Performance evaluation of channel estimation based on adaptive filters and adaptive guard interval for mobile WiMAX

Author

Pham-Hong, Lien ; Nguyen-Duc, Quang ; Luu-Thanh, Tra

Author_Institution

Univ. of Tech. Educ., Ho Chi Minh City, Vietnam

Volume

1

fYear

2012

fDate

25-27 May 2012

Firstpage

283

Lastpage

287

Abstract

In this paper, the channel estimation algorithms are studied for mobile WiMAX standard. The comb-pilot type is used for channel estimation algorithms. We constructed an channel estimation algorithm based on two adaptive filters: Kalman and extended Kalman. Then we combined them with adaptive GI (guard interval) optimization algorithm. A performance analysis showed that depending on complex or simple computation, we can choose EKF (Extended Kalman Filter) estimator or adaptive GI with Kalman estimator.

Keywords

Kalman filters; WiMax; adaptive filters; computer network performance evaluation; nonlinear filters; optimisation; EKF estimator; adaptive GI optimization algorithm; adaptive filters; adaptive guard interval; channel estimation algorithms; comb-pilot type; extended Kalman filters; guard interval; mobile WiMAX standard; performance analysis; performance evaluation; Adaptation models; Bit error rate; Channel estimation; Kalman filters; Mobile communication; OFDM; WiMAX; Kalman flter; adaptive Guard insertion; estimation channel; mobile WiMAX;

fLanguage

English

Publisher

ieee

Conference_Titel

Computer Science and Automation Engineering (CSAE), 2012 IEEE International Conference on

Conference_Location

Zhangjiajie

Print_ISBN

978-1-4673-0088-9

Type

conf

DOI

10.1109/CSAE.2012.6272598

Filename

6272598