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2 Archives of Transport System Telematics

2 2012

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Optimization of channel access in wireless sensor networks

Holecko P., Pirnik R., Bubenikova E.

Archives of Transport System Telematics

2012

Vol. 5, iss. 3

31-34

The objective of the work presented in this paper is to analyse the problem of deployment of TDMA wireless sensor networks in the area of transport telematics from the communication subsystem optimization perspective. The problem of broadcast scheduling has been outlined and a heuristic algorithm has been designed for the optimization of radio channel access control using the TDMA method. The channel utilization was the main optimization goal while eliminating primary and secondary conflicts between the broadcasting stations.

A solution of database system for interactive learning for telematics

Matis P., Franekova M., Bubenikova E.

Archives of Transport System Telematics

2012

Vol. 5, iss. 1

16-21

The paper deals with problems of an information system solution as a support for the education system within the Department of Control and Information Systems (DICS) at the University of Žilina. The primary system is designed for education subjects from the area of intelligent transport systems with Telematics. The paper summarises and describes the existing and planned subjects in the telematic systems specialization. The main part of the paper describes the specification of teachers and students requirements related to these subjects. These specifications are the basis for a practical realization of the database part of the system with features of an interactive learning system. The specified requirements for systems include e.g. a possibility to enter the figures to the database system or to allocate the questions for subjects or selected areas. The database system was designed with a using entity – relational model. To implement the systems the MySQL v 5.0.51b SW platform was used, which is compatible with the existing database in the DICS server. The paper describes a possibility of access to systems as well as problems and solutions of realized database systems security based on cryptography tools.