The Richardson-Lucy Algorithm Based Demodulation Algorithms for ...

Introduction
Two-dimensional ISI Channel Model
Wiener Based Demodulation Algorithms
Richardson-Lucy Based Demodulation Algorithms
Comparison of Wiener and Richardson-Lucy Based Algorithms
Conclusions
Wiener Based Demodulation Algorithms
BER Performance
Iterative Filtering with Progressive Thresholding
Wiener based iterative filtering
Progressive thresholding
⎧
⎨ 1/2 if s (q) (x, y) ≥ T (q)
s (q) (x, y) ⇐ −1/2 if s
⎩
(q) (x, y) < −T (q)
s (q) (x, y) elsewhere
(10)
where T : {0, 1, 2, . . .} → [0, 1/2] is a monotone decreasing
function.
Hard-thresholding
Zhijun Zhao and Richard E. Blahut
The Richardson-Lucy Algorithm Based Demodulation Algorithm