DocumentCode
2469552
Title
A comparison analysis of two multilevel QAM systems
Author
Engdahl, Karin ; Zigangirov, Kamil Sh
Author_Institution
Dept. of Inf. Technol., Lund Univ., Sweden
fYear
1998
fDate
16-21 Aug 1998
Firstpage
209
Abstract
Two multilevel modulation systems are compared in terms of capacity, under the condition that the average energy per channel use is the same for the two systems. We consider the suboptimal multistage receiver for the Gaussian channel. We conclude that, under these conditions, the capacity for the hexagonal system is close to 1 dB better than the capacity for the rectangular system
Keywords
Gaussian channels; quadrature amplitude modulation; receivers; Gaussian channel; average energy per channel use; capacity; hexagonal system; multilevel QAM systems; multilevel modulation systems; rectangular system; suboptimal multistage receiver; Constellation diagram; Decoding; Error probability; Euclidean distance; Gaussian channels; Information technology; Lattices; Modulation coding; Quadrature amplitude modulation; Upper bound;
fLanguage
English
Publisher
ieee
Conference_Titel
Information Theory, 1998. Proceedings. 1998 IEEE International Symposium on
Conference_Location
Cambridge, MA
Print_ISBN
0-7803-5000-6
Type
conf
DOI
10.1109/ISIT.1998.708810
Filename
708810
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