Iterative channel estimation and turbo equalization for time-varying OFDM systems

We develop a new receiver for orthogonal frequency division multiplexing (OFDM) systems in time-varying channels by embedding channel estimation in a low-complexity block turbo equalizer. A linear minimum mean squared error (MMSE) pilot-assisted channel estimator is presented, and the soft data estimates from the turbo equalizer are used to improve the quality of the channel estimates.

• Type: Conference
• Year: 2008
• Where: ICASSP
• Authors: Kun Fang, Luca Rugini, Geert Leus
• Keywords: Block Turbo Equalizer, ICASSP 2008, Orthogonal Frequency Division Multiplexing, Signal Processing, Turbo Equalizer