FFT-HQ Channel Estimating Algorithm in MB-OFDM UWB System

Author

Li, Jianqiang ; Bao, Zhihua ; Zhang, Shibing

Author_Institution

Sch. of Electron. & Inf., Nantong Univ., Nantong, China

fYear

2011

fDate

18-20 April 2011

Firstpage

457

Lastpage

460

Abstract

Channel estimation is an essential technique for the orthogonal frequency division multiplexing (OFDM) based ultra-wide band (UWB) system. In this paper, a novel channel estimating method, fast Fourier transform-Hannan-Quinn(FFT-HQ) algorithm, is proposed. Based on the estimated channel response, the algorithm weighted the eigenvalue of the estimated channel response and obtained the length of rectangular window. Therefore, the windowed UWB channel response is found. The simulations showed that the FFT-HQ algorithm has 1~2 dB margins over FFT-based algorithm.

Keywords

OFDM modulation; channel estimation; eigenvalues and eigenfunctions; fast Fourier transforms; ultra wideband communication; channel response estimation; eigenvalue; fast Fourier transform-Hannan-Quinn algorithm; multiband-OFDM UWB system; orthogonal frequency division multiplexing; ultra-wide band system; Bit error rate; Channel estimation; Estimation; Frequency response; OFDM; Signal to noise ratio; Training; Hannan-Quinnt; OFDM; UWB; Wireless Communications; channel estimation;

fLanguage

English

Publisher

ieee

Conference_Titel

Communications and Mobile Computing (CMC), 2011 Third International Conference on

Conference_Location

Qingdao

Print_ISBN

978-1-61284-312-4

Type

conf

DOI

10.1109/CMC.2011.97

Filename

5931294