Channel-surfing re-initialization of CMA

Author

Tong, Lang ; Zeng, Hanks H.

Author_Institution

Dept. of Electr. & Syst. Eng., Connecticut Univ., Storrs, CT, USA

fYear

1997

fDate

16-18 April 1997

Firstpage

45

Lastpage

48

Abstract

One of the unsolved problems in applying the constant modulus algorithm (CMA) is the initialization of CMA and the re-initialization when CMA is trapped in an undesirable local minimum. A new re-initialization scheme for CMA is proposed by exploiting the structure of the minimum mean square error (MMSE) equalizer and connections between the constant modulus and the MMSE equalizers. The proposed scheme, referred to as the channel surfing re-initialization (CSR), searches in the channel parameter space for the constant modulus equalizer with minimum mean square error.

Keywords

equalisers; least mean squares methods; multipath channels; telecommunication channels; CMA; MMSE equalizers; channel parameter space; channel-surfing re-initialization; constant modulus algorithm; constant modulus equalizer; local minimum; minimum mean square error equaliser; two-ray multipath channel; Array signal processing; Blind equalizers; Contracts; Fasteners; Mean square error methods; Noise figure; Sampling methods; Signal to noise ratio; Systems engineering and theory; Vectors;

fLanguage

English

Publisher

ieee

Conference_Titel

Signal Processing Advances in Wireless Communications, First IEEE Signal Processing Workshop on

Conference_Location

Paris, France

Print_ISBN

0-7803-3944-4

Type

conf

DOI

10.1109/SPAWC.1997.630057

Filename

630057