Global System for Mobile Communications(GSM) and Code Division Multiple Access(CDMA)
GSM -Global System for Mobile Communications
- Coverage - GSM has a wide coverage
- Identification - uses of SIM (Subscriber Identity Module).
- Roaming - supports roaming with in the country as well international roaming.
- Battery Power - more usage because data is always transmitted
- Data Speed - uses EDGE (Enhanced Data Rates for GSM Evolution) – Approximately 300 kbps.
CDMA - Code Division Multiple Access
- Coverage - Comparatively less coverage as there are many providers for GSM Cards
- Identification - part of phone that is one major disadvantage.
- Roaming - supports romaing but we need to have a separate card for International roaming.
- Battery Power - Less usage.
- Data Speed - uses EDO (Evolution Data Optimized) – up to 2 megabits per second.
[Tags]GSM,CDMA[/Tags]
January 26, 2006 |Posted By Ravi Shankar | Filed Under Technical
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