Low-complexity serial equalization of doubly-selective channels
Geert J. T. Leus, Imad Barhumi, Marc Moonen · 2003
In this paper, we propose a serial equalizer for doubly-selective channels. We use a Basis Expansion Model (BEM) Finite Impulse Response (FIR) to model the doubly-selective channel and to design the serial equalizer. In contrast to our previous works, we decrease the modeling error of the BEM FIR by fitting the BEM FIR to the true doubly-selective channel over a time-window that is independent of the frequency-resolution of the BEM FIR. We discuss the Serial Linear Equalizer (SLE) as well as the Serial Decision Feedback Equalizer (SDFE).