The definition of Pg is defined to be the rate of change of the PN chip rate to the data rate. What is the Pe or BER for:
a. An IS-95 CDMA DSSS with QPSK modulation system and assuming K = 20 users sharing the same 1.25MHz channel, if the maximum Eb/No of 7.8 dB is provided for each user and the PN code lengths are 32,678 chips ( 2E+15).
b. Using actual IS-95 2G system the provided bit rate is 9600 what it the BER vs. the lS-95 CDMA above