Optimal correlating transform for erasure channels
Gianmarco Romano, Pierluigi Salvo Rossi, F. Palmieri · IEEE Signal Processing Letters · 2005
In this letter, we derive a gradient-based algorithm for computing the optimal transform when coefficients are transmitted over an erasure channel whose statistics are known. The discrete transform introduces correlation among the coefficients with consequent performance improvement against losses. Simulations show appreciable improvements over standard schemes and also good robustness when loss probabilities are only roughly estimated.