Modified KALMAN filter for MIMO-OFDM time-varying channel tracking
Zhongwen Gao, Shan Ouyang, HU Jiankang · Journal of Guilin University of Electronic Technology · 2007
Channel tracking in wireless mobile communication systems with multiple input multiple output and orthogonal frequency division multiplexing(MIMO-OFDM) is a key technique.When the velocity of mobile station is unknown in receiver,classical KALMAN tracking algorithm cannot get the state coefficient.The designing of a modified KALMAN tracking algorithm capable of tracking the time-varying channel vector and the coefficient simultaneously is proposed in this paper.