The mobile phone scene is a fast paced one and it seems that there is always a desire to make things better, faster, and more powerful. Compare every iphone model ever made with iphone 11. The future with the advent of 4g and the adoption of lte and lteadvanced as the standard by the majority of network carriers worldwide, the debate of gsm vs cdma matters less every day. Impact of the gsm and cdma mobile phone networks on. Gsm and cdma the cellular mobile service is being used everywhere in the world today. Mobile web applications, cdma, and gsm essay 1524 words. The coverage area of cdma is more limited than gsm. Gsm uses edge as the technology for transferring data. Once cingular and att finish their upgrades, gsm will be the same. Global system for mobile communications and code division multiple access are. Gsm stands for global system for mobile communications, a radio system used in mobile devices. Cdma does not assign a specific frequency for each user placing or receiving a call. Using a comparative analysis research method between cdma and gsm technologies that includes comparisons of. Comparison between cdma and tdma air interface for.
Cdma has faster data rate as compared to gsm as evdo data transfer technology is used in cdma which offers a maximum download speed of 2 mbps. As the european union permissions gsm use, so cdma is not supported in europe. Gsm and cdma both serve as shorthand for different mobile phone. But what are gsm and cdma, and how do they affect your phone, service, and coverage. Gsm and cdma are two dominant technologies in the world of mobile communication. The cellular mobile service is being used everywhere in the world. Gsm stands for global system for mobile communication, and unless. Cdmacode division multiple access it is a 3gpp2 tech. Cdma vs wcdma cdma stands for code division multiple access, which is a type of algorithm used in telecommunications to squeeze more usable channels. If youre shopping for a mobile phone, youre in for a lot of acronyms. As cellular technology develops, the carrier fights over standards like cdma vs.
In north america, especially in rural areas, more coverage is offered by cdma as compared to gsm. Modulation scheme cdma code division multiple access. When someone makes a call using a cdma phone on a cdma network, the receiver will also get a unique key so that the combined signal can be split apart into an individual call. Difference between cdma and cdma pdf semantic scholar. It is used by sprint and verizon for their cell phone service, and any tracfone devices that use cdma typically is using verizons networks so, gsm or cdma cell phones are simply cell phones that run on one of those two networks.
All rf wireless systems produce a decreasing signal as the distance between the transmitter and the receiver increase. When you make a call, the network assigns a time slot and channel to. If you want to check out what other phones work on which technology, you can use our phone compatibility tool below. On the other hand, cdma uses evdo for data transferring. Gsm vs cdma difference between cdma and gsm youtube. Cdma and tdma currently have coverage anywhere there is digital. Gsm global system for mobile communication it is a 3gp tech european. Gsm is a very straightforward standard, whereas cdma is somewhat complicated. The most common older phones that work on both technologies include the iphone 6 series and samsung galaxy s6 series. Gsm and gprs are used in iot gsm iot ec gsm iot for extended coverage is a standardbased low power wide area technology. Gsm and cdma are different technologies that phones use to connect. These two technologies differ in the way calls and data travel over the mobile phone networks. Cdma to gsm convert software vcf to xlsx convert software v. Technically gsm global system for mobile communications, originally from groupe special mobile.
Which phones can i use on both cdma and gsm networks. There are two major differences between the two protocols. A new generation of cellular standards has appeared approximately every tenth year since 1g systems were introduced in 1979 and the early to mid1980s. Gsm uses edge data transfer technology that has a maximum download speed of 384 kbps which is slower as compared to cdma. Difference between gsm and cdma with comparison chart. From a users standpoint gsm and cdma offer nearly identical features and quality. Intdmafdma, cell design requires more frequency planning which is tough job. Gsm and cdma are competing wireless technologies with gsm enjoying about an 82% market share. One of the main advantages of cdma is that dropouts occur only when the phone is at least twice as far from the base station. Pdf comparative analysis of gsm network and is95 cdma. In the simplest model, free space, the doubling the distance reduces. Gsm is the predominant technology used throughout the world, and especially in europe.
