DocumentCode
1256764
Title
Forward link capacity limit of coded FFH/CDMA multiuser mobile radios
Author
Kawahara, T. ; Matsumoto, T.
Author_Institution
NTT Radio Commun. Syst. Lab., Kanagawa, Japan
Volume
27
Issue
21
fYear
1991
Firstpage
1918
Lastpage
1919
Abstract
The theoretical limit of the forward link (base to mobile) user capacity of fast frequency hopping code division multiple access (FFH/CDMA) mobile communication systems with error correction coding is investigated. The channel cutoff rate of coded FFH/CDMA channels is calculated and the optimal code rate that maximises the user capacity is determined. It is shown that with deletion-free transmission, the frequency efficiency of an FFH/CDMA channel coded at the optimal code rate is 47% higher than without coding.
Keywords
code division multiple access; error correction codes; frequency agility; mobile radio systems; radio links; channel cutoff rate; coded FFH/CDMA multiuser mobile radios; deletion-free transmission; error correction coding; fast frequency hopping code division multiple access; forward link capacity limit; frequency efficiency; mobile communication systems; optimal code rate; user capacity;
fLanguage
English
Journal_Title
Electronics Letters
Publisher
iet
ISSN
0013-5194
Type
jour
DOI
10.1049/el:19911191
Filename
98847
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