NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Back to Results
The performance evaluation of a new neural network based traffic management scheme for a satellite communication networkA neural-network-based traffic management scheme for a satellite communication network is described. The scheme consists of two levels of management. The front end of the scheme is a derivation of Kohonen's self-organization model to configure maps for the satellite communication network dynamically. The model consists of three stages. The first stage is the pattern recognition task, in which an exemplar map that best meets the current network requirements is selected. The second stage is the analysis of the discrepancy between the chosen exemplar map and the state of the network, and the adaptive modification of the chosen exemplar map to conform closely to the network requirement (input data pattern) by means of Kohonen's self-organization. On the basis of certain performance criteria, whether a new map is generated to replace the original chosen map is decided in the third stage. A state-dependent routing algorithm, which arranges the incoming call to some proper path, is used to make the network more efficient and to lower the call block rate. Simulation results demonstrate that the scheme, which combines self-organization and the state-dependent routing mechanism, provides better performance in terms of call block rate than schemes that only have either the self-organization mechanism or the routing mechanism.
Document ID
19930026932
Document Type
Conference Paper
Authors
Ansari, Nirwan (NASA Lewis Research Center Cleveland, OH, United States)
Liu, Dequan (New Jersey Inst. of Technology Newark, United States)
Date Acquired
August 15, 2013
Publication Date
January 1, 1991
Publication Information
Publication: In: GLOBECOM '91 - IEEE Global Telecommunications Conference, Phoenix, AZ, Dec. 2-5, 1991, Conference Record. Vol. 1 (A93-10926 01-32)
Subject Category
COMMUNICATIONS AND RADAR
Funding Number(s)
CONTRACT_GRANT: NAG3-1244
Distribution Limits
Public
Copyright
Other