DocumentCode :
3540396
Title :
Design and implementation of orthogonal wavelet division multiplexing (OHWDM) with minimum bit error rate
Author :
Raajan, N.R. ; Monisha, B. ; Kumar, M. Ram ; Philomina, A. Jenifer ; Priya, M.V. ; Parthiban, D. ; Suganya, S.
Author_Institution :
Dept. of Electron. & Commun. Eng., SASTRA Univ., Thanjavur, India
fYear :
2011
fDate :
8-9 Dec. 2011
Firstpage :
122
Lastpage :
127
Abstract :
In this paper, we propose a new modulation/multiplexing system using wavelet transform. This new modulation technique makes use of the existing standard (orthogonal frequency division multiplexing) OFDM system and replacing the Fourier transform blocks by wavelet transform blocks. There are different types of wavelet transforms are available, out of which 4 were chosen. They are Haar, Daubechies4, Biorthogonal and reverse Biorthogonal transforms. The performance of the wavelet based OFDM system using various modulations like BPSK, DPSK, QPSK, DQPSK, OQPSK and 16-QAM was assessed by various parameters such as bit error rate, eye diagram and constellation diagram. The best among all the transforms was concluded to be the haar transform and the best modulation was BPSK. The sample results of all the transforms with bpsk with an SNR of 18db are as shown. The proposed system is named (orthogonal haar wavelet division multiplexing) OHWDM.
Keywords :
Fourier transforms; Haar transforms; OFDM modulation; error statistics; wavelength division multiplexing; wavelet transforms; 16-QAM; BPSK; Biorthogonal transforms; DQPSK; Daubechies4 transforms; Fourier transform; Haar transforms; OHWDM; OQPSK; constellation diagram; eye diagram; minimum bit error rate; modulation-multiplexing system; orthogonal Haar wavelet division multiplexing; orthogonal frequency division multiplexing system; wavelet based OFDM system; wavelet transform; Binary phase shift keying; Bit error rate; Computer languages; Multiplexing; Silicon; BER; OFD; OHWDM; SNR; Wavelet transforms;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Trendz in Information Sciences and Computing (TISC), 2011 3rd International Conference on
Conference_Location :
Chennai
Print_ISBN :
978-1-4673-0134-3
Type :
conf
DOI :
10.1109/TISC.2011.6169097
Filename :
6169097
Link To Document :
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