Distributed computer and communication networks : control, computation, communications: 25th International Conference, DCCN 2022, Moscow, Russia, September 26-29, 2022, revised selected papers

Intro -- Preface -- Organization -- Contents -- I Computer and Communication Networks -- New Filtering Method to Reduce PAPR and OOBE of UFMC in 5G Communication System -- 1 System Model -- 2 Proposed Filtering Method -- 3 Results and Discussion -- 4 Conclusion -- References -- A Novel Technique for Creating Optical Multi-carrier Generation Using Nested Electro-Absorption Modulators -- 1 Introduction -- 2 Systems Design and Mathematical Modeling -- 2.1 Single EAM Configuration -- 2.2 Nested EAMs Configuration -- 3 Simulation Results and Discussion -- 3.1 Simulation Results of Single EAM Configuration -- 3.2 Simulation Results of Nested EAMs Configuration -- 4 Conclusion -- References -- Discrete Time Markov Chain for Drone's Buffer Data Exchange in an Autonomous Swarm -- 1 Introduction -- 1.1 Drone Swarms Applications -- 1.2 Basic Components of a Drone Swarm -- 2 System Model -- 3 Mathematical Modeling of the System -- 4 Analytical of System Key Indicators -- 4.1 Message Loss Probability -- 4.2 Waiting Time Distribution -- 4.3 Spent Energy per Message Transaction -- 4.4 Distribution of Drone Transmitter Lifetime -- 5 Conclusion -- References -- Construction and Analysis of a Queueing Model with Service Prioritization for 5G Systems with Customizable Network Slice Instances -- 1 Introduction -- 2 System Model -- 3 Mathematical Model -- 4 Numerical Example -- 5 Conclusion -- References -- Spectrum and AI-based Analysis for a Flight Environment and Virtual Obstacles Avoidance Using Potential Field Method for Path Control -- 1 Introduction -- 2 Related Study -- 3 Flight Environment Analysis -- 3.1 Environment Analysis Based on Frequency -- 3.2 Environment Analysis Using CNN -- 4 Avoiding Bad Matching Areas Using Potential Field Method -- 5 Implementation and Comparison -- 6 Conclusion -- References.

Clusters of Exceedances for Evolving Random Graphs -- 1 Introduction -- 2 Related Works -- 2.1 Clustering Attachment for Graph Evolution -- 2.2 Modularity -- 2.3 Extremal Index -- 3 Main Results -- 4 Conclusion -- References -- Estimation of the Tail Index of PageRanks in Random Graphs -- 1 Introduction -- 2 Theory and Its Interpretation for Random Graphs -- 2.1 Tail Index of Random Sums and Maxima -- 2.2 Random Sums and Maxima in Random Graphs -- 3 Required Methods -- 3.1 Estimators of the Tail Index -- 3.2 Directed Louvain's Algorithm -- 3.3 Mann-Whitney U Test -- 4 Practice -- 4.1 A Study of Stationary Simulated Graphs -- 4.2 A Study of Real Graphs -- 5 Conclusion -- References -- Optimization of the Code Division Process Using Multilayer Orthogonal Structures Based on M-Sequences -- 1 Introduction -- 2 Forward and Inverse M-Sequences -- 3 Orthogonal Structures Based on M-Sequences -- 4 Conclusion -- References -- Research and Development of Data Compression Methods Based on Neural Networks -- 1 Introduction -- 2 Development of a Research Stand -- 3 Autoencoder Architecture -- 4 Experimental Results -- 4.1 BCH-Based Codec (31, 5) -- 4.2 BCH-Based Codec (31, 16) -- 4.3 Code Based on BCH (31, 21) -- 5 Conclusion -- References -- Anomaly Electrocardiograms Automatic Detection with Unsupervised Deep Learning Methods -- 1 Introduction -- 2 Unsupervised Deep Learning Methods for Anomaly Detection -- 3 Performance Study of the Autoencoder Model for Anomalies Detection in the Electrocardiograms -- 3.1 Data Description -- 3.2 Deep Autoencoder Model -- 3.3 Analysis of the Results of Computer Experiments -- 4 Conclusion -- 5 Program Code -- References -- Using Neural Networks for Channel Quality Prediction in Wireless 5G Networks -- 1 Introduction -- 2 Related Work -- 3 System Model and Mathematical Problem Statement.

