Educational Desktop for Remote Modeling of Wireless Computer Networks subject to Constraints

Abstract

The educational resource considered in this article is a remote access workplace designed to study the structures of computer networks based on combined combinatorial block design, taking into account regular or irregular constraints on connections, as well as key systems based on combinatorial block diagrams, taking into account structural constraints and restrictions on the use of keys. A computer network based on the combined combinatorial block design has internal subnets corresponding to its blocks and external subnets corresponding to its dual blocks. The structures of these networks are specified by regular constraints. Random constraints correspond to possible failures of communications or failures of computers. A computer network equipped with a key system based on a combined combinatorial block design has key pools of nodes, the composition of which corresponds to blocks, while dual blocks include numbers of nodes containing the corresponding keys. Structural restrictions correspond to the exclusion of individual nodes, and the restrictions of the key system consist in the exclusion of individual keys from all node pools (if the key is compromised) or from individual pools (if it is not installed in them). The listed types of restrictions are typical for wireless sensor networks and their key systems. The educational resource allows you to remotely simulate processes in computer networks of both types, taking into account the specified restrictions. Such laboratory workshops play an important role and are an obligatory part of the educational process in the professional training of masters in applied mathematics and informatics.