28-05-2013, 12:32 PM
A SEMINAR ON CDMA TECHNOLOGY
CDMA.pptx (Size: 949.03 KB / Downloads: 31)
What is CDMA?
Stands for Code Division Multiple Access.
It is a digital cellular spread-spectrum modulation technique.
It works by converting speech into digital information.
Each signal is encoded differently using a unique code.
Working of CDMA
data, spreads it out over the entire available bandwidth.
CDMA is a form of spread spectrum.
each phone's data has a unique code.
Feature of CDMA
Vocoder
Privacy and Security
High Speed Rate of Data
Capacity Dependent on Number of Users
ADVANTAGES OF CDMA
No SIM card is required
Improved call quality
No separate time Access divisions
Power and bandwidth frequency remain constant
Resource allocation
No frequency management
CONCLUSION
Field Where CDMA Tops
Voice Quality
Call Security
Talk Time
Bandwidth
weight
Where CDMA needs to scores
Roaming
M-Commerce
CDMA.pptx (Size: 949.03 KB / Downloads: 31)
What is CDMA?
Stands for Code Division Multiple Access.
It is a digital cellular spread-spectrum modulation technique.
It works by converting speech into digital information.
Each signal is encoded differently using a unique code.
Working of CDMA
data, spreads it out over the entire available bandwidth.
CDMA is a form of spread spectrum.
each phone's data has a unique code.
Feature of CDMA
Vocoder
Privacy and Security
High Speed Rate of Data
Capacity Dependent on Number of Users
ADVANTAGES OF CDMA
No SIM card is required
Improved call quality
No separate time Access divisions
Power and bandwidth frequency remain constant
Resource allocation
No frequency management
CONCLUSION
Field Where CDMA Tops
Voice Quality
Call Security
Talk Time
Bandwidth
weight
Where CDMA needs to scores
Roaming
M-Commerce