| Technology |
Service |
Data Rate |
Coverage |
Spectrum |
Cost |
| Cellular (2G and 4G) [6] [7] |
Data |
Low-Moderate |
Large |
1850 - 1990 MHz |
Operating cost |
| LTE(4G) |
Data |
High |
Large |
2 GHz - 8 GHz |
Operating cost |
| Wi-fi |
Data |
High |
Small |
2.4 GHz |
Operating cost |
| Bluetooth [8] |
Data |
High |
Very Small |
2.4 GHz |
Low |
| RF |
Audio, Data |
Low |
Small |
300 - 400 MHz |
Low |
| LoRa |
Data |
Very Low |
Large range |
915 MHz |
Low |
| UHF/VHF |
Data |
Very Low |
Large range |
UHF band |
Low |
| Radio Teletype |
Voice |
Very Low |
Large range |
UHF band |
Low |