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CDMA vs GSM in India
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Comments Posted on Nov 23, 2009 Posted by Kiran
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When we talk about cellular services, there are two main cellular data transmission technologies out there: Code Division Multiple Access (CDMA) and Global System for Mobile Communications (GSM). GSM is the most popular technology worldwide. Although CDMA has a lower number of users compared to GSM, it is seriously popular in countries like China and India.
Though both the technologies do a similar job, there is major difference between them in terms of how they work. In CDMA technology both data and voice are separated using codes and then transmitted using a wide frequency range, leaving more space for data transfer. Because of this behaviour, CDMA is the preferred technology for 3G services. GSM is not a new technology. It was invented before CDMA but it has a reputation as the latest mobile technology. It’s often claimed that it’s a better technology because it uses a SIM chip, allowing users to switch handsets and operators more easily. Other advantages of GSM over CDMA are