International Journal of Reconfigurable Computing / 2012 / Article / Fig 4

Research Article

Configurable Transmitter and Systolic Channel Estimator Architectures for Data-Dependent Superimposed Training Communications Systems

Figure 4

Grey-coded 64-QAM constellation used in the mapper module. (a) The 4-QAM and 16-QAM constellations are delimited with a dashed lines; (b) label guide for identifying the constellation point number.
236372.fig.004a
(a)
236372.fig.004b
(b)