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Time Division Multiple Access. Or even Time Division Multiplexed Access.

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Code Division Multiple Access Code Division Multiple Access

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TDMA stands for the time division multiple access

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Code division multiple access

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Code division multiple access

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Code Division Multiple Access

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That is CDMA (Code Division Multiple Access) not CDMEA

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•In 1989, the Telecommunications Industry Association (TIA) endorsed a digital technology called Time Division Multiple Access (TDMA ). Just three months later, Qualcomm introduced Code Division Multiple Access (CDMA), a superior technology for wireless and data products that changed the global face of wireless communications forever.

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GSM = Global System for Mobile communications.

CDMA = Code Division Multiple Access.

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GSM - Global System for Mobile Communications (2G) uses TDMA - Time Division Multiple Access Multiplexing.

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shift registers can be used in CDMA(code division multiple access) in communication.

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Full form of CDMA is code divison multiple access and full form of GSM is Global system for mobile communications.

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CDMA stands for - code division multiple access. SIM stands for Subscriber Identity Module.

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1. Their abbreviation meanings actually give light to the manner they optimize channels. TDMA is short for Time-Division Multiple Access while CDMA is for Code-Division Multiple Access.

2. TDMA emerged and was utilized first. CDMA is the more recent technology gradually replacing TDMA.

3. TDMA chops or divides the channel into sequential time portions as each user has its respective right turn for channel use.

4. CDMA uses a process called Spread Spectrum '" scattering of digital bits in pseudo-random manner and collecting them for interpretation.

5. CDMA allows numerous users to use the channel at the same time while TDMA does not.

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Some acronyms of TDMA are: Time Division Multiple Access, Tandem Differential Mobility Analyzer, Time Division Multiplexed Access, Titanium Dioxide Manufacturers Association, Too Darn Many Acronyms, Time Demand Multiple Access or Terrace and District multicultural Association.

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Multiple access technology allows multiple cell phones to use one tower at once. The two major types of multiple access are CDMA and TDMA/GSM.

CDMA technology allows multiple user by spreading signals over multiple frequencies. TDMA/GSM gives each phone different, microscopic time slots.

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(Code Division Multiple Access) A method for transmitting simultaneous signals over a shared portion of the spectrum. The foremost application of CDMA is the digital cellular phone technology from QUALCOMM that operates in the 800MHz band and 1.9GHz PCS band. CDMA phones are noted for their call quality.

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You cannot use a WCDMA phone on a CDMA network. Wideband Code Division Multiple Access (WCDMA), despite its name, is different from and not part of Code Division Multiple Access (CDMA) networks. WCDMA is one type of 3G technology and is an extension of Global System for Mobile Communications (GSM) networks.

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GLOBAL FOR SPECIAL MOBILE COMMUNICATION SYSTEM GSM- IS DIGITAL TELEPHONY SYSTEM THAT SUPPORTS TIME DIVISION MULTIPLE ACCESS CODE AND FREQUENCY DIVISION MULTIPLE ACCESS CODE

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main disadvantage of CDMA is Degradation of forformance if the number of user will be increases an RF channel.Bez in case of CDMA 10 users can acccess at the same time.

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CDMA-(code division multiple access), uses spread spectrum technique, which spreads the bandwidth of the data uniformly for the same transmitted power.

(surce:wikipedia)

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A CDMA cell phone does many things. A CDMA cell phone, which stands for Code Division Multiple Access, can make an unlimited number of calls because there is no limit.

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OCDMA: Its nothing but Optical code division multiple access or Orthogonal code divsion multiple access..

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Wideband Code Division Multiple Access

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It stands for Wideband Code Division Multiple Access

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CDMA stands for Code Division Multiple Access, and it is a type of cell phone technology. It is the standard cell phone technology in the United States and is utilized by Sprint, Virgin Mobile and Verizon Wireless.

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CDMA is an abbreviation for Code Division Multiple Access, which is a technical term for a particular mobile phone technology that allows multiple mobile phone conversations to share the same channel.

MIN is Mobile Identifier Number.

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It is a digital standard for communications

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code division multiple access

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Giridhar Mandyam has written:

'Third-generation CDMA systems for enhanced data services' -- subject(s): Code division multiple access

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Currently the mobiles use GSM(Geo Synchronous Mobiles ) and CDMA(Code Division Multiple Accesss) techniques. GSM inturn uses TDMA(Time Division Multiplexing) or FDMA(Frequency Division Multiplexing) or sometimes both to fit in the required criteria.

