Multilevelmodulations have good spectral efficiency, although at the expenseofpower efficiency. In mobile wireless systems, where there are strict powerandbandwidth constrains, we must maximize the power efficiency. This means the useofhigh-efficiencyamplificationschemes at the transmitter sideandcompact constellations combined with powerful equalizers at the receiver side. In this paper we considerSC-FDEschemes (Single-Carrier with Frequency-Domain Equalization) combined withmultilevelconstellations that can be decomposed as the sumofBPSK(Binary Shift Keying)signals. These components can be separately amplifiedandbesides this decomposition allows the definitionofnewefficientIB-DFE (Iterative Block Decision Feedback Equalization) implementations suitable formultilevelconstellations, with low impactonsystem complexity.
|Title of host publication||Proceedings of IEEE Military Communications Conference (MILCOM 2013)|
|Publication status||Published - 1 Jan 2013|
|Event||MILCOM 2013: IEEE Military Communications Conference - |
Duration: 1 Jan 2013 → …
|Conference||MILCOM 2013: IEEE Military Communications Conference|
|Period||1/01/13 → …|