Title :
Quadrature amplitude modulation schemes with modified signal constellations for a wideband satellite communications system
Author :
Kim, Junghwan ; Liu, Jian ; Kwatra, S.C.
Author_Institution :
Dept. of Electr. Eng. & Comput. Sci., Toledo Univ., OH, USA
Abstract :
Quadrature amplitude modulation schemes with modified signal constellation are proposed. Under the peak power constraint, modified QAM schemes can achieve a significant power gain over conventional QAM schemes in the satellite channel
Keywords :
quadrature amplitude modulation; satellite communication; telecommunication channels; trellis coded modulation; TCM; modified QAM; modified signal constellations; peak power constraint; power gain; quadrature amplitude modulation; satellite channel; wideband satellite communications system; Bandwidth; Constellation diagram; Euclidean distance; Image generation; Image resolution; Phase shift keying; Quadrature amplitude modulation; Satellite communication; Supercomputers; Wideband;
Conference_Titel :
Military Communications Conference, 1995. MILCOM '95, Conference Record, IEEE
Conference_Location :
San Diego, CA
Print_ISBN :
0-7803-2489-7
DOI :
10.1109/MILCOM.1995.483523
