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Cdma
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Spread spectrum
in Digital Communications
Main articles
Spread spectrum
Code division multiple access (CDMA)
History
Hedy Lamarr
Commercial use
More...
Spread spectrum
Methods
Direct-sequence spread spectrum
(DSSS)
Frequency-hopping spread spectrum
(FHSS)
Chirp spread spectrum
(CSS)
Time-hopping spread spectrum
(THSS)
CDMA
Schemes
W-CDMA
TD-CDMA
TD-SCDMA
DS-CDMA
FH-CDMA
MC-CDMA
Major implementations
Space Network
(NASA)
GPS
Galileo
GLONASS
Bluetooth
Cordless phones
:
DECT
Cellular
EV-DO
Mobile
IS-95
(aka cdmaOne)
CDMA2000
(aka IS-2000)
Also
Qualcomm
Verizon
Major concepts
PN (pseudorandom noise) code
Chip
Near-far problem
Power spectral density
(PSD)
Process gain
Rake receiver
Low probability of intercept
See also
Digital communication
Modulation
Statistical multiplexing
Waveform
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Template:Mobile telecommunications standards
Template:Comparison of mobile Internet standards
Category:Code division multiple access
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