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In this paper, a model of a wireless receiver based on macro diversity (MD) technique is considered. The system consists of a macro diversity SC receiver (MD SC) that combines the output signals from two micro diversity (mD SC) receivers with L input branches. This approach is used to simultaneously reduce the effects of Weibull short-term fading, Gamma long-term fading, and co-channel interference (CCI) on system performance. In this paper, closed-form expressions for the outage probability (Pout) of the system for the ratio of the signal-to-interference (SIR) at the outputs of the mD SC and the MD SC receiver, were derived. The system Pout of the ratio the signal-to-interference at the output of the MD SC receiver can further be used to calculate the average fading duration (AFD) of the proposed system configuration. Further, we explore the potential of using Large Language Model (LLM)-based trending ChatGPT service to estimate the degree of the Quality of Service (QoS), considering Pout as one of the input variables. Finally, we have compared the proposed method to traditional Weka-based machine learning algorithm in predicting the QoS. [ABSTRACT FROM AUTHOR]

In this paper a stability of stochastic heroin model with two distributed delays is studied. Precisely, the deterministic model for dynamics of heroin users is extended by random perturbation that briefly describe how a environmental fluctuations lead an individual to become a heroin user. By using a suitable Lyapunov function stability conditions for heroin use free equilibrium are obtained. Furthermore, asymptotic behavior around the heroin spread equilibrium of the deterministic model is investigated by using appropriate Lyapunov functional. Theoretical studies, based on real data, are applied on modeling of number of heroin users in the USA from 01.01.2014. [ABSTRACT FROM AUTHOR]

This paper presents synthesis of kinematic model of NAO humanoid robot of Aldebaran Robotics. NAO humanoid robot has complex kinematic structure with 25 active degrees of freedom (DOF). Humanoid system is formed through 5 mutually depended kinematic chains. After that we applied standard aspects of kinematic chains synthesis and Denavit-Hartenberg parameters of each of 5 chains of robotic structure were introduced. Also, mutual relationships between chains were described, as well as their physical and structural dependence. Generated kinematic model will be the starting point for further dynamical modeling of NAO humanoid robot and motion synthesis on actual platform. [ABSTRACT FROM AUTHOR]