This paper deals with the laws of information in decentralized control systems. In the case of decentralized control of complex systems, often referred to hierarchical systems, theoretically analyze the possibility of using an n-dimensional information theory to deal with such systems. N-dimensional information theory is an interesting tool to deal with these systems. On the basis of information theory the partition laws of information rates are listed. These laws are fundamental requirements for complex systems that must be met and by their quantification one can be able to compare these complex control systems and track how different parts of the system communicate and collaborate with others, etc. In the final section the deterministic partition law of information rates and its possibility of use for dynamical systems are presented.

Advances in display and camera technology enable new applications for three-dimensional (3D) scene communication, such as 3DTV. 3D Multi-view video contains a large amount of inter-view statistical dependencies, since all cameras capture the same scene from different viewpoints. Due to the vast raw bit rate, multi-view video data are expected to consume a large portion of available bandwidth. Therefore, an efficient compression techniques are the key for 3D scene communication. Error concealment techniques have the advantage of improving the received video quality without encoder modifications or transmission rate changes. To improve the quality of reconstructed 3D video, we propose different algorithms to conceal the erroneous and lost blocks of intra and inter coded frames exploiting the temporal, spatial and inter-view correlation between frames and views. There is a hybrid of space domain error concealment (SDEC) and time domain error concealment (TDEC) introduced for intra-frames losses. Three modes are discussed for inter-frames as well, which are time domain error concealment (TDEC), inter-view domain error concealment (IVDEC) and joint time and inter-view domain error concealment (TIVDEC).

This article deals with automated web service composition (AWSC). We present an approach utilizing a combination of artificial intelligence planning methods with knowledge-based approaches to AWSC. For primary composition problem description we used OWL and OWL-S ontologies, which are than in next step translated into a planning problem. This planning problem is represented in PDDL language and may be solved in arbitrary PDDL planner. For the translation process we introduced several original algorithms, which are implemented as components of a prototype system for AWSC.

The paper deals with the design of optimization predictive control algorithms, which are based on the input-output ARX and CARIMA models of the dynamic systems. The paper also deals with the simulation verification of predictive control algorithms on a nonlinear hydraulic system with different settings of various control algorithms parameters, with a system subject to noise, or disturbance. There is mentioned a brief theoretical derivation and the particular formulas for concrete predictive control methods in the paper. The paper includes a flow chart diagram for predictive control methods programming and the control structure, where predictive control algorithms were used in nonlinear hydraulic system control. Nonlinear differential equations, which express hydraulic system’s dynamic are presented, too. The results of generalized predictive control algorithms comparison are expressed by the control action and the hydraulic system’s output in a graphs form.

This paper describes certain area of scripting languages application in visualization process. The focus is on 3D geometric transformations. Algorithm of 3D object rotation is present in more detail and resulting real time implementation in Ruby is demonstrated. Integration into existing VR system for immersive visualization of complex datasets is explained. The object movement from start to destination position is implemented as sequence of sub-movements with particular increments of path. Visualization engine combines script and object to final result and the output is a scene with rotating object in real-time.

This paper deals with dispersion effects resulting from fiber bending performed on microstructured fiber. It is theoretically possible to achieve significant negative chromatic dispersion by fiber bending. Bending of photonic crystal fiber, performed at specific conditions, can result in coupling modes and non-standard dispersion properties. The presented knowledge should be taken into account during the design of photonic crystal fibers immune to bending. For example, the potential tune of the operating wavelength by the reason of bending should be avoided. Minimum values of negative chromatic dispersion and of a minimumdispersion wavelength can be controlled by the value of bending radius. Among others, dispersion diagrams obtained for different bending and for different air-filling fraction are presented.

Performance evaluation and comparison of multi-carrier code division multiple access (MC -CDMA) system model for usually used spreading sequences (Golay, Zadof-Chu, Gold) with chaotic sequences (generated by improved logistic map, by chaotic map with different slopes and by tent function) at the presence of Saleh and Rapp model of high power amplifier (HPA) is investigated. Rayleigh channel model and AWGN channel model is used in this simulation. Nonlinear amplification of HPA introduces degradation of bit error performance and destroys the orthogonality among subcarriers. In order to avoid performance degradation without requiring extremely large backoffs in the transmitter amplifier, it becomes convenient to use nonlinear multi-user detection techniques at the receiver side for all spreading sequences. To illustrate this fact, microstatistic multi-user receiver (MSF-MUD) and conventional minimum mean square error receiver (MMSE-MUD) are considered and mutually compared. The results of analyses are based on computer simulations. The best performance for Rayleigh channel model we can obtain when we used the Golay or Chaotic sequences in combination with MSF-MUD or MMSE-MUD, with using 8 –PSK modulation type.

The aim of the paper is to show comparison between three possible realizations of the PID regulator connection. In this case the regulated parameter is deviation from desired vertical position. The structure of the regulator is same like structure of autopilot used in aircraft for pitch angle stabilization. Three different structures of algorithms are described and these structures differ by proportional, integration and derivate gain connection. The goal is to find the most suitable structure for pendulum stabilization. The criteria for the best system selection are system’s stability, wide range of stabilized angle, uncomplicated final structure and no overshooting of input’s limitations.

This paper presents results of modelling and analysis of Network Control Systems (NCS) using the reconfiguration strategies in case of individual networks faults. In general the NCS as all systems follows its mission which should be accomplished with guarantee. The system mission can be disturbed or interrupted by failures which occur with some probability. A primary requirement in order to benefit from network reconfigurations is to prepare some reconfiguration mechanisms which are executed just after the network failure, when the communication of some of the components has to be retransmitted through other non-failed networks. The implementation of a suitable reconfiguration strategy allows significant improvement of the dependability attributes and parameters.

High peak-to-average power ratio (PAPR) is one of the major drawbacks in the orthogonal frequency division multiple access (OFDMA) systems. In this paper, we present a zadoff-chu matrix transform (ZCMT) precoding based localized OFDMA uplink system with improved PAPR. The proposed system is based on precoding the constellation symbols with ZCMT precoder. Extensive computer simulations have been performed to analyze the PAPR of the proposed system with the root-raised-cosine (RRC) pulse shaping. Simulation results show that, the proposed system has better PAPR gain than the hadamard-transform (WHT) precoded Localized-OFDMA uplink systems and the conventional Localized-OFDMA uplink systems.