DocumentCode
785067
Title
Spectral efficiency of M-QAM in frequency reuse radio systems
Author
Wales, S.W.
Author_Institution
Roke Manor Res. Ltd., Romsey, UK
Volume
139
Issue
4
fYear
1992
Firstpage
381
Lastpage
385
Abstract
The spectral efficiency of M-QAM has been investigated for frequency reuse radio systems under the propagation conditions of the land mobile radio environment. The results indicate that, under certain circumstances (of propagation and coverage requirements), increasing the number of levels can lead to an improvement in the spectral efficiency of interference limited systems, but that, as better coverage or service quality is sought, these spectral efficiency improvements diminish.<>
Keywords
amplitude modulation; frequency allocation; mobile radio systems; radiowave propagation; M-QAM; coverage requirements; frequency reuse radio systems; interference limited systems; land mobile radio environment; propagation conditions; quadrature amplitude modulation; service quality; spectral efficiency;
fLanguage
English
Journal_Title
Communications, Speech and Vision, IEE Proceedings I
Publisher
iet
ISSN
0956-3776
Type
jour
Filename
157084
Link To Document