Normalization Factor for Three-Level Hierarchical 64QAM Scheme

Title & Authors
Normalization Factor for Three-Level Hierarchical 64QAM Scheme
You, Dongho; Kim, Dong Ho;

Abstract
In this paper, we consider hierarchical modulation (HM), which has been widely exploited in digital broadcasting systems. In HM, each independent data stream is mapped to the modulation symbol with different transmission power and normalization factors of conventional M-QAM cannot be used. In this paper, we derive the method and formula for exact normalization factor of three-level hierarchical 64QAM.
Keywords
S. Lee, et al., "Transmission performance analysis for terrestrial digital broadcast system according to hierarchical modulation factor(${\alpha}$ )," J. KICS, vol. 37A, no. 9, pp. 728-737, Sept. 2012.