Description  Claims  Drawing  Cited references 

US20130215942A1   [0010] 
WO2010024619A2   [0011] 

Multilevel codes for unequal error protection   [0018] 
Multilevel coded modulation for unequal error protection and multistage decoding - Part I: Symmetric constellations   [0018] 
Multilevel coded modulation for unequal error protection and multistage decoding - Part II: Asymmetric constellations   [0018] 
On the Design of Modern Multilevel Coded Modulation for Unequal Error Protection Communications   [0018] 
Unequal error protection multilevel codes and hierarchical modulation for multimedia transmission   [0018] 
Modeling of the impact of non-linear propagation effects in uncompensated optical coherent transmission links   [0043]