Cover Image

Dwpt Based FFT and ITS Application to SNR Estimation in OFDM Systems

In this paper, wavelet packet (WP) based FFT and its application to SNR estimation is proposed. OFDM systems demodulate data using FFT. The proposed solution computes the exact FFT using WP and its computational complexity is of the same order as FFT, i.e. O (N log2 N). SNR estimation is done in...

Full description

Saved in:
Bibliographic Details
Main Authors: Manzoor, Rana Shahid, Gani, Regina, Jeoti, Varun, Kamel, Nidal, Asif, Muhammad
Format: Citation Index Journal
Published: 2009
Subjects:
TK Electrical engineering. Electronics Nuclear engineering
Online Access:http://eprints.utp.edu.my/4481/1/SPIJ-14.pdf
http://www.cscjournals.org
http://eprints.utp.edu.my/4481/
Tags: Add Tag
No Tags, Be the first to tag this record!
id my.utp.eprints.4481
record_format eprints
spelling my.utp.eprints.44812017-01-19T08:25:26Z Dwpt Based FFT and ITS Application to SNR Estimation in OFDM Systems Manzoor, Rana Shahid Gani, Regina Jeoti, Varun Kamel, Nidal Asif, Muhammad TK Electrical engineering. Electronics Nuclear engineering In this paper, wavelet packet (WP) based FFT and its application to SNR estimation is proposed. OFDM systems demodulate data using FFT. The proposed solution computes the exact FFT using WP and its computational complexity is of the same order as FFT, i.e. O (N log2 N). SNR estimation is done inside wavelet packet based FFT block unlike other SNR estimators which perform SNR estimation after FFT. The data, so analyzed using wavelet packets, is used to perform SNR estimation in colored noise. The proposed estimator takes into consideration the different noise power levels of the colored noise over the OFDM sub-carriers. The OFDM band is divided into several sub-bands using wavelet packet and noise in each sub-band is considered white. The secondorder statistics of the transmitted OFDM preamble are calculated in each subband and the power of the noise is estimated. The proposed estimator is compared with Reddy’s estimator for colored noise in terms of mean squared error (MSE) 2009-04 Citation Index Journal PeerReviewed application/pdf http://eprints.utp.edu.my/4481/1/SPIJ-14.pdf http://www.cscjournals.org Manzoor, Rana Shahid and Gani, Regina and Jeoti, Varun and Kamel, Nidal and Asif, Muhammad (2009) Dwpt Based FFT and ITS Application to SNR Estimation in OFDM Systems. [Citation Index Journal] http://eprints.utp.edu.my/4481/
institution Universiti Teknologi Petronas
building UTP Resource Centre
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknologi Petronas
content_source UTP Institutional Repository
url_provider http://eprints.utp.edu.my/
topic TK Electrical engineering. Electronics Nuclear engineering
spellingShingle TK Electrical engineering. Electronics Nuclear engineering
Manzoor, Rana Shahid
Gani, Regina
Jeoti, Varun
Kamel, Nidal
Asif, Muhammad
Dwpt Based FFT and ITS Application to SNR Estimation in OFDM Systems
description In this paper, wavelet packet (WP) based FFT and its application to SNR estimation is proposed. OFDM systems demodulate data using FFT. The proposed solution computes the exact FFT using WP and its computational complexity is of the same order as FFT, i.e. O (N log2 N). SNR estimation is done inside wavelet packet based FFT block unlike other SNR estimators which perform SNR estimation after FFT. The data, so analyzed using wavelet packets, is used to perform SNR estimation in colored noise. The proposed estimator takes into consideration the different noise power levels of the colored noise over the OFDM sub-carriers. The OFDM band is divided into several sub-bands using wavelet packet and noise in each sub-band is considered white. The secondorder statistics of the transmitted OFDM preamble are calculated in each subband and the power of the noise is estimated. The proposed estimator is compared with Reddy’s estimator for colored noise in terms of mean squared error (MSE)
format Citation Index Journal
author Manzoor, Rana Shahid
Gani, Regina
Jeoti, Varun
Kamel, Nidal
Asif, Muhammad
author_facet Manzoor, Rana Shahid
Gani, Regina
Jeoti, Varun
Kamel, Nidal
Asif, Muhammad
author_sort Manzoor, Rana Shahid
title Dwpt Based FFT and ITS Application to SNR Estimation in OFDM Systems
title_short Dwpt Based FFT and ITS Application to SNR Estimation in OFDM Systems
title_full Dwpt Based FFT and ITS Application to SNR Estimation in OFDM Systems
title_fullStr Dwpt Based FFT and ITS Application to SNR Estimation in OFDM Systems
title_full_unstemmed Dwpt Based FFT and ITS Application to SNR Estimation in OFDM Systems
title_sort dwpt based fft and its application to snr estimation in ofdm systems
publishDate 2009
url http://eprints.utp.edu.my/4481/1/SPIJ-14.pdf
http://www.cscjournals.org
http://eprints.utp.edu.my/4481/
_version_ 1738655344188456960
score 13.211869

Similar Items