Research Article
Performance Analysis of DWT-OFDM and FFT-OFDM using Various Digital Modulation Techniques and Channel Coding
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International Journal of Computer Applications
Foundation of Computer Science (FCS), NY, USA
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| Volume 128 - Issue 11 |
| Published: October 2015 |
| Authors: Pratima Manhas, M.K Soni |
10.5120/ijca2015906674
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Pratima Manhas, M.K Soni . Performance Analysis of DWT-OFDM and FFT-OFDM using Various Digital Modulation Techniques and Channel Coding. International Journal of Computer Applications. 128, 11 (October 2015), 34-39. DOI=10.5120/ijca2015906674
@article{ 10.5120/ijca2015906674,
author = { Pratima Manhas,M.K Soni },
title = { Performance Analysis of DWT-OFDM and FFT-OFDM using Various Digital Modulation Techniques and Channel Coding },
journal = { International Journal of Computer Applications },
year = { 2015 },
volume = { 128 },
number = { 11 },
pages = { 34-39 },
doi = { 10.5120/ijca2015906674 },
publisher = { Foundation of Computer Science (FCS), NY, USA }
}
%0 Journal Article
%D 2015
%A Pratima Manhas
%A M.K Soni
%T Performance Analysis of DWT-OFDM and FFT-OFDM using Various Digital Modulation Techniques and Channel Coding%T
%J International Journal of Computer Applications
%V 128
%N 11
%P 34-39
%R 10.5120/ijca2015906674
%I Foundation of Computer Science (FCS), NY, USA
Abstract
Orthogonal frequency division multiplexing (OFDM) is a type of multicarrier modulation technique in which available bandwidth is divided into narrow bands at different frequencies. It is used to compress a large amount of data into a small amount of bandwidth. This is possible by dividing a large amount of data into smaller parts, then sending that data simultaneously over a number of frequencies. OFDM allows a large amount of data to be transmitted quickly and reliably, with a minimum of loss or interference. As OFDM is used in various applications like Wi-Fi, 4G, DAB & WiMax, so its performance is an important factor and for this Bit Error ratio (BER) is calculated .This paper deals with the comparison between DWT based OFDM and FFT based OFDM for various digital modulation techniques and channel coding in terms of Bit error rate calculation. Simulation results shows that FFT based OFDM have better results as compared to DWT based OFDM.
References
- Nee, Richard van, and Ramjee Prasad. OFDM for wireless multimedia communications. Artech House, Inc., 2000.
- Jha, Uma Shanker, and Ramjee Prasad. OFDM towards fixed and mobile broadband wireless access. Artech House, Inc., 2007.
- Liu, Hui, and Guoqing Li. OFDM-based broadband wireless networks: design and optimization. John Wiley & Sons, 2005.
- Abdullah, Khaizuran, and Zahir M. Hussain. "Studies on dwt-ofdm and fft-ofdm systems." IEEE International Conference on Communication, Computer and Power. 2009.
- Saad, Waleed, et al. "An efficient technique for OFDM system using discrete wavelet transform." Advances in Grid and Pervasive Computing. Springer Berlin Heidelberg, 2010. 533-541.
- Abdullah, Khaizuran, Amin Z. Sadik, and Zahir M. Hussain. "On the dwt-and wpt-ofdm versus fft-ofdm." GCC Conference & Exhibition, 2009 5th IEEE. IEEE, 2009.
- Veena, M. B., and MN Shanmukha Swamy. "Performance analysis of DWT based OFDM over FFT based OFDM and implementing on FPGA." International Journal of VLSI Design & Communication Systems (VLSICS) 2.3 (2011): 119-130.
- Gupta, Mahesh Kumar, and S. Tiwari. "Performance evaluation of conventional and wavelet based OFDM system." AEU-International Journal of Electronics and Communications 67.4 (2013): 348-354.
- Ooi, Andre Ken Lee, Micheal Drieberg, and Varun Jeoti. "DWT based FFT in practical OFDM systems." TENCON 2006. 2006 IEEE Region 10 Conference. IEEE, 2006.
- El-Hamid, Zahraa Abd, et al. "FFT/DWT/DCT OFDM channel estimation using EM algorithm in the presence of chaotic interleaving." Computer Engineering Conference (ICENCO), 2012 8th International. IEEE, 2012.
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