Title :
The capacity loss of dense constellations
Author :
Koch, Tobias ; Martinez, Alfonso ; Fàbregas, Albert Guillén i
Abstract :
We determine the loss in capacity incurred by using signal constellations with a bounded support over general complex-valued additive-noise channels for suitably high signal-to-noise ratio. Our expression for the capacity loss recovers the power loss of 1.53 dB for square signal constellations.
Keywords :
channel capacity; signal processing; capacity loss; dense constellations; general complex-valued additive-noise channels; high signal-to-noise ratio; loss 1.53 dB; power loss; signal constellations; square signal constellations; Constellation diagram; Entropy; Quadrature amplitude modulation; Random variables; Signal to noise ratio; Upper bound;
Conference_Titel :
Information Theory Proceedings (ISIT), 2012 IEEE International Symposium on
Conference_Location :
Cambridge, MA
Print_ISBN :
978-1-4673-2580-6
Electronic_ISBN :
2157-8095
DOI :
10.1109/ISIT.2012.6283482
