What Is The Difference Between GSM And CDMA Mobiles?


3 Answers

Philip Simpson Profile
Philip Simpson answered
GSM and CDMA are two different modulation standards. GSM is used primerily in Europe and CDMA in the US. GSM uses a system called TDMA to differentiate between different mobile calls, TDMA means Time Division Multiple Access. CDMA is a much more complex system which uses digital codes to differentiate between the different mobile calls. CDMA stands for Code Divison Multiple Access. Mobiles designed for CDMA and mobiles designed for GSM look very similar, even the construction looks the same, infact most modern mobiles can operate using either system so that they can be used around the world.
Rajesh Shri Profile
Rajesh Shri answered
The world of wireless communication has opened up new vistas of technology and a number of dedicated attempts to enhance the existent systems. Each system is unique in its approach and the competition simply lies in the accessibility and facilities enabled. The sphere of mobile communication is synonymous with the GSM and CDMA communication systems, worldwide. The services are not contained or restricted and are accessible anywhere.

To understand the main difference between GSM and CDMA communication systems, it is essential to understand that while the former is a universal concept, the latter has emerged out of a proprietary effort. GSM or the Global System for Mobile communication is an international organization established in 1987, to develop and enhance wireless communication, worldwide. CDMA or Code Division Multiple Access is relatively new in the industry and a design of Qualcomm, a company based in the United States of America.

The CDMA or Code Division Multiple Access was initiated as an alternative to GSM or the Global System for Mobile communication. The difference lies in the speed made available for data transfer, which is traditionally considered faster with CDMA. Nevertheless, just as diverse as the scope of wireless mobile communication is, so is the scope for both these industry giants to outdo one another in the global market.
Vikas Tanwar Profile
Vikas Tanwar answered

The difference between GSM and CDMA mobile in cell administration
there are two fundamental contending system innovations: Global
System for Mobile Communications ( GSM) and Code Division Multiple
Access ( CDMA). Cell transporters including Sprint , AT&T,
Verizon and T-Mobile utilize one or the other.

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