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cdma technology overview_36CDMA Technology Overview
CDMA Technology Overview
1
Why CDMA?
C ode D ivision M ultiple A ccess
CDMA Technology Overview
CDMA is extremely robust and provides excellent audio quality
Q CDMA is the technology of choice for both 800 MHz Cellular and 1900 MHz PCS service providers Q CDMA satisfies CTIA Users’ Performance Requirements Q CDMA provides high capacity (many times the capacity of AMPS) Q CDMA provides privacy through its coding scheme
2
What is Multiple Access?
Multiple Access: Simultaneous private use of a transmission medium by multiple, independent users. Since the beginning of telephony and radio, system operators have tried to squeeze the maximum amount of traffic over each circuit Types of Media Twisted pair - copper Coaxial cable Fiber optic cable Air interface
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