Where does the user get the pseudorandom code from in CDMA system?

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In summary, the pseudorandom code used in CDMA systems is generated by the user's device using a predetermined algorithm. It is unique to each user and changes for each transmission to maintain security. It helps prevent eavesdropping and interference from other users, but is not the only security measure in CDMA systems. Other measures, such as encryption, are also used.
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osamaalshaibi
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hello every one

Could anyone please help me? I have question about CDMA.

Where does the user get the pseudorandom code from in CDMA system?

thanks
 
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  • #2
This is out of my area of understanding but here's what http://www.bee.net/mhendry/vrml/library/cdma/cdma.htm"
has to say:
The receiver, as described earlier, generates its own complex PN code that matches the code generated by the transmitter.
Welcome to PF
 
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  • #3
for your question! In CDMA systems, the pseudorandom code is generated by a special algorithm known as a spreading code. This code is unique to each user and is used to spread the user's signal across a wide frequency band. The user's device will receive the code from the base station during the initial connection setup process. The code is then stored in the device and used for all subsequent communications on the network.
 

Related to Where does the user get the pseudorandom code from in CDMA system?

1. Where does the user get the pseudorandom code from in CDMA system?

In CDMA systems, the pseudorandom code is generated by the user's device using a predetermined algorithm. This code is unique to each user and is used to spread the user's signal over a wider bandwidth, allowing multiple users to share the same frequency at the same time.

2. How is the pseudorandom code different from a random code?

A pseudorandom code is not truly random, as it is generated using a mathematical algorithm. However, it appears random to an outside observer and is used in CDMA systems to create a code that is unique to each user and unpredictable to others.

3. Can the pseudorandom code be changed or modified?

Yes, the pseudorandom code can be changed or modified by the user's device. In fact, the code is changed for each transmission in order to maintain security and prevent eavesdropping or interference from other users.

4. How does the pseudorandom code help with security in CDMA systems?

The pseudorandom code helps with security in CDMA systems by making it difficult for other users to intercept or interfere with the user's signal. Since each user has a unique code that is constantly changing, it is nearly impossible for unauthorized users to decipher or replicate the code.

5. Is the pseudorandom code the only security measure in CDMA systems?

No, the pseudorandom code is not the only security measure in CDMA systems. Other security measures, such as encryption, are also used to protect the user's data and ensure privacy. The pseudorandom code is just one component of the overall security system in CDMA technology.

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