1. Introduction
2. Problem statement
3. Comprehensive-integrated buffer management strategy
3.1. Queuing policy
3.2. Buffer replacement policy
3.3. Congestion control
3.4. Redundant deletion
4. Simulation and analysis
4.1. Network model and simulation environment
Simulation parameters | Simulation values | |
---|---|---|
Map size | 10000 × 8000 m2 | |
Number of nodes | Pedestrian | 80 |
Bicycles | 40 | |
Electric motor car | 6 | |
Vehicles | 18 | |
Office work | 50 | |
Speed | Pedestrian | 0.5–1.5 m/s |
Bicycles | 1.4–4 m/s | |
Electric motor car | 4–10 m/s | |
Vehicles | 2.7–13.9 m/s | |
Office work | 0.5–2 m/s | |
Transmission speed/rang | Blue tooth | 2 Mbps/10 m |
WiFI | 20 Mbps/100 m | |
High-speed | 100 Mbps/1000 m | |
Packet size | 500 kB–1 MB | |
Initial TTL | 300 min | |
Message generation interval | 25 s ,35 s | |
Buffer size | 100M |