Multilevel coding for non-orthogonal broadcast

This paper defines an information-theoretical framework for non-orthogonal broadcast systems with multilevel coding and gives design guidelines for the rate selection of multiple broadcast streams. This description includes hierarchical modulation and superposition coding with codes defined in a finite field as a special case. We show how multilevel coding can be applied to multiple antennas where, in contrast to most spacetime coding and hierarchical modulation schemes, no capacity loss occurs.This work was supported by the Catalan and Spanish Governments under SGR (2009SGR1046) and CICYT (TEC2011-29006-C03-01), respectively. © 2014 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works