Gsm pronounced geeessem is the most popular cell phone standard, and is used internationally, so youve probably heard about it in the context of gsm phones and gsm networks, especially when compared to cdma. Nov 15, 2019 cdma networks allow for a greater number of users, meaning their capacity for communication is greater than that of gsm networks. History of cellular mobile radio and gsmglobal systems for mobile l early 1980s there was analog technologies. In this context the italian speaker doesnt suddenly learn c. Difference between gsm and cdma the worlds renowned mobile phone network technologies are gsm global system for mobile communication and cdma code division multiple access. Nov 24, 2019 its easy to swap phones on a gsm network because gsm phones use removable sim cards to store information about the user on the gsm network, while cdma phones do not. Telstra currently provides umts service on this network, and also on the 2100 mhz umts network, through a coownership of the owning and administrating company 3gis. Gsm vs cdma whats the difference between the two technologies. It uses multiplexing techniques including code division multiple access cdma as well as timedivision access to maximize both individual users. In 2001, the first umts w cdma network was launched, a 3g technology that is not part of gsm. Gsm is in use over 80% of the worlds mobile networks in. It initially started as a circuit switching network, but later packet switching was implemented. By standard the gsm network is divided into four 4 subsystems 1. Which refers to universal terrestrial radio access network.
Cellular network organization use multiple lowpower transmitters 100 w or less. Cdma, or code division multiple access, was a standard. Cdma are the most successful cell phone technologies present in world, cdma handsets are chip based. Cdma and gsm are both multiple access technologies. The reason for this is to limit the designers as little as possible but still to make it possible for the operators to buy equipment from different suppliers. It is effective and needs the able tool for quickly and fast programming or reprogramming cdma devices to any unlocking work. These two technologies differ in the way calls and data travel over the mobile phone networks take place. In 2002, the first multimedia messaging service mms was introduced and the first gsm network. These areas include cells, location areas las, mscvlr service areas, and public land mobile network plmn areas. Serial number, assigned to mobile based on the phone number. The gsm network is divided into three major systems. Moreover, cdma is the infrastructure on which all 3g networks are.
In 2008, australian telco telstra replaced its existing cdma network with a national umtsbased 3g network, branded as nextg, operating in the 850 mhz band. Roaming is the ability to use your gsm phone number in another gsm network. Cdma networks have a security protocol called cave that requires a 64bit authentication key, called akey and the unique esn electronic serial number, assigned to mobile based on the phone number. Whereas only mobile phones from a set of whitelisted companies can be used with a cdma network. No new applications for cdma service are accepted after 7 november 2018. The purpose of oss is to offer the customer costeffective support for centralized, regional, and local operational and maintenance activities that are required for a gsm network. The gsm specifications define the functions and interface requirements in detail but do not address the hardware. Its easy to swap phones on a gsm network because gsm phones use removable sim cards to store information about the user on the gsm network, while cdma phones do not. These two technologies differ the way in which the calls and data transfer takes place over a network and mobile. The key difference between the two is that gsm is a standard and cdma is a technology, but gsm, over the years has come close to attaining technological status. The technology is commonly used in ultrahighfrequency uhf cellular telephone systems, bands ranging between the 800mhz and 1. Architecture of the gsm system several providers setup mobile networks following the gsm standard within each country. The cdma network operates in the frequency spectrum of cdma 850 mhz and 1900 mhz while the gsm network operates in the frequency spectrum of gsm 850 mhz and 1900 mhz.
Technically gsm global system for mobile communications, originally from groupe special mobile is a specification of an entire wireless network infrastructure, while cdma relates. The agent locates at the place where the mobile node opens its account. Gsm and cdma are the most successful cell phone technologies present in world, cdma. Introduction to gsm, the global system for mobile communication. The experiment was based on a rural area in lagos state, nigeria called agbado.
