "Low-complexity selected mapping schemes for peat-to-average power ratio reduction in OFDM systems," IEEE Trans. Signal Processing, vol. 53, no. 12, pp. 4652-4660, Dec.2005.
[6] Tao Jiang and Yiyan Wu, "An Overview: Peak-to-Aerage Power Ratio Reduction Techniques for OFDM Signals," IEEE Transactions on Broadcasting, vol. 54, No.2, JUNE 2008.
[7] L. J. Cimini and N. R. Sollenberger, "Peak-to-Average Power Ratio Reduction of an OFDM Signal Using Partial Transmit Sequences," IEEE Communications Letters, vol. 4, pp. 86-88, March 2000.
[8] Sang-Woo Kim, Jin-Kook Chung and Heung-Hyoon Ryu, "PAPR Reduction of the OFDM Signal by the SLM-based WHT and DSI Method," TENCON 2006, pp. 1-4, Nov. 2006.
[9] Pongsakorn Boonsrimuang, Pisit Boonsrimuang, Kazuo Mori, Tawil Paungma and Hideo Kobayashi, "PAPR Reduction Method for OFDM Signal by Using Dummy Sub-carriers," Wireless Pervasive Computing, pp. 1-5, Jan. 2006.
[10] Peng Tan and Norman C. Beaulieu, "Effect of Channel Estimation Error on Bit Error Probability in OFDM Systems over Rayleigh and Ricean Fading Channels," IEEE Transactions on Communications, vol. 56, No. 4, April 2008.
[11] Abdullah S. A and Takeshi H, "Analysis of Coherent and Non-coherent Symmetric Cancellation Coding for OFDM Over a Multipath Rayleigh Fading Channel," VTC-2006, Sept. 2006.
[12] Celal DUDAK, Arzu Tuncay KOC and Sencer KOC, "Solid State Power Amplifier (SSPA) Nonlinearity Effects on Quadri-Phase Shift Keying Modulation,"Wireless Technology, 2004.
[13] V. Erceg, K.V. S. Hari, M.S. Smith, D.S. Baum, K.P. Sheikh, C. Tappenden, J.M. Costa, C. Bushue, A. Sarajedini, R. Schwartz, D. Branlund, T. Kaitz and D. Trinkwon, "Channel Models for Fixed Wireless Applications," IEEE 802.16 Broadband Wireless Access Working Group, July.2001.
[14] Heung-Gyoon Ryu, Jae-Eun Lee and Jin-Soo Park, "Dummy Sequence Insertion (DSI) for PAPR Reduction in the OFDM Communication System," IEEE Transactions on Consumer Electronics, vol. 50, No.1, Feb. 2004.