Biorthogonal wavelets for waveform coding in BPSK and QPSK systems

Author

Rao, Sathyanarayan S. ; Lyall, Michael J. ; Gandhi, Prashant P.

Author_Institution

Dept. of Electr. & Comput. Eng., Villanova Univ., PA, USA

fYear

1994

fDate

20-22 Mar 1994

Firstpage

590

Lastpage

594

Abstract

The authors consider the use of biorthogonal wavelets for baseband waveform coding in traditional BPSK and and PSK digital communication systems. Biorthogonal wavelets can be designed to give better spectral characteristics than orthogonal wavelets. Numerical results for power bandwidth and bandwidth efficiency are given as evidence. A new configuration for the receiver is also presented, where the traditional matched filter is replaced by a filter based on biorthogonal waveforms. The proposed codec is shown to conserve bandwidth at the expense of bit error rate

Keywords

digital communication systems; encoding; filtering and prediction theory; phase shift keying; wavelet transforms; BPSK system; QPSK system; bandwidth conservation; bandwidth efficiency; baseband waveform coding; biorthogonal wavelets; codec; digital communication systems; filter banks; matched filter; power bandwidth; receiver; spectral characteristics; Bandwidth; Baseband; Binary phase shift keying; Codecs; Digital communication; Filters; Frequency; Interference constraints; Intersymbol interference; Quadrature phase shift keying;

fLanguage

English

Publisher

ieee

Conference_Titel

System Theory, 1994., Proceedings of the 26th Southeastern Symposium on

Conference_Location

Athens, OH

ISSN

0094-2898

Print_ISBN

0-8186-5320-5

Type

conf

DOI

10.1109/SSST.1994.287808

Filename

287808