4 An Example of Using the Neural Network Apparatus for Predicting SINR -- 5 Conclusion -- References -- Analysis and Formalization of Requirements of URLLC, mMTC, eMBB Scenarios for the Physical and Data Link Layers of a 5G Mobile Transport Network -- 1 Introduction -- 2 Statement of the Problem -- 3 Analysis and Formalization of Requirements -- 3.1 Bandwidth Scaling -- 3.2 Network Temporal Characteristics: Delays and Signal Synchronization Support -- 3.3 Network Flexibility and Connectivity -- 3.4 Connection Reliability -- 4 Model of Requirements of URLLC, mMTC, eMBB Scenarios for the Physical and Data Link Layers of the Transport Network -- 5 Conlusions -- References -- Traffic Arrival Model for Millimeter Wave 5G NR Systems -- 1 Introduction -- 2 Related Work -- 3 System Model -- 3.1 Deployment -- 3.2 Blockages -- 3.3 Micromobility Effects -- 3.4 Wireless Channel -- 4 Traffic Model -- 4.1 Model Without Outage (CIRCLE Model) -- 4.2 Model with Outages (RING Model) -- 4.3 Models Superposition -- 5 Performance Comparison -- 6 Numerical Results -- 6.1 Arrival Process Analysis -- 6.2 Queuing Time Assessment -- 7 Conclusion -- References -- Model for Analyzing Impact of Path Loss on eMBB Bit Rate Degradation Under Priority URLLC Transmission in 5G Network -- 1 Introduction -- 2 System Model -- 2.1 General Assumptions -- 2.2 Priority URLLC Transmission -- 2.3 Resource Requirement -- 2.4 RR Resource Allocation -- 2.5 WRR Resource Allocation -- 2.6 Resource Allocation for URLLC & -- eMBB -- 3 Path Loss Based Admission Control -- 3.1 Path Loss Model -- 3.2 Conditional Probability of Session Acceptance -- 3.3 Conditional Probability for RR -- 3.4 Conditional Probability for WRR -- 3.5 Conditional Probability for URLLC & -- eMBB -- 4 Queuing Model Analysis -- 4.1 Continuous-Time Markov Chain -- 4.2 Infinitesimal Generator -- 4.3 Performance Metrics.

4.4 Numerical Example -- 5 Conclusion -- References -- Firewall Simulator Development for Performance Evaluation of Ranging a Filtration Rules Set -- 1 Introduction -- 2 Previous Works. Firewall in 5G Networks -- 3 Simulator Development -- 4 Case Study and Performance Analysis -- 5 Analysis of Firewall Performance Indicators -- 6 Conclusion -- References -- Analytical Modeling of Distributed Systems -- Performance Analysis for Tethered HAP Systems: An Analytical Approach -- 1 Introduction -- 2 Model Description -- 3 Analytical Model -- 4 Performance Measures -- 5 Particular Cases -- 6 Conclusions and Future Directions -- References -- Analysis of Power Management in a Tethered High Altitude Platform Using MAP/PH[3]/1 Retrial Queueing Model -- 1 Introduction -- 2 Model Description -- 3 Stochastic Modeling -- 3.1 Steady-State Analysis -- 4 Performance Measures -- 5 Numerical Illustration -- 6 Conclusion and Future Directions -- References -- Investigation of a Finite-Source Retrial Queueing System with Two-Way Communication, Catastrophic Breakdown and Impatient Customers Using Simulation -- 1 Introduction -- 2 System Model -- 3 Simulation Results -- 3.1 First Scenario -- 3.2 Second Scenario -- 4 Conclusion -- References -- Analysis of Retrial Queuing System with Limited Processor Sharing Discipline and Changing Effective Bandwidth -- 1 Introduction -- 2 Model Description -- 3 The Process of System States and Its Analysis -- 4 Performance Measures -- 5 Numerical Example -- 6 Conclusion -- References -- On the Distribution of the Number of Consecutively Lost Customers in the BMAP/PH/1/N System -- 1 Introduction -- 2 The System Description -- 3 Stationary Distribution and the Average Number of Consecutive Lost Customers in the System BMAP/PH/1/N. The Case of Partial Admission Discipline.

4 Stationary Distribution and the Average Number of Consecutive Lost Customers in the System BMAP/PH/1/N. The Case of Complete Rejection and Complete Admission Disciplines -- 5 Conclusion -- References -- Analysis of Tandem Retrial Queue with Common Orbit and MMPP Incoming Flow -- 1 Introduction -- 2 Description of the Mathematical Model and Problem Statement -- 3 The System of Differential Kolmogorov Equations -- 4 The First Order Asymptotic -- 5 Existence of Steady-State Regime -- 6 The Second Order Asymptotic -- 7 Method of Asymptotic Diffusion Analysis -- 8 Approximations Accuracy -- 9 Conclusion -- References -- Average Cost Minimization in a Multi-server Retrial Queueing System with a Controllable Reserve Group of Servers -- 1 Introduction -- 2 The MDP Formalism and Structural Properties -- 3 Heuristic Solution -- 4 Numerical Analysis -- References -- Verification of Stability Condition in Unreliable Two-Class Retrial System with Constant Retrial Rates -- 1 Introduction -- 2 Description of the Model -- 3 Stability Analysis -- 4 Simulation -- 5 Comparison of Stability Regions of Controllable and Non-controllable Systems -- 6 Conclusion -- References -- The Queueing System with Threshold-Based Direct and Inverse General Renovation Mechanism -- 1 Introduction -- 2 System Description -- 3 Stationary Distribution of the Number of Applications in the System over the Embedded Markov Chain -- 4 Probabilistic Characteristics of the System -- 5 Time Characteristics: FCFS Service Discipline and the Direct General Renovation -- 5.1 Serviced Task -- 5.2 Dropped Application -- 5.3 Time Characteristics of an Arbitrary Application -- 6 Time Characteristics: LCFS Service Discipline and the Inverse General Renovation -- 6.1 Serviced Task -- 6.2 Dropped Application -- 7 Conclusion -- References.

Effective Algorithm of Estimation the Performance Measures of Group of Servers with Dependence of Call Repetition on the Type of Call Blocking.