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Code division multiple access - Wikipedia, the free ...
Code division multiple access (CDMA) is a channel access method utilized by various radio communication technologies. It should not be confused with the mobile phone standards called ...
CDMA2000 - Wikipedia, the free encyclopedia
CDMA2000 (also known as IMT Multi‑Carrier (IMT‑MC)) is a family of 3G [1] mobile technology standards, which use CDMA channel access, to send voice, data, and signaling data ...
CDMA Online
A site featuring CDMA-related interactive tutorials, discussion forums, free classifieds, and information on CDMA seminars and products from Space 2000
CDMA - What does CDMA stand for? Acronyms and abbreviations by the ...
Acronym Definition; CDMA: Code Division Multiple Access: CDMA: Canadian Direct Marketing Association: CDMA: Canadian Drug Manufacturers Association: CDMA: Chain Drug Marketing ...
Nortel: Solutions : CDMA Networks: Overview
Code Division Multiple Access (CDMA) technology is a driving force behind wireless networks around the globe. Our innovative CDMA portfolio of core and access products allows ...
CDG : Technology : Technology
CDG/CDMA in the News ; Media Contact; Events; Message Room; Technology. CDMA Technology; CDMA2000. CDMA2000 Technologies; CDMA450; Advantages; Evolution; Spectrum; cdmaOne
What is CDMA? Definition of CDMA: Cell Phone Glossary
What is CDMA? In this definition of CDMA, we learn that Code Division Multiple Access is a competing cell phone service technology to GSM, which is the world's most widely used ...
Introduction to CDMA
This provides an introduction to Code Division Multiple Access (CDMA) communications, covering a Radio Carrier Station (RCS) and a Fixed Subscriber Unit (FSU).
CDMA Tutorial
CDMA overview. The UMTS World is an 3G mobile system news and information provider. Comprehensive coverage of UMTS / 3G news, licensing, business developments, 3G WCDMA ...
CDMA Service Software / ESN Changer, SPC Unlocker...
CDMA Service Software and Equipment!! On this site you can find all new CDMA stuff. CDMA Workshop, ESN and MEID Changers, SPC Unlockers and other software for most CDMA models!
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Code division multiple access (CDMA) is a channel access method utilized by various radio communication technologies. It should not be confused with the mobile phone standards called cdmaOne and CDMA2000 (which are often referred to as simply "CDMA"), which use CDMA as an underlying channel access method.

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Wikipedia about Cdma

Code division multiple access (CDMA) is a channel access method utilized by various radio communication technologies. It should not be confused with the mobile phone standards called cdmaOne and CDMA2000 (which are often referred to as simply "CDMA"), which use CDMA as an underlying channel access method.

One of the basic concepts in data communication is the idea of allowing several transmitters to send information simultaneously over a single communication channel. This allows several users to share a bandwidth of different frequencies. This concept is called multiplexing. CDMA employs spread-spectrum technology and a special coding scheme (where each transmitter is assigned a code) to allow multiple users to be multiplexed over the same physical channel. By contrast, time division multiple access (TDMA) divides access by time, while frequency-division multiple access (FDMA) divides it by frequency. CDMA is a form of "spread-spectrum" signaling, since the modulated coded signal has a much higher data bandwidth than the data being communicated.

An analogy to the problem of multiple access is a room (channel) in which people wish to communicate with each other. To avoid confusion, people could take turns speaking (time division), speak at different pitches (frequency division), or speak in different languages (code division). CDMA is analogous to the last example where people speaking the same language can understand each other, but not other people. Similarly, in radio CDMA, each group of users is given a shared code. Many codes occupy the same channel, but only users associated with a particular code can understand each other.

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thumb|A CDMA mobile phone