Optimum-Weighted RLS Channel Estimation for Time-Varying Fast Fading MIMO Channels

— A multiple-input multiple-output (MIMO) system, where multiple antennas are used at both transmitter and receiver, has been a promising technique for realizing highspeed wireless communications. In mobile communications, we often experience a considerable signal fluctuation due to timevarying fading channels. In this paper, we derive an optimumweighted least-squares channel estimation considering the spatial correlation as well as the channel dynamics, and propose an efficient recursive method for channel tracking.

• Type: Conference
• Year: 2007
• Where: ICC
• Authors: Toshiaki Koike
• Keywords: Communications, Considerable Signal fluctuation, Efficient Recursive Method, ICC 2007, Least-squares Channel Estimation