The development of random multiple access (RMA) algorithms, which are based on the successive interference cancellation (SIC) has attracted attention of scientists in the last years. In this paper a new RMA algorithm for centralized networks, which we refer to as Multi-FS-TREE/SIC is introduced and analyzed. The algorithm is a combination of Multi-FS-ALOHA and SICTA and provides transmission rate more than 0.6.

The problem of Pareto-efficient resource allocation among rational agents is considered. The mechanism that implements efficient allocation as Nash equilibrium in case when utility is transferable among agents is offered. The approach to solution of allotment problems as multicriteria public choice problems lies in the basis of this mechanism, that allows to implement Groves-Ledyard mechanism, which was initially designated to the solution of public good problems. It is shown, that there is exist the only Nash equilibrium in a game among agents induced by the mechanism developed. For the case when utility functions are private information of agents, it is shown, that efficient allocation may be realized via an iterative bargaining process based on this mechanism, if agents behave according to Cournot dynamics. Possibility to reduce agent’s messages space to a scalar one in iterative bargaining process is demonstrated. It is also shown that mechanism developed may be inconsistent for some nontrivial agent’s behavior – there exist some game solutions which can be reached via iterative bargaining process but are not Nash equilibrium and don’t yield efficient resource allocation.

New editor is designed for simulation professionals that use GPSS. Principles and cloud system building peculiarities on simulation studies automation (SSAS) are defined. Cloud (SSAS) architecture and mathematical presentation based on GPSS World is described. Project result applications are presented.

The problem of tracking is considered for a given speed of rotation of asynchronous motor with a certain flux. It is assumed that only the stator currents are measured. To obtain current unmeasured variables synthesis procedure of state observers on sliding modes for the drive shaft with the sensor and sensorless induction motor isdeveloped.

A formal security hierarchical take-grant model for digital control system is discussed. A simplified security policy for nuclear power plant digital control system is formulated. The realization of formal security model for the proposed security policy is given.