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Code division multiple access (CDMA) is a form of multiplexing (not a modulation scheme) and a method of multiple access that does not divide up the channel by time (as in TDMA), or frequency (as in FDMA), but instead encodes data with a special code associated with each channel and uses the constructive interference properties of the special codes to perform the multiplexing. CDMA also refers to digital cellular telephony systems that make use of this multiple access scheme, such as those pioneered by Qualcomm, and W-CDMA by the International Telecommunication Union or ITU. |
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Results 1 - 2 of 2 matches |
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This research study, led by CFO Research in collaboration with Fiberlink provides valuable insight into how organizations are dealing with sustained growth in the number of mobile workers and the costs associated with managing them.
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| By : Quocirca |
Published Date: May 25, 2005 |
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Email has grown rapidly through open Internet standards and the proliferation of laptops and personal computers. When Canadian company RIM combined cell phone ubiquity with two-way pager simplicity in the BlackBerry, mobile email evolved from laptop connection to encompass a more portable form factor.
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802.11, Bluetooth, CDMA, GPS, Mobile Computing, Mobile Data Systems, Mobile Workers, PDA, RFID, Smart Phones, WiFi, Wireless Application Software, Wireless Communications, Wireless Hardware, Wireless Infrastructure, Wireless Messaging, Wireless Phones, Wireless Security, Wireless Service Providers, WLAN |
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