DocumentCode :
1422097
Title :
Propagation aspects of frequency-hopping spread spectra
Author :
Fitton, M.P. ; Nix, A.R. ; Beach, M.A.
Author_Institution :
Centre for Commun. Res., Bristol Univ., UK
Volume :
145
Issue :
3
fYear :
1998
fDate :
6/1/1998 12:00:00 AM
Firstpage :
249
Lastpage :
255
Abstract :
The effect of frequency hopping spread spectra (FH-SS) on mobile channel characteristics is evaluated. Employing propagation studies, statistical analysis and simulation models, it is shown that the frequency-hopped channel displays improved characteristics when compared to the nonhopped case. Furthermore, the parameters specifically associated with the frequency-hopped channel are characterised, such as hop rate and system bandwidth. It is shown that the long-term channel statistics are unchanged by hopping. However, the short-term fading statistics are improved, and can be exploited to provide an overall increase in the quality of service. The short-term statistics of the frequency-hopped channel are derived, enabling prediction of the performance of FH-SS
Keywords :
fading; frequency hop communication; land mobile radio; radiowave propagation; spread spectrum communication; statistical analysis; ARQ; FH-SS; coding; frequency hopped channel; frequency-hopping spread spectra; hop rate; interleaving; long-term channel statistics; mobile channel characteristics; performance; propagation studies; quality of service; short-term fading statistics; simulation models; statistical analysis; system bandwidth;
fLanguage :
English
Journal_Title :
Microwaves, Antennas and Propagation, IEE Proceedings
Publisher :
iet
ISSN :
1350-2417
Type :
jour
DOI :
10.1049/ip-map:19981774
Filename :
710408
Link To Document :
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