Universal DVB-3GPP Broadcast Layer: An Enabler for New Business in Mobile Broadcasting Landscape

Low-Complexity Demapping Algorithm for Two-Dimensional Non-Uniform Constellations

“…1D-NUCs have a squared shape with non-uniform distance between the constellation symbols, and they are formed by two non-uniform pulse amplitude modulation (PAM) signals [8]. Hence, the complexity can be drastically reduced by using a one-dimensional demapper [9].…”

Optimization and Performance of Non-Uniform Rotated Constellations With Multi-RF Transmission Techniques

“…ATSC 3.0 (Advanced Television Systems Committee -Third Generation) is the first standard that includes 2D-NUCs from 16NUC to 256NUC orders, and 1D-NUCs for new high-orders such as 1024NUC (or 1kNUC) and 4096NUC (or 4kNUC) [7]. 1D-NUCs have a squared shape with non-uniform distance between the constellation symbols [8]. 2D-NUCs are designed by relaxing the square shape constraint, with a better performance than 1D-NUCs but with a higher receiver complexity since they cannot be separated into two independent I/Q components [9].…”