Evolutionary analysis of gsm, umts and lte mobile network. The basic difference between gsm and cdma is that the gsm is a sim specific i. An important function of oss is to provide a network overview and support the. If it was much more better, there would be a world wide competition between gsm and cdma. Sasktel today announced that it will be turning down its code division multiple access cdma network july 5, 2017, after which cdma devices will no longer function. Gsm digitizes and compresses data, then sends it down through a channel with two other streams of user data, each in its own timeslot. Even canadas bell and telus started an hsdpa network, making them able to provide gsm phone selection. The gsm standard was developed for setting protocols for second generation 2g digital cellular networks. The worlds renowned mobile phone network technologies are gsm global system for mobile. Sasktel will be transitioning existing cdma customers to its 4g and 4g lte network which offers faster speeds, more capable devices, broader coverage, new features and more. Code division multiple access cdma the concept of signal spreading and its uses in communications.
Gsm uses digital communication system or dcs 1800 and is the worlds main 2g. The cdma network operates in the frequency spectrum of 850mhz and 1900mhz. Every rnc is connected to sgsn through the iups interface, and to an msc. Article pdf available may 2015 with 1,146 reads how we measure reads. Tdma time division multiple access and cdma code division multiple access. Communication and cdma code division multiple access. Global system for mobile communication technology mobile device investigations program technical operations division. From the network aspect, cdma used directspreading spectrum dscdma and gsm network is divided into three main systems. Gsm uses a variation of time division multiple access tdma and is the most widely used of the three digital wireless telephony technologies tdma, gsm, and cdma. The gsm network operates in the frequency spectrum of 850mhz and 1900mhz.
Jul 28, 2014 gsm uses a variation of time division multiple access tdma and is the most widely used of the three digital wireless telephony technologies tdma, gsm, and cdma. Gsm is a very straightforward standard, whereas cdma is somewhat complicated. Professor, quantum school of technology, mandawar, roorkee dehradun highway, roorkee, uk 2 research scholar, quantum school of technology, mandawar, roorkee dehradun highway, roorkee, uk. In second and third generation wireless communication a. Gsm technology was developed by europe in1982 but its massive deployment started in 1992. Backbone network the network evolution from gsm and radio access from utra the third generation mobile network evolved from the second generation systems such as gsm and gprs gsm. The main distinction between gsm and cdma is that in gsm, the customer information is put on a sim card which can be moved to a new mobile phone. What we now call cdma uses an entirely different technology, code division multiple access that gsm devices do not use in any way, shape or form. Verizon will turn off its cdma network and tmobile will turn off its 2g gsm network by the end of 2020. Gsm global system for mobile communication ha home agent hlr home location register. Sep 27, 2019 the cellular mobile service is being used everywhere in the world today.
Mar 03, 2017 cdma and gsm are two different technologies. After all, gsm was a network standard not merely a product standard. It provides the interface between the radio network and the packet data network. Both the technologies can be used with 3g standard phones, but 3g gsm speeds can be faster than 3g cdma speeds.
L over 400 gsm network operators l over 550 million people were subscribers to gsm. Gsm or global system for mobile communications is the most popular wireless cellular communication technique, used for public communication. Transmit voice data via ip over the cdma2000 1x evdo network. Pdf the ability to communicate with the people on move has expanded a lot by using cell. Cdma network architecture consists of following elements mobile station ms. The core network of umts is inherited from gsm gprs network. In gsm, the core network consists of two service domains cs circuit. In 2000, gsm become very popular technology worldwide. Gsm digitizes and compresses data, then sends it down a channel with two other streams of user data, each in its own time slot. The network uses both of these to create a random number that is then used to create a mask for the long code. The users of gsm use subscriber identity module sim cards for the connection with the service provider. Evolutionary analysis of gsm, umts and lte mobile network architectures paschal a. Theyre ways for people to cram multiple phone calls or internet connections into one radio channel. Gsm and cdma are competing wireless technologies with gsm enjoying about an 82% market share globally.
Luckily, us mobile has excellent cellular coverage using the best gsm and cdma networks in the us. Cdma2000 1xevdo evolutiondata optimized, often abbreviated as evdo or ev, is a telecommunications standard for the wireless transmission of data through radio signals, typically for broadband internet access. Abstract as the networks improves, demands for rapid data transfer rates for. Gsm and cdma are two dominant technologies in the world of mobile communication. Mobile network technologies gsmgprsumtslte youtube. Gsm is in use over 80% of the worlds mobile networks in over 210 countries as compared to cdma.
