Intro
Contents
Wireless Communications
Analysis and Simulation of Doppler Shift of LEO Satellite
1 Introduction
2 Analysis of the Effect of Doppler Shift on PSK Demodulation
3 Influence Factors of Doppler Shift
3.1 Analysis of Doppler Shifts
3.2 Simulation Calculation of Doppler Frequency Shift
4 Simulation Analysis of Doppler Shifts
4.1 Research on the Influence of Frequency on Doppler Frequency Shift
4.2 Research on the Influence of Orbital Altitude on Doppler Frequency Shift
5 Conclusion
References

Application Research of NB-IoT Technology in Quality Monitoring of Cold Chain Transportation
1 Introduction
2 Related Study
3 System Framework
4 Concrete Implementation
4.1 Software Module
4.2 Mobile App
5 Conclusion
References
Advanced Reliability Analysis of Teaching Student Evaluation Data Based on Random Forest Method
1 Introduction
2 Cluster Analysis of the Student Evaluation Data
2.1 Reliability Analysis of Student Evaluation Participation Rate and Evaluation Scores
2.2 Contribution to Students' Total Score Using the Random Forest Classification

3 Conclusion
References
Real L(p,q)-Edge Span of Cartesian Product of Path and Star
1 Introduction
2 L(p,q)-Edge Span of Pn Sm
3 Conclusion
References
Distributed Critical Node Detection Algorithm Based on Neighbor Partition Table
1 Introduction
2 Related Work
3 Distributed Critical Node Detection Algorithm
3.1 Neighbor Partition Table Model
3.2 Algorithmic Design Ideas
3.3 Algorithm Implementation Steps
4 Simulation and Result Analysis
4.1 Simulation Environment Design
4.2 Analysis of Simulation Result
5 Conclusion
References

Dynamics Analysis of Epidemic Models with Information Intervention
1 Introduction
2 Model Building and Equilibrium
3 Main Results
4 Proof of Main Results
4.1 Proof of Theorem 3.1
4.2 Proof of Theorem 3.2
4.3 Proof of Theorem 3.3
5 Numerical Simulation
6 Conclusions
References
Identification of Malicious Calls with Temporal Filtering
1 Introduction
2 Our Approach
2.1 Data Collection
2.2 Feature Statistics
2.3 Build Temporal Filtering
2.4 Model Construction
2.5 Model Train
2.6 ROC Definition
3 Experiment
4 Conclusion
References

Research on Dynamic Revenue-Based Edge Caching Strategy
1 Introduction
2 System Model
2.1 Edge Caching System Model
2.2 Calculation of Delivery Latency
2.3 Optimization Issues
3 Caching Strategy
3.1 Selection of Cache Contents
3.2 Predict Number of Requests
3.3 Cache Revenue
4 Simulation Analysis
5 Conclusion
References
Swin-Transformer-Enabled YOLOv5 for Detection on Fetal Limb Deformity
1 Introduction
2 Related Research
2.1 Object Detection
2.2 Backbone Network
2.3 Medical Image Detection
3 Methodology
3.1 The Architecture of YOLOv5