A novel channel estimator for turbo decoding in stationary and non-stationary flat fading channel

Author

Wee-Peng Ang ; Garg, Hari Krishna

Author_Institution

Sch. of Electr. & Electron. Eng., NTU

fYear

2004

fDate

7-7 Sept. 2004

Firstpage

419

Lastpage

423

Abstract

A new and efficient fast Fourier transform (FFT) channel estimation filter with an integrated fading rate calculator is developed for turbo decoding in a flat fading channel. It removes the need for a-priori knowledge of the channel fading rate for good performance which is a key requirement in many filters in the existing literatures. Under both time-invariant and time-varying fading rate, it achieves BER performance close to the optimum Wiener filter with a lower computational count

Keywords

channel estimation; decoding; error statistics; fading channels; fast Fourier transforms; mobile radio; radiofrequency filters; time-varying channels; turbo codes; BER; bit error rate; channel estimation; channel estimation filter; fast Fourier transform; nonstationary flat fading channel; stationary flat fading channel; time-varying fading channel; turbo decoding; Bit error rate; Channel estimation; Cutoff frequency; Decoding; Fading; Fast Fourier transforms; Mobile communication; Phase detection; Rayleigh channels; Wiener filter;

fLanguage

English

Publisher

ieee

Conference_Titel

Communications Systems, 2004. ICCS 2004. The Ninth International Conference on

Conference_Location

Singapore, China

Print_ISBN

0-7803-8549-7

Type

conf

DOI

10.1109/ICCS.2004.1359411

Filename

1359411