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Analysis and Comparison of PAPR Reduction Techniques in OFDM Systems | ||
| Journal of Electrical and Computer Engineering Innovations (JECEI) | ||
| مقاله 5، دوره 3، شماره 1 - شماره پیاپی 5، فروردین 2015، صفحه 37-45 اصل مقاله (1.36 M) | ||
| نوع مقاله: Original Research Paper | ||
| شناسه دیجیتال (DOI): 10.22061/jecei.2015.372 | ||
| نویسندگان | ||
| M.B. Noori Shirazi* 1؛ A. Golestani1؛ H. Ahmadian Yazdi2؛ A. Habibi Daronkola1 | ||
| 1Faculty of Electrical and Computer Engineering, K. N. Toosi University of Technology, Tehran, Iran | ||
| 2Faculty of Engineering, Islamic Azad University, Science and Research Branch, Tehran, Iran | ||
| تاریخ دریافت: 18 مرداد 1394، تاریخ بازنگری: 18 شهریور 1394، تاریخ پذیرش: 07 مهر 1394 | ||
| چکیده | ||
| The destructive impact of fading environments and also bandwidth limitations are two main challenges which communication is dealing with them. These challenges can affect on the growth of wireless communication and even cause reliable communications and high data rate to be prevented. Thus, OFDM (Orthogonal Frequency Division Multiplexing) modulation by using of fast calculation hardwares such as FFT, high ability for combating multipath fading and appropriate spectral efficiency has taken into consideration. However, we should know that OFDM systems potentially have high Peak to Average Power Ratio (PAPR). This drawback drives the power amplifier into saturation leading to higher distortions and also degrades BER performance. Since increasing the dynamic range of power amplifier is not affordable, reduction of the PAPR is so important. In this paper, we investigate the PAPR and its reduction methods by using the theoretical and numerical analysis. These techniques can be classified into two main categories, signal distortion techniques, multiple signaling and probabilistic techniques. The advantages and disadvantages of each technique are derived from different prospectives. Moreover, we compare the numerical results of the techniques in the first classification from BER prospective which demonstrates that for changing the parameters corresponding to each technique, its performance can be changed greatly. Hence, we are sure that a technique can not outperform the other ones in all cases. Finally, the computational complexity of the techniques in the second classification are compared to each other which their results show that TR and TI techniques are much more complex than the other ones. | ||
| کلیدواژهها | ||
| OFDM؛ PAPR؛ PAPR reduction methods | ||
| مراجع | ||
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[1] X.D. Yang, et al., “Performance analysis of the OFDM scheme in DVB-T,” in Proc. the 6th IEEE Circuits and Systerms Symp. on Emerging Tech., vol. 2, Shanghai, China, 31 May- 2 June 2004, pp. 489-492.
[2] M. Al-Gharabally and P. Das, “Performance analysis of OFDM in frequency selective timevariant channels with application to IEEE 802.16 broadband wireless access,” in Proc. IEEE Conf. on Military Comm. (MILCOM), vol. 1, Oct. 2005, pp. 351-356.
[3] R. van Nee and R. Prasad, OFDM for Wireless Multimedia Communications, Artech House Publisher, Norwood, 2000. [4] E. Dahlman, S. Parkvall, and J. Skold, “4G LTE/LTE-Advanced for Mobile Broadband,” Elsevier Academic Press, Burlington, 2011.
[5] Y. Rahmatallah and S. Mohan, “Peak-to-average power ratio reduction in OFDM systems: A survey and taxonomy,” IEEE Commun. Surveys and Tutorials, vol. 15, no. 4, pp. 1567-1592, Feb. 2013.
[6] S. H. Han and J. H. Lee, “An overview of peak-to-average power ratio reduction techniques for multicarrier transmission,” IEEE Wireless Commun., vol. 12, no. 2, pp. 56–65, Apr. 2005.
[7] M. Sharif, M. Gharavi-Alkhansari, and B. H. Khalaj, “On the peak-to-average power of OFDM signals based on oversampling,” IEEE Trans. Commun., vol. 51, no. 1, pp. 72–78, Jan. 2003.
[8] C. Tellambura, “Computation of the continuous-time PAR of an OFDM signal with BPSK subcarriers,” IEEE Commun. Lett., vol. 5, no. 5, pp. 185–187, May 2001. [9] Xiao, L. Jianhua, C. Justin, and Z. Junli, “Companding transform for the reduction of peak-to-average power ratio of OFDM signals,” in Proc. IEEE Vehicular Tech. Conf. (VTC) , 2001, pp. 835–839. [10] H. Xiao, L. Jianhua, Z. Junli, J. Chuang, and G. Jun, “Reduction of peak-to-average power ratio of OFDM signals with companding transform,” IEE Electronic Letters, vol. 37, no. 8, pp. 506–507, April 2001.
[11] S. H. S. Y. L. Goff, S. S. Al-Samahi, B. K. Khoo, C. C. Tsimenidis, and B. S. Sharif, “Selected mapping without side information for PAPR reduction in OFDM,” IEEE Trans. Wireless Commun., vol. 8, no. 1, pp. 3320–3325, July 2009.
[12] A. D. S. Jayalath and C. Tellambura, “SLM and PTS peak-power reduction of OFDM signals without side information,” IEEE Trans. Wireless Commun., vol. 4, no. 5, pp. 2006–2013, Sept. 2005.
[13] W. S. Ho, A. S. Madhukumar, and F. Chin, “Peak-to-average power reduction using partial transmit sequences: A suboptimal approach based on dual layered phase sequencing,” in Proc. IEEE Vehicular Tech. Conf. (VTC), April 2003, pp. 1268–1272.
[14] Wang, Sen-Hung, et al. “A low-complexity symbol interleaving based PAPR reduction scheme for OFDM systems,” in Proc. IEEE Int. Conf. on Commun. (ICC), 2013, pp. 4693-4697.
[15] Chen, Jung-Chieh, and Chao-Kai Wen. “PAPR reduction of OFDM signals using cross-entropy-based tone injection schemes,” IEEE Signal Processing Letters, pp. 727-730, 2010.
[16] T. Jiang and Y. Wu, "An Overview: peak-to-average power ratio reduction techniques for OFDM signals, "IEEE Trans. on Broadcasting, vol. 54, no. 2, June 2008. | ||
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