Continue to Site

Welcome to EDAboard.com

Welcome to our site! EDAboard.com is an international Electronics Discussion Forum focused on EDA software, circuits, schematics, books, theory, papers, asic, pld, 8051, DSP, Network, RF, Analog Design, PCB, Service Manuals... and a whole lot more! To participate you need to register. Registration is free. Click here to register now.

Concept question of CDMA

Status
Not open for further replies.

guillaumechen

Junior Member level 1
Joined
Mar 9, 2009
Messages
18
Helped
0
Reputation
0
Reaction score
0
Trophy points
1,281
Activity points
1,391
Hi everyone,

I have a concept question about CDMA.

For the following problem:
two CDMA codes containing 1 and -1 values that do not allow the two receivers to extract the original transmitted bits from the two CDMA senders.

From the above condition, I consider that the cause of this problem is due to the same code using by different users at the same time (without any delay) [i.e. cross correlation & auto correlation are both "one"]. Is my assumption correct or not? Thanks a lot!!

cross correlation = The correlation of two different codes. The value should be as small as possible.
auto correlation = The correlation of a code with a time-delayed version of itself. In order to reject multi-path interference, this function should equal 0 for any time delay other than zero.
 

Status
Not open for further replies.

Similar threads

Part and Inventory Search

Welcome to EDABoard.com

Sponsor

Back
Top