Design of Oversampled Filter Bank Based Widely Linear OQPSK Equalizer

Author

Carson, P.K.S. ; Truong, N.Q.

Author_Institution

Dept. of Electr. & Comput. Eng., California Univ., San Diego, La Jolla, CA, USA

Volume

3

fYear

2007

fDate

15-20 April 2007

Abstract

In this paper, the design and analysis of multirate filter bank (FB) based OQPSK widely linear (WL) oversampled equalizers for frequency selectively channels (FSCs) are studied. We focus on OQPSK signal transmissions in FSCs with various amount of fractionally spaced equalization using WL processing under the framework of FB. We explicitly represent a OQPSK communications system as a FB which allows the study of conditions for perfect reconstruction using a finite length polynomial equalizer. Furthermore, WL FB based MMSE oversampled equalizer designs operating at various sampling rates are presented. Computer simulations are simulated to study the performance of various types of equalizers in FSCs.

Keywords

channel bank filters; equalisers; least mean squares methods; polynomial approximation; quadrature phase shift keying; MMSE oversampled equalizer; computer simulations; finite length polynomial equalizer; fractionally spaced equalization; frequency selectively channels; linear OQPSK equalizer; multirate filter bank; oversampled filter bank; signal transmissions; widely linear oversampled equalizers; Computational modeling; Computer simulation; Equalizers; Filter bank; Frequency; Matrix decomposition; Polynomials; Power capacitors; Sampling methods; Signal processing; Equalizer; Filter Bank; OQPSK;

fLanguage

English

Publisher

ieee

Conference_Titel

Acoustics, Speech and Signal Processing, 2007. ICASSP 2007. IEEE International Conference on

Conference_Location

Honolulu, HI

ISSN

1520-6149

Print_ISBN

1-4244-0727-3

Type

conf

DOI

10.1109/ICASSP.2007.366816

Filename

4217846