What is difference between CDMA & GSM technology?

Question

What is difference between CDMA & GSM billing mechanism & revenue assurance methodology for both

Answer 1

I will surely explain them in details-

1) GSM stands for Global System for Mobile communication. It is widely used over the world. GSM system operates on radio frequencies of 800MHz,1800Mhz,1200MHz. Suppose a user having GSM mobile is calling a phone then a seperate indivisual radio link is crated between the mobile and the tower(transponder). GSM is very useful but it is expensive

2) CDMA - CDMA stands for Code Division Multiple Access. In GSM if 2 mobile phones are connected to same tower, they have differant frequencies. But for CDMA all the mobile phones in each cell have same frequencies. Suppode 2 CDMA phones are calling from a same area, their frequency is same and hence their radio link is not indivisual . Alll the radio links of CDMA reach the transponder at a same time. CDMA offersa huge bandwidh. But CDMA haves some limitations like if there are too many callers in the same area, quality decreases. But CDMA is inexpensive and CDMA phones need very low power. Refer links bellow for more information-
Also there are many other technlologies like TDMA, FDMA. But GSM and CDMA used most.

Answer 2

CDMA: stands for Code Division Multiple Access. Both data and voice are separated from signals using codes and then transmited using a wide frequency range. Because of this, there are more space left for data transfer (this was one of the reasons why CDMA is the prefered technology for the 3G generation, which is broadband access and the use of big multimedia messages). 14% of the worldwide market goes to CDMA. For the 3G generation CDMA uses 1x EV-DO and EV-DV. It has a lot of users in Asia, specially in South Korea.

GSM: stands for Global System Mobile. Even though it is sold as "the latest technology" in several countries, this technology is older than CDMA (and also TDMA). But keep in mind that this doesn't mean that GSM is inferior or worse than CDMA. Roaming readiness and fraud prevention are two major advantages from this technology. GSM is the most used cell phone technology in the world, with 73% of the worldwide market. It has a very strong presence in Europe.

Answer 3

GSM stands for Global System for Mobile Communications and CDMA stands for Code Division Multiple Access. These are the two competing technologies in the field of mobile communication.CDMA has proven to be faster in speed than GSM with a downstream rate of 2mbps whereas GSM provides 360kbps. But the reason GSM still survives is that GSM offers international roaming unlike CDMA.GSM providers have contracts with other GSM carriers for providing roaming facility thereby providing greater coverage.
The future of these two technologies is still questionable and undecided.

Answer 4

What Does Cdma Stand For

Answer 5

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gsm - Golf Sucks Man CDMA - Coffee Dermatalogocal Martian Ape

Answer 6

cdma is code division multiple access. it has code modulation technology. its sim cards can be used only by some phones. its advantage is voice clarity gsm is global system for mobiles. it is the most used technology. it can be used in wide range of phones which support gsm. it can be used world wide anywhere.

Answer 7

Both CDMA & GSM are not the same mechanism & methodology it must be learn and answer in apart and the answer might be longer than you expected, it's just not enough in this page.

Answer 8

The differences are on the radio technology used by the two systems. There's no worthy difference on the accounting back-ends between the two.

Attempting to explain the technology would take a couple of rather thick books.

Answer 9

i know that cdma is newer but it's too hard to explain the difference (for me that is lol) Also each has their better qualities.

Answer 10

advanced version of cdma