DocumentCode
1281384
Title
Implementation and performance of QAM-level-controlled adaptive modulation for land mobile communications
Author
Hamaguchi, K. ; Kamio, Y. ; Moriyama, E.
Author_Institution
Digital Commun. Sect., Minist. of Posts & Telecommun., Tokyo, Japan
Volume
33
Issue
18
fYear
1997
fDate
8/28/1997 12:00:00 AM
Firstpage
1529
Lastpage
1531
Abstract
The hardware implementation and performance of an adaptive modulation system in which a suitable level of quadrature amplitude modulation (QAM) is selected for each time slot are reported for land mobile communications. The authors confirm that the system provides a twofold improvement in spectral efficiency compared to a non-adaptive modulation system
Keywords
adaptive systems; land mobile radio; quadrature amplitude modulation; QAM-level-controlled adaptive modulation; land mobile communications; spectral efficiency; time slot;
fLanguage
English
Journal_Title
Electronics Letters
Publisher
iet
ISSN
0013-5194
Type
jour
DOI
10.1049/el:19971055
Filename
629638
Link To Document