Spectrum 2g, 3g, 4g
Spectrum:
Not limited to set of values it can vary.
G:
Generation.
Difference between 2g, 3g and 4g:
Circuit switching:
Narrow band:
Signals over a small range of frequencies.
Broadband:
Fastest speed available over telephone line.
Ultra broadband:
Fast, easy connections everything all over the world.
Not limited to set of values it can vary.
G:
Generation.
Difference between 2g, 3g and 4g:
| FEATURES | 2G. | 3G. | 4G. |
|---|---|---|---|
| Developed in the year | 1993. | 2001. | 2009. |
| Switching | Circuit. | Packet. | Packet. |
| Speed | 14.4 kbps. | 3.1 mbps. | 100 mbps. |
| Internet service | Narrow band. | Broadband. | Ultra band. |
| Bandwidth | 25 mhz. | 25 mhz. | 100 mhz. |
| Frequency | 200 khz. | 5 mhz. | 15 mhz. |
| Advantage | SMS. MMS. Internet access. Sim introduction. | Roaming. High security. | Global mobility. High speed. MIMO technology. |
| Disadvantage | Slow data rate. low network range. | High power consumption. Low network range. High spectrum license. | Hard to implement. Complicated hardware. |
Circuit switching:
Packet switching:
SMS:
Short message service.
MMS:
Multimedia message service.
SIM:
Subscriber identification module.
Global mobility:
Refers to managing both global and domestic.
Narrow band:
Signals over a small range of frequencies.
Broadband:
Fastest speed available over telephone line.
Ultra broadband:
Fast, easy connections everything all over the world.