DVB-S2 is the recently defined successor to the current DVB-S standard [4] and DVB-DSNG standard (EN 301210); enabling new services via significantly higher data rates and allowing for a long-term migration. For unicasting applications, the DVB-S2 system includes Adaptive Coding and Modulation (ACM) techniques [1], in order to differentiate the error protection according to the propagation cond...

This work considers multiple-input multiple-output (MIMO) communication systems using hierarchical modulation. A disadvantage of the maximum-likelihood (ML) MIMO detector is that computational complexity increases exponentially with the number of transmit antennas. To reduce complexity, we propose a hierarchical modulation scheme to be used in MIMO transmission where base and enhancement layers...

Hierarchical models of auditory processing often posit that optimal stimuli, i.e., those eliciting a maximal neural response, will increase in bandwidth and decrease in modulation rate as one ascends the auditory neuraxis. Here, we tested how bandwidth and modulation rate interact at several loci along the human central auditory pathway using functional MRI in a cardiac-gated, sparse acquisitio...