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5 . ( 2 0 pts ) As discussed in class, CDMA is a direct - sequencing method that allows simultaneous transmission of data -
pts As discussed in class, CDMA is a directsequencing method that allows simultaneous transmission of databits by multiple stations. Given a group of N stations N CDMA maps each stations databit onto a unique sequence of discrete changes in signallevels over multiple timeintervals called chips. The signal sequencing is determined by distinct Walshcodes assigned to the N stations in a way to meet orthogonality properties during the signalmixing on physical transmission medium Consider two stations S and S with Walshcodes and respectively Suppose another station S is considered with a CDMA code of
medium. In a realworld scenario, synchronization and noise could affect the extraction process.
C: Show that Ss CDMA code cannot recover the data of station S even though S overhears signals generated in the SS communication session ie Ss attempt to use its own Walshcode on the combined signal will yield a blank at volt
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