[IEEE 2007 14th International Workshop on Systems, Signals and Image Processing and 6th EURASIP Conference focused on Speech and Image Processing, Multimedia Communications and Services - Maribor, Slovenia (2007.06.27-2007.06.30)] 2007 14th International Workshop on Systems, Signals and Image Processing and 6th EURASIP Conference focused on Speech and Image Processing, Multimedia Communications and Services - Modeling methods in OPNET simulations of Tactical Command and Control Information Systems