Teknik Reduksi PAPR Pada Sistem OFDM Dengan Partial Transmit Sequence (PTS) dan Selected Mapping (SLM)
DOI:
https://doi.org/10.14203/jet.v15.60-65Keywords:
OFDM, Teknik Reduksi PAPR, Selected Mapping (SLM), Partial Transmit Sequence (PTS), complementary cumulative distribution function (CCDF)Abstract
Orthogonal Frequency Division Multiplexing (OFDM) merupakan teknik modulasi multicarrier yang banyak diadopsi oleh berbagai teknologi komunikasi nirkabel untuk memenuhi kebutuhan akses broadband yang kian meningkat karena menyediakan transmisi dengan data rate tinggi. Selain itu, OFDM juga tahan terhadap efek multipath fading. Salah satu permasalahan utama pada sistem ini adalah tingginya nilai PAPR yang menyebabkan penggunaan power amplifier menjadi tidak efisien. Sebagai solusi permasalahan ini, teknik Selected Mapping (SLM) dan Partial Transmit Sequence (PTS) digunakan untuk mereduksi nilai PAPR. Kedua teknik ini dipilih karena efisien dalam mereduksi nilai PAPR. Dari hasil simulasi yang dilakukan terhadap 1000 simbol OFDM, kedua teknik ini memberikan reduksi PAPR yang semakin besar untuk jumlah subblok yang semakin banyak. Selanjutnya, kinerja kedua teknik ini dibandingkan. Dengan jumlah subblok yang sama, SLM memiliki performansi yang lebih baik dalam mereduksi PAPR dibandingkan dengan PTS.Downloads
References
(2015). Pemerataan akses broadband di Indonesia. [Online]. Available: http://biz.kompas.com/read/2015/10/23/084024228/Pemerataan.Akses.Broadband.di.Indonesia.
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, April 2005.
T. Jiang and Y. Wu, “An overview: peak-to-average power ratio reduction techniques for OFDM signals,” IEEE Transactions on Broadcasting, vol 54, no. 2, pp. 257-268, June 2008.
D. W. Lim, S. J. Hoe, and J. S No, “An overview of peak-to-average power ratio reduction schemes for OFDM signals,” IEEE Journal of Communications and Networks, vol. 11, no. 3, pp. 229-239, June 2009.
P. Manhas and M. K. Soni, “A review of PAPR reduction techniques for OFDM system”, MR International Journal of Engineering and Technology, vol. 6, no. 2, pp. 49-53, Dec. 2014.
H. Ochiai and H. Imai, “performance analysis of deliberately clipped OFDM signals”, IEEE Trans. on Communications, vol. 50, no. 1, pp. 89-101, Jan. 2002.
S. H. Leung, S. M. Ju, G. G. Bi, “Algorithm for repeated clipping and filtering in peak-to-average power reduction for OFDM”, Electronics Letters, vol. 38, no. 25, pp. 1726-1727, 2002.
R. van Nee and A. de Wild, “Reducing the peak-to-average power ratio of OFDM”, in Proc. of 48th IEEE Vehicular Technology Conference (VTC 98), vol. 3, May 1998 pp. 2072- 2076.
P. Foomooljareon, W.A. Fernando, K.M. Ahmed, “PAPR reduction of OFDM systems using input sequence envelope scaling”, in Proc. of The 57th IEEE Semiannual Conference on Vehicular Technology (VTC 2003-Spring), 2003, pp. 22-25.
Y. Jiang, “New companding transform for PAPR reduction in OFDM”, IEEE Communications Letters, vol. 14, no. 4, pp. 282- 284, April 2010.
R. W. Baüml, R. F. H. Fisher, and J. B. Hüber, “Reducing the peak-to-average power ratio of multicarrier modulation by selective mapping”, Electronics Letters, vol. 32, no. 22, pp. 2056–2057, Oct. 1996.
N. V. Irukulapati, V. K. Chakka, and A. Jain, “SLM based PAPR reduction of OFDM signal using new phase sequence”, Electronics Letters, vol. 45, no. 24, pp. 1231-1232, Nov. 2009.
A. D. S. Jayalath and C. Tellambura, “SLM and PTS peak power reduction of OFDM signals without side information”, IEEE Trans. Wireless. Communication, vol. 4, no. 5, pp. 2006- 2013, Sep. 2005.
Y. Hassan and M. El-Tarhuni, “A comparison of SLM and PTS peak-to-average power ratio reduction schemes for OFDM systems”, in Proc. of IEEE 2011 4th International Conference on Modeling, Simulation and Applied Optimization (ICMSAO), April 2011, pp. 1-4.
S. Muller, and J. Hubber “OFDM with reduced peak to average power ratio by optimum combination of partial transmit sequences”, Elect. Lett., Communication Letters, vol. 33, no. 5, pp. 368-369, Feb. 1997.
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, no. 3, pp. 86- 88, March 2000.
J. Tellado, “Peak to average power ratio reduction for multicarrier modulation,” PhD Thesis, University of Stanford, Stanford, 1999.
A. Jones, T. Wilkinson, S. Barton, “Block coding scheme for reduction of peak to mean envelope power ratio of multicarrier transmission schemes”, Electronics Letters, vol. 30, no. 25, pp. 2098-2099, 1994.
Downloads
Published
Issue
Section
License
Authors who publish with this journal agree to the following terms:
The copyright to this article is transferred to BRIN if and when the article is accepted for publication. The undersigned hereby transfers any and all rights in and to the paper including without limitation all copyrights to BRIN. The undersigned hereby represents and warrants that the paper is original and that he/she is the author of the paper, except for material that is clearly identified as to its original source, with permission notices from the copyright owners where required. The undersigned represents that he/she has the power and authority to make and execute this assignment. The copyright transfer form can be downloaded here.
The corresponding author signs for and accepts responsibility for releasing this material on behalf of any and all co-authors. This agreement is to be signed by at least one of the authors who have obtained the assent of the co-author(s) where applicable. After submission of this agreement signed by the corresponding author, changes of authorship or in the order of the authors listed will not be accepted.
This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.
