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DEFINITION: What is Code-Division Multiple Access (CDMA)?Also see CDMA One, CDMA2000, and W-CDMA. CDMA (Code-Division Multiple Access) refers to any of several protocols used in so-called second-generation (2G) and third-generation (3G) wireless communications. As the term implies, CDMA is a form of multiplexing, which allows numerous signals to occupy a single transmission channel, optimizing the use of available
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CDMA Reports
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Mobile Wireless (Cellular) Standards
sponsored by Global Knowledge
WHITE PAPER:
When it comes to understanding mobile wireless (cellular) standards, things can get confusing. There are two significant global cellular standards that are in use today. Mobile handsets, including smartphones, usually are designed to support one or the other. This white paper will help you better understand cellular standards.
Posted: 25 Jan 2010 | Published: 25 Jan 2010
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The Promise of Mobile Unified Communications
sponsored by BlackBerry
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Posted: 09 Jan 2009 | Published: 09 Jan 2009
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CDMA DEFINITION (continued): … bandwidth. The technology is used in ultra-high-frequency (UHF) cellular telephone systems in the 800-MHz and 1.9-GHz bands.CDMA employs analog-to-digital conversion (ADC) in combination with spread spectrum technology. Audio input is first digitized into binary elements. The frequency of the transmitted signal is then made to vary according to a defined pattern (code), so it can be intercepted only by a receiver whose frequency response is programmed with the same code, so it follows exactly along with the transmitter frequency. There are trillions of possible frequency-sequencing codes, which … CDMA definition sponsored by SearchTelecom.com, powered by WhatIs.com an online computer dictionary
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