Title :
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
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;
Conference_Titel :
Computer Science and Automation Engineering (CSAE), 2012 IEEE International Conference on
Conference_Location :
Zhangjiajie
Print_ISBN :
978-1-4673-0088-9
DOI :
10.1109/CSAE.2012.6272598
