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CDMA is an abbreviation of Code Division Multiple Access
WCDMA is an abbreviation of Wideband Code Division Multiple Access
CDMA is the technology spread more in USA,as it is an american standard,has many generations such as CDMA-IS95A,CDMA-IS95B,CDMA 2000,CDMA-1xEVDO ,CDMA-1xEVDV
WCDMA is the air interface of UMTS which is the 3G of the european standard GSM
The chip rate at CDMA is 1.2288 Mchip per second
The chip rate at WCDMA is 3.84 Mchip per second
The bandwidth of the CDMA is 1.25 MHz
The bandwidth of the WCDMA is 5 MHz,that's why it is called wideband as it has more bandwidth than CDMA
Also there is difference at the channels at both of them
Hello Folks
If you are asking about standards effectively there are much differences between the two standards WCDMA and CDMA, please refer to the referent standardization body for references.
But the theory is the same CDMA based on code division multiple access
They have the same way in multiplexing (code division)
But the WCDMA one have a bigger frequency (5MHz) compare to CDMA (1,25MHz)
About data rate, WCDMA ofcourse will sent data packet faster
Actually CDMA is 2G and WCDMA is 3G
Little help 4 u guys.
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