Title :
A wavelet-based multicarrier modulation scheme
Author :
Mtika, Chatonda J. ; Nunna, Ramakrishna
Author_Institution :
ECE Dept., Stevens Inst. of Technol., Hoboken, NJ, USA
Abstract :
This paper presents a wavelet-based multicarrier modulation scheme for communication over non-ideal channels. The modulation and demodulation is accomplished by using perfect reconstruction filter banks (PRFBs). We show that this scheme exhibits a high level of robustness to intersymbol interference (ISI) even in poor signal-to-noise ratio (SNR) environments while enjoying all the benefits associated with multicarrier systems. In addition, this scheme achieves acceptable performance even when filters with relatively poor spectral containment are used, i.e., short subband filters can be used leading to reduction in processing time in implementations of modulators and demodulators
Keywords :
demodulation; intersymbol interference; modulation; wavelet transforms; demodulation; intersymbol interference; nonideal channels; perfect reconstruction filter banks; poor signal-to-noise ratio environments; processing time; robustness; short subband filters; spectral containment; wavelet-based multicarrier modulation scheme; Bandwidth; Channel bank filters; DSL; Filter bank; Flexible printed circuits; Intersymbol interference; Noise level; Noise robustness; Paper technology; Signal to noise ratio;
Conference_Titel :
Circuits and Systems, 1997. Proceedings of the 40th Midwest Symposium on
Conference_Location :
Sacramento, CA
Print_ISBN :
0-7803-3694-1
DOI :
10.1109/MWSCAS.1997.662212
