DocumentCode :
382670
Title :
4D morphology model with feedback loop
Author :
Lee, David J Y ; Basmaji, Michel
Author_Institution :
Cisco Syst., San Jose, CA, USA
Volume :
2
fYear :
2002
fDate :
2002
Firstpage :
839
Abstract :
This paper addresses innovative ways of dealing with the impact of morphology on network engineering. There are many different morphologies and each has unique impact on the network engineering and planning. For example, different types of trees will have different impact on the propagation. Also, it behaves differently if it is weather sensitive. In this invention, a 4D (time of the year, height, width and length of the morphology) database and associated algorithm are proposed to deal with the impact on system engineering. The key point of this algorithm is that it includes means to feedback and integrate measured data from the field so that the 4D morphology model can be tuned (supports full flexibility) to better handle different situations. Inventions include first the fundamental concept of dealing with morphology in a integrated way with system propagation. The morphology specific slope will be derived and applied to the existing model. Second, is the algorithm of deriving these morphology slopes. Third, is to include the morphology in the calculation of shadow loss. Fourth, is to identify and integrate the morphology impact on time variance and associated engineering algorithm.
Keywords :
cellular radio; feedback; radio networks; radiowave propagation; telecommunication network planning; 4D database; 4D morphology model; cellular engineering; engineering algorithm; feedback loop; generic propagation model; inventions; mobile radio; morphology slopes; network engineering; network planning; network planning tool; shadow loss; system propagation; time variance; trees; Data engineering; Data mining; Databases; Feedback loop; Interference; Morphology; Systems engineering and theory; Testing;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Vehicular Technology Conference, 2002. Proceedings. VTC 2002-Fall. 2002 IEEE 56th
ISSN :
1090-3038
Print_ISBN :
0-7803-7467-3
Type :
conf
DOI :
10.1109/VETECF.2002.1040718
Filename :
1040718
Link To Document :
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