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Comparison of Companding based PAPR Techniques for OFDM Systems

by Eshaan Verma, R. K. Mehrotra
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International Journal of Computer Applications
Foundation of Computer Science (FCS), NY, USA
Volume 75 - Number 4
Year of Publication: 2013
Authors: Eshaan Verma, R. K. Mehrotra
10.5120/13103-0405

Eshaan Verma, R. K. Mehrotra . Comparison of Companding based PAPR Techniques for OFDM Systems. International Journal of Computer Applications. 75, 4 ( August 2013), 40-42. DOI=10.5120/13103-0405

@article{ 10.5120/13103-0405,
author = { Eshaan Verma, R. K. Mehrotra },
title = { Comparison of Companding based PAPR Techniques for OFDM Systems },
journal = { International Journal of Computer Applications },
issue_date = { August 2013 },
volume = { 75 },
number = { 4 },
month = { August },
year = { 2013 },
issn = { 0975-8887 },
pages = { 40-42 },
numpages = {9},
url = { https://ijcaonline.org/archives/volume75/number4/13103-0405/ },
doi = { 10.5120/13103-0405 },
publisher = {Foundation of Computer Science (FCS), NY, USA},
address = {New York, USA}
}
%0 Journal Article
%1 2024-02-06T21:43:25.942279+05:30
%A Eshaan Verma
%A R. K. Mehrotra
%T Comparison of Companding based PAPR Techniques for OFDM Systems
%J International Journal of Computer Applications
%@ 0975-8887
%V 75
%N 4
%P 40-42
%D 2013
%I Foundation of Computer Science (FCS), NY, USA
Abstract

3GPP LTE has utilized the OFDMA for the downlink which provides spectrum flexibility, inherent resistance to Inter symbol Interference (ISI) and many more. However 3GPP LTE systems suffer from a very common problem known as Peak to Average Power ratio. The present paper tried to discuss the companding based techniques for single user OFDMA systems. We have tried our simulations for L=1-4 oversampling rate and 256 FFT matrix and 128 random data bits to decrease the PAPR by overlooking on the complementary cumulative distribution function. It is observed in the simulation that Peak to Average Power ratio reduces to the tune of 6-7db from the original unmodified system.

References
  1. M. M. Rana, "Clipping based PAPR reduction method for LTE OFDMA systems," IJECS-IJENS Vol. 0, No. 05, 2010.
  2. M. M. Rana, Md. Saiful Islam & Abbas Z kouzani," Peak to average Power ratio analysis for LTE systems," 2010 Second International Conference on Communication Software & Networks.
  3. Tao Jiang," An Overview of Peak to Average Power ratio reduction techniques for OFDM signals," IEEE Transactions on Broadcasting, Vol. 54, No. 2, June 2008.
  4. . X. Huang, J. Lu, J. Zheng, J. Chuang and J. Gu, "Reduction of peak-to-average power ratio of OFDM signals with companding transform," Electronics Letters, 12 April 2001, vol. 37, No. 8, p 506-507.
  5. X. Wang, T. Tjhung, and C. Ng, "Reduction of peak-to-average power ratio of OFDM system using a companding technique, IEEEE Transactions of Broadcasting, Vol, 45m, No. 3, Sept. 1999.
  6. R. Van Nee & A. de Wild," Reducing the Peak to Average Power ratio of OFDM," Proceedings IEEE Veh. Tech. Conf. , May 1998, pp 2072-2076.
  7. R. Chackochan, H. Soni," Peak to Average power ratio reduction in OFDM for a WLAN network using SLM Techniques", IEEE Conf. 2011.
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  9. B. Petrovaska, L. Gavriloska & V. Rakovic, ''Companding technique for PAPR reduction in DVB-T systems", 18th TELFOR 2010.
Index Terms

Computer Science
Information Sciences

Keywords

CCDF Clipping PAPR OFDMA OFDM

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