The effects of shift-invariance property in DTCWT-OFDM system

Author

Nerma, Mohamed H M ; Jagadish, Varun Jeoti ; Kamel, Nidal Nidal S

Author_Institution

Dept. of Electron. Eng., Sudan Univ. of Sci. & Technol., Khartoum, Sudan

fYear

2012

fDate

18-20 March 2012

Firstpage

17

Lastpage

21

Abstract

This paper proposed a new OFDM system based on dual - tree complex wavelet transform (DTCWT). In this work, the advantages of the shift invariance property are shown from the results of the average bit error rate (BER) performance of the proposed system under different filters length. The results are compared with that of the conventional OFDM and wavelet packet modulation (WPM) in Rayleigh channel environment. Simulation results show the superior of the OFDM based on DTCWT over the conventional OFDM and WPM systems.

Keywords

OFDM modulation; Rayleigh channels; filtering theory; wavelet transforms; DTCWT-OFDM system; Rayleigh channel environment; average bit error rate; dual tree complex wavelet transform; filters length; shift invariance property; Bit error rate; Delay; Modulation; OFDM; Wavelet packets; BER; DT-CWT; FFT; Multicarrier Modulation; OFDM; Rayleigh Channel; Shift-invariance Property; WPT;

fLanguage

English

Publisher

ieee

Conference_Titel

Innovations in Information Technology (IIT), 2012 International Conference on

Conference_Location

Abu Dhabi

Print_ISBN

978-1-4673-1100-7

Type

conf

DOI

10.1109/INNOVATIONS.2012.6207727

Filename

6207727