Research Article
Performance Evaluation of the Transmission Quality of the Internet of Things in Farmland Environmental Monitoring Based on ns-3
Table 1
Comparison of several common transport protocol parameters.
| | Comparison type | Zigbee | WiFi | LoRaWAN | NB-IOT |
| | Network deployment | Node and gateway | Node and router | Node and gateway | Node and operators’ base station | | Transmission distance | Short distance (about 100 m) | Short distance (about 100 m) | Long distance (more than 10 km) | Long distance (more than 10 km) | | Node capacity | 60000 in theory
Typically 300–500 | About 50 | 60000 in theory
Typically 5000 | About 200000 | | Working frequency band | 2.4 GHz | 2.4 GHz and 5 GHz | Sub-GHz (433, 868, and 915 MHz) | Operators’ band | | Transmission speed | 20–250 kbps | 2.4 GHz 1 M11 M
5 GHz 1 M–500 M | 0.3–50 kbps | 16–250 kbps
Typically <100 kbps |
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