Cdma workshop is the professional powerful software service, built to task with any cdma 800, 1900, ixevdo, gsm, wcdma, lte etc smartphones, tablets, fixed terminals, data cards and more. Gsm standard still evolving and improved with new features and services. A network configuration based on the gateway solution 48. The ms is the mobile subscriber equipment, which can originate and receive calls and communicate with the bts. Wcdma wide band code division multiple access umts before we talk about 4g or gsm. Rates for global evolution edge cdma, are 3g gsm based standards. Wcdma wideband cdma win wireless intelligent network wlan wireless lan wml wap markup language wsn wlan serving node box a, terms and abbreviations figure 2. These two technologies differ in the way calls and data travel over the mobile phone networks. Cdma in general uses digital encoding and spreadspectrum techniques to let. Irving2,b 1 department of computer science, federal university lafia, nasarawa state, nigeria 2 department of computing, engineering and technology, university of sunderland, sunderland, sr6 0dd, united kingdom. About us sasktel turning down cdma network july 2017. What matters is the coverage from the cdma and gsm networks. The network uses both of these to create a random number that is then used to create a mask for the long code used to encrypt and spread each phone call.
Mobile and wireless communication complete lecture notes. Cdma is almost exclusively used in the united states and some parts of canada and japan. Gsm provides basic to advanced voice and data services including roaming service. Instead, cdma networks use information on the carriers server to verify the same type of data that gsm phones have stored in their sim cards. Sep 27, 2016 the basic difference between gsm and cdma is that the gsm is a sim specific i. This paper discusses the technical differences between the worlds two biggest wireless networks gsm and cdma. Code division multiple access cdma is a sort of multiplexing that facilitates various signals to occupy a single transmission channel. What information is being transmitted to the carrier when making a call on a gsm network. Gsm supports transmitting data and voice both at once, but cdma have not this feature. Difference between gsm and cdma with comparison chart.
About us sasktel turning down cdma network july 2017 sasktel. Actually, the access network for the 3g network is the utran. From the network aspect, cdma used directspreading spectrum ds cdma and gsm network is divided into three main systems. Comparative analysis of gsm network and is95 cdma network using signal strength. The cellular mobile service is being used everywhere in the world today. Whether you use a cdma or gsm network, it does not matter. It is a third generation network developed by ntt docomo and from 2g network cdma. Gsm cell structure l the power level of a transmitter within a. This question can be rephrased as if an italian speaker is in china can he speak chinese.
Difference between gsm and cdma in hindi mobile phone. Pure gsm phones wont work on a cdma network, and vice versa. This document lists most of the gsm and cdma wireless network operators in the world over 900 and was accurate at the time of publication. On the other hand, in cdma the network identifies a handset by the information stored in the internal memory and hence, its handset specific. This article is all about the difference between gsm and cdma technology.
The cell is the area given radio coverage by one base transceiver station. Network design and planning gsmcdma free download as powerpoint presentation. Gsm utilizes the code division multiple access cdma concept, rather than. The gsm network identifies each cell via the cell global identity cgi number. Proxicasts lancell 3g ethernet vpn cellular router must be deployed in a location that has cellular data service available. Nov 12, 2019 gsm pronounced geeessem is the most popular cell phone standard, and is used internationally, so youve probably heard about it in the context of gsm phones and gsm networks, especially when compared to cdma. Technically gsm global system for mobile communications, originally from groupe special mobile is a specification of an entire wireless network infrastructure, while cdma relates only to the air interface the radio portion of. In 2001, the first umts wcdma network was launched, a 3g technology that is not part of gsm. In 2002, the first multimedia messaging service mms was introduced and the first gsm network in the 800 mhz frequency band became operational. You must know wcdma which stands for wide band code division multiple access. Gsm and cdma spectrum frequencies the cdma network operates in the frequency spectrum of cdma 850 mhz and 1900 mhz while the gsm network operates in the frequency spectrum of gsm 850 mhz and 1900 mhz. It focuses on the quantitative comparison between the gsm. Pdf comparative analysis of gsm network and is95 cdma.