Lower bounds on the capacity of asymmetric two-dimensional (d, ∞)-constraints.
Jiangxin Chen, Paul H. Siegel · 2005
Abstract—We derive lower bounds on the capacity of asymmetric two-dimensional (d, ∞)-constraints from bounds on the output entropy of bit-stuffing encoders for general asymmetric (d, ∞)-constraints on both the square lattice and the hexagonal lattice. For the (d, ∞;1, ∞)-constraint on the square lattice and the (d, ∞;1, ∞;1, ∞)-constraint on the hexagonal lattice, we derive exact encoder output entropies which provide even tighter bounds on the capacity of these constraints. I.