Difference between GSM and CDMA

Hello, readers welcome to the new post. We will discuss Difference between GSM and CDMA. Mobile phones are currently used all over the world and increasing with time. Different systems are based on cellular communication GSM and CDMA are two commonly used. These two technologies are used to convert data from mobile to radio waves.

The basic difference between these two systems is that a SIM card is used in GSM for mobile connection to the network and CDMA does not need a SIM. Here we will also use more parameters to find the differences. So let’s get started with the Difference between GSM and CDMA.

Difference between GSM and CDMA

• The GSM stands for global system for mobile communication which is a digital mobile communication protocol that is used for the transmission of data through a network.

• It is also called 2nd generation standard for cellular communication and uses a wedge spectrum for operation
• There is the use of TDMA and FDMA to separate the users and cells as well as transmitted signals.
• GSM also helps to introduce different services like GPRS, and UMTS EDGE.
• It uses three frequencies for an operation: 900 megahertz, eighteen hundred megahertz, and 1900 megahertz
• The frequency value 900 MHZ was used by the GSM and 1800 MHZ was used to offer the increment in the users. Wule 1900 band is used in the USA
• Its main benefit is that users can get the benefit of SMS services through which users can communicate through text messages

Advantage of GSM

• High-quality of signal and data transmission is used in GSM
• It enhances the efficiency of the spectrum
• It also offers less expensive mobiles and BS

What is CDMA

• The full form of CDMA is code division multiple access that is used for radio-based communication system
• It comes into existence for 2g and 3g for wireless communication protocol
• It is configured on the spread spectrum technology and uses a high value of bandwidth.
• The use of a spread spectrum helps users to make communicate through the use of the complete frequency spectrum at any instant
• It has secure data transmission due to the spread spectrum features
• It is also employed in UGH having high-frequency ranges of about eight hundred to 1900 MHz

CDMA Advantages

• It is used all over the world since it is compatible to other cellular network
• It helps to make flexible use of features
• It does not have any limit for customers
• It has a certain value in the frequency spectrum

GSM vs CDMA

• GSM stands for global system for mobile communication and CDMA code division multiple access
• GSM uses FDMA and TDMA technologies
• GSM is used all over the world and CDMA for some countries
• GSM has 42 MBps data rates and CDMA has 3.6 MBPS
• GSM can send data and voice at the same time while CDMA did not have these features
• Data stored in SIM card for GSM and in the case of CDMA data stored in phone
• There is no built encryption exists in GSM but CDMA has
• GSM is less secure while CDMA is secure
• GSM supported the worldwide raming and CDMA has limited
• GSM needs a sim and CDMA is not needed
• If the sim not working on phones we change the phone for GSM while for CDMA we have to change the phone if CDMA does not work

Which is better: CDMA or GSM?

• Through GSM data and audio-called calls can be done at the same time but not for CDMA. So it makes a useful GSM.
• GSM and CDMA used for 2G and 3G services
• With the advancement of the 4th generation, users use the LTE that is standard for 4g networks.

GSM

• Its full form is a global system for mobile communication.
• FDMA and TDMA technologies are used for this system
• It is used at a wider level.
• The data speed rate is 42Mbps in HSPA.
• GSM supported the transmission of data and voice at the same time.
• Data of users stored in SIM card.
• GSM does not come with built-in encryption.
• GSM provides less secure communication.
• It has word level roamin and a GSM signal can detected as they are based on narrow bandwidth.
• There is a SIM card used for operating GSM devices.
• When the SIM on the phone not working we can use another SIM as compared to buying new phone.
• GSM technology works on a wedge spectrum called carrier.
• GSM works on 2*2 MIMO.

CDMA

• Its full form is code division multiple access
• It’s working based on CDMA technology.
• CDMA is used in less number of countries and carriers.
• Its data speed is 3.6Mbps
• CDMA does not support data and voice transmission.
• It stores data on the phone.
• It has built-in encryption
• It has limited roaming for certain countries.
• It secure communication protocol
• There is no need for a SIM card
• CDMA is based on spectrum technology.
• LTE supports the  8*8, and 4*4 MIMO and and also compatible with cooperative MIMO and multi-user MIMO.

That is all about the Difference between GSM and CDMA all details has explained if you have any queries ask in the comments. Thanks for reading