What is the differences between GSM and CDMA technology? Which is better and why?

Answer 1

GSM is used pretty much throughout the world except the USA (although there are GSM networks in the US) GSM is regarded as technically superior to CDMA and because of the much bigger market for handsets, GSM handset prices are much cheaper.

Cell phone penetration in developed nations is > 90%. In the USA it is ca 50% (although the technology is not to blame for this, it is because in the USA, you pay to receive mobile calls where in the rest of the world you pay extra to call a cell phone. In the US, this discourages people from having cell phones)

Answer 2

The basic difference in GSM and CDMA technology is how they send communication signals to the base tower from a cell phone.
GSM is well developed and widely accepted for mobile. Where CDMA is newer technology and users are reluctant to accept it. GSM is mainly working on 850, 900, 1800 and 1900 MHz. and good for voice and low data carried out on this compared to CDMA. CDMA is more advantageous for data with high speed.
GSM is consuming more bandwidth and energy for same application to CDMA.
GSM are compensating data speed with GPRS and EDGE and 3G technology. Still this technology is expensive and waiting for good public acceptance.
Above are main points and that can be elaborated.

Answer 3

GSM is also known as Global System for Mobile Communications, or simply Global System for Mobile. A technology started development in 1985 by a French company formerly known as Groupe Spécial Mobile. It's main competetor is CDMA, currently in use by Bell Mobility, Telus Mobility and Mobility Canada carriers.

Currently, only two main carriers in Canada are operating GSM networks. Microcell (Fido, Cityfone) and Rogers Wireless. Fido was the first carrier to start utilising this technology, followed by Rogers Wireless mainstream around 2001. Several companies in the United States have adopted GSM and it's spreading fast among AT&T Wireless, T-Mobile.

GSM operates on 4 different frequencies worldwide. However, only two are which are used in Canada, which are GSM-850 and GSM-1900.GSM-850 and GSM-1900 which operate at 1.9Ghz.

GSM calls are either based on data or voice. Voice calls use audio codecs called half-rate, full-rate and enhanced full-rate. Data calls can turn the cell phone into a modem operating at 9600 bps. An extended GSM feature is high speed circuit switched data, allowing the phone to transmit upto around 40 kbps.

GPRS
GPRS or General Packet Radio Service is an extended service of GSM Network adding the ability to surf the Internet on your phone at slightly higher speeds. GPRS Internet surfing is comparable to dial-up Internet service in it's speed, operating at around 4 to 5 Kilobytes per second.

Surfing the net on your mobile isn't exactly cheap compared to residential Internet services. It is generally billed by how much data you transfer and it can get costly!

We would not recommend the consumer use GPRS technology in place of a desktop computer with an Internet connection. It's just too expensive.

Answer 4

well se i m a electronic enng and knowledge in it GSM means Global Systems for mobile communications and CDMA means Code Division Multiple Acesses. well CDMA was the best technologly of its time without any error but as technology advances the invention of gsM WAS there so now GSM is the best ok and it is use in all the latest phones.

Answer 5

cdma is faster in processing voice over network mediums. GSM which is also good due to its popularity and media add ons. If u are a international traveler .. .GSM is the way to go

Answer 6

in eauropean states they use GSM, which I find works better, there is never a point that you get cut off in midle of a conversation, but here in the states CDMA is more common

Answer 7

cdma mob works withs d coded technoly. even its band width required is also les as compared to other technology.