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The acronym WCDMA stands for Wideband Code Division Multiple Access. It one of two mobile networks, the other being CDMA, and is specified for the 3G speed.

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Wideband Code Division Multiple Access

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CDMA is also known as code-division multiple access. It is used by almost all cell phone provider in the US. CDMA can be used to refer to 2G, 3G, and 4G communications offered by those cell phone providers.

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if your wondering what it stands for it is, Code division multiple access, but im not sure of another name.

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No, Cricket Wireless uses the CDMA (code division multiple access) technology.

Cellphones that uses Sim Cards are running on GSM (Global System for Mobile Communication)

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A CDMA repeater is a device that extends the signal range for cell phone providers that use the CDMA technology. CDMA (Code Division Multiple Access) is one of the technologies cell phone companies use for their phone service. More information on CDMA is available here: http://en.wikipedia.org/wiki/CDMA

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If your phone does not have a SIM card then it is classified as a Code Division Multiple Access (CDMA) phone. If you have a CDMA phone, then your phone is not unlockable.

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  • In FDMA all users share the satellite simultaneously but each user transmits at single frequency.
  • FDMA can be used with both analog and digital signal.
  • FDMA requires high-performing filters in the radio hardware, in contrast to TDMA and CDMA

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Cryptography & Network security

CDMA(Code Division Multiple Access)

DNS(Domain Name System)

OPS(Optical Packet Switcing)

Wireless LAN

& many more.......

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if your wondering what it stands for it is, Code division multiple access, but im not sure of another name.

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GPRS - general packet radio service

GSM - global system for mobile communication

CDMA - code division multiple access

IVRS -interactive voice response sysytem

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Multiplexing and multiple access

Modern telephone networks allow bandwidths in their channels that are much larger than those is needed for a digitalized telephone channel. Basically, a number of channels share a common transmission medium with the aim of reducing costs and complexity in the network. Multiplexing is defined as the process by which several signals from different channels share a channel with greater capacity. When the sharing is carried out with respect to a remote resource, such as a satellite, this is referred to as multiple access rather than multiplexing. There are various ways of performing this sharing:

# FDM/FDMA (Frequency Division Multiplexing/Frequency Division Multiple Access): Assigns a portion of the total bandwidth to each of the channels. # TDM/TDMA (Time Division Multiplexing/Time Division Multiple Access): Assigns all of the transport capacity sequentially to each of the channels. # CDMA (Code Division Multiplexing Access): In certain circumstances it is possible to transmit multiple signals in the same frequency and at the same time, with the receiver being responsible for separating them. This technique has been used for years in military technology, and is based on extending the spectrum of the signal and reducing the transmission power. # PDMA (Polarization Division Multiple Access): Given that polarization can be maintained, the polarization direction can be used as a multiple access technique, although when there are many obstacles noise can make it unsuitable, which is why it is not usually used in indoor installations. Outside, however, it is widely used to increase transmission rates in installations that use microwaves. # SDMA (Space Division Multiple Access): With directional aerials, the same frequency can be re-used provided the alignment of the aerials is correctly adjusted. There is a great deal of interference but this system lets frequencies obtain a high degree of reusability.

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Code Division Multiple Access can allow for multiple levels of conversation at the same time on different lines of communication. It does this by first using conventional modulation practices, then by applying a special digital modulation technique known as Spread Spectrum.Ê It allows for spectral efficiency, voice encoding and superior coverage.

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US Cellular is a CDMA network meaning that it uses Code Division Multiple Access as its primary technology. This type of network is different from other networks in its use of a code to differentiate between different conversations instead of using a different frequency for each conversation. US Cellular is not a GSM network which stands for Global System for Mobiles and instead uses CDMA technology.

  • CDMA (Code Division Multiple Access): US Cellular uses this technology as its primary technology. It uses a code to differentiate between different conversations instead of a different frequency for each conversation.
  • GSM (Global System for Mobiles): US Cellular is not a GSM network and instead uses CDMA technology.

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CDMA is short for Code Division Multiple Access. Meaning it allows people to connect easier and better. Like for example with T-Mobile, you can do the whole face chat thing. CDMA is what allows that to happen. CDMA creates a wider bandwidth to allow many people on many cell phones to connect all at the same time. The cost varies by the company.

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Tung-wah Frederick Chang has written:

'Optical code-division multiple access networks'

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