Thus, it is used in the rural areas where gsm cannot cover. The basic difference between gsm and cdma is that the gsm is a sim specific i. Network tower in each cell serves the mobile phone of that area. Difference between cdma and gsm in the world of mobile phone technology, newer and more advanced systems crop up with amazing regularity, many of which render the previous systems obsolete. Your choice of carrier and the technology it uses for its network might make the difference between being productive and connected or ending up with no signal. Gsm and cdma are the two wireless protocols used to facilitate cell phone service. Comparative analysis of gsm network and is95 cdma network. There are a physical channel and a dedicated code for each device in the.
Gsm and cdma using a measuring tool software called myspeedlite was carried out in okada town and benin city both in edo state of nigeria. This is a comparison of standards of mobile phones. The best data transfer technology it has to offer is the evdo technology, allowing for a maximum download speed of about 2mbs about 700kbps in practice, which is similar to what a dsl line. Evdo ready mobile phones are required to use this technology. 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. Gsm and cdma are the most successful cell phone technologies present in world, cdma handsets are chip based where as gsm handsets uses sim cards, using. Gsm and cdma are competing wireless technologies with gsm enjoying about an 82% market share globally. The cellular mobile service is being used everywhere in the world today.
Tdmafdma, cell frequency planning is more tedium task as frequency and time planning need to be carried out in cdma frequency planning is minimal. We take a closer look at some of the differences between gsm and cdma networks and how they matter to everyday consumers. You can compare cdma cell phone plans using wireflys comparison tool. Difference between cdma and gsm difference between. Comparison of cdma and gsm cdma code division multiple access digital cellular mobile communication technology have many merits such as. Whats the difference between these cellular standards.
Cdma mobile communication standard uses, well the obvious cdma. Cdma carriers band us and asian countries 8501900 mhz. Whereas in cdma systems entire spectrum is used which enhances voice quality. Cdma is very useful as well as interesting from a buyers perspective. Situation is however worse in cdmabased systems like is95, where qualcomm is the major ip holder. Gsm by simon hill november 15, 2019 understanding the difference between cdma and gsm two hugely important standards for radio telecommunications is crucial before buying a new. Mimo difference between tdd and fdd difference between 802. In theory, cdma, tdma and fdma have exactly the same spectral efficiency. Cdma represents multiplexing between numerous signals for optimal bandwidth availability. The key difference between gsm and cdma is the multiple access method they use. Article pdf available may 2015 with 1,146 reads how we measure reads. With lte becoming the new standard, just how important are these differences to consumers.
Difference between cdma and gsm categorized under communication, technology difference between cdma and gsm when we buy a mobile phone, we usually dont concern ourselves with the standards or technologies that our mobile phone uses. Gsm is based on wedge spectrum technology, and cdma is based on spread spectrum technology. Both the gsm and cdma are mobile telecommunication standards and work completely differently. As gsm is an international standard, so its better plan to use gsm in international roaming. Gsm is in use by 76% of users as compared to cdma which is in use by 24% users. This video is a brief explanation of the differences between gsm and cdma networks. These two technologies differ the way in which the calls and data transfer takes place over a network and mobile. Data tranfer rate cdma has faster data rate as compared to gsm as evdo data transfer technology is used in cdma which offers a maximum download speed of 2 mbps. But cdma devices do not use sim cards and use esn numbers instead. Cdma stands for code division multiple access and is less popular world wide, but more popular in america.
Intdma band width available for transmission is small which leads to compromise in quality of transmission. The differences between gsm and cdma are as follows. Using a comparative analysis research method between cdma and gsm technologies that includes comparisons of network, technology, and security. Difference between cdma and gsm gsm and cdma are two dominant technologies for mobile communication. Gsm debate, gsm wins if you plan to travel to foreign countries but cdma might have a better coverage in your area.
Compare every iphone model ever made chart the evolution of the iphone. On the other hand, in cdma the network identifies a handset by the information stored in the internal memory and hence, its handset specific. It is based on egprs which designed as a high capacity, longrange, low complexity and low energy cellular system for iot communications. What is gsm in hindi gsm full form global system for mobiles. Cdma and gsm are two different types of standards that are available for transmitting data and mobile voice services on a cell phone or mobile phone. Comparative analysis of gsm network and is95 cdma network using signal strength. Cdma to gsm convert software software free download cdma. Internet access comparison between gsm and cdma networks 95. Devices like mobile phones built for one standard of communication cannot operate on the other.
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