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| Dec 3, 2009 |
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Standards >
Data Transmission Standards >
Modulation Techniques >
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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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Definition continues below.
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CDMA Multimedia
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3 Matches
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Increasing Efficiencies in the Data Center - Making Your Wide Area Network Work for You
sponsored by Datalink Corporation
VIDEOCAST:
Please join Kent Christensen, Virtualization Practice Manager, Datalink, as he analyzes and explains WAN efficiencies between data centers. In addition to the topic of transferring data over the WAN more efficiently between the primary and secondary data centers, much of the presentation will apply to small remote offices as well.
Posted: 27 Aug 2009 | Premiered: 27 Aug 2009
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Strategic Steps for Moving to LTE
sponsored by Alcatel-Lucent
VIDEO:
The growing success of mobile data services and the success of end user devices, such as the iPhone, are causing performance bottlenecks into our next generation mobile networks. This videocast takes a look at how LTE, the next generation of wireless networking, is dealing with these challenges while taking the user experience to the next level.
Posted: 24 Sep 2009 | Premiered: 24 Sep 2009
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Wireless Broadband Solutions -- The Right Technology for Service Providers
sponsored by Motorola, Inc.
WEBCAST:
In this webinar, Ray Savage presents Motorola wireless broadband solutions designed especially for service providers. Specifically, Ray covers Motorola's Point to Multi-Point (PMP) solutions. These solutions will be compared with competing, unsynchronized technologies. Watch this webinar to learn more.
Posted: 21 Aug 2009 | Premiered: 21 Aug 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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