Preface
Organization
Contents
I Computer andΒ 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 ofΒ 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
1 Introduction
2 Model Description
3 Model Simplifications
4 Numerical Assessment
5 Conclusion
References
Transient Behaviour of Finite-Source Single-Line Queueing Systems with Jumps of Network Traffic
1 Introduction
2 The Statement of the Problem
3 The Mathematical Method
4 Numerical Calculation
5 Conclusion
References
Probability Density of the Interval Duration Between Events in the Generalized MAP with Its Incomplete Observability
1 Introduction
2 Statement of the Problem
3 Derivation of the Probability Density of the Interval Duration Between Neighboring Events in the Generalized MAP Under Conditions of Partial Observability
4 Conclusion
References
Inventory Control with Returns and Controlled Markov Queueing Systems
1 Introduction
2 Parametric Strategies in the Inventory Control Theory
3 Inventory Control Model with Returns
4 Proof of Optimality of (Rn,rn,Sn,sn) -Strategies
5 Multichannel QS with Switching of Channels
6 Summary
References
On Estimating the Average Response Time of High-Performance Computing Environments
1 Introduction
2 Mathematical Model of the Parallel Structure of a High-Performance Computing Environment
3 On an Approach to Estimating the Average Response Time of a High-Performance Computing Environment
4 Numerical Experiment
5 Discussion
6 Conclusion
References
Exponential Splitting Based Artificial Regeneration in Supercomputer Queueing Model*-4pt
1 Introduction
2 Supercomputer Model
3 Generalized Semi-Markov Process Model of a Supercomputer
4 Artificial Regeneration and Exponential Splitting
5 Numerical Experiment
6 Conclusion
References
Modeling and Analysis of Multi-channel Queuing System Transient Behavior for Piecewise-Constant Rates
1 Introduction
2 Statement of the Problem
3 Transient Behavior of Multi-channel Queuing System with Constant and Piecewise-Constant Rates
4 Numerical Results
5 Conclusion
References
On the Reliability Estimation of the Gaussian Multi-phase Degradation System
1 Introduction
2 Model Description and Performance Measures
2.1 Available Analytic Results
3 Monte Carlo Estimation
4 Simulation Results
4.1 Single Phase
4.2 Multiple Phases
5 Conclusion
References
On Steady State Reliability and Sensitivity Analysis of a k-out-of-n System Under Full Repair Scenario
1 Introduction
2 Notations, Assumptions, and Problem Setting
3 Main Results
3.1 Markovization Method and T.d.s.s.p.'s
3.2 Steady State Probabilities of "426830A Mk<n|GI|1"526930B System
3.3 Rare Failures
4 Conclusion
References
Author Index