Assignment:
A CDMA system uses direct-sequence modulation with a data bandwidth of 10 kHz and a spread bandwidth of 10 MHz. With only one signal being transmitted. the received Eb/N0 is 16 dB.
(a) If the required (Eb/N0 + I0) is 10 dB, how many equal-power users can share the band? Do not neglect receiver noise.
(b) If each user's transmitted power is reduced by 3 dB, how many equal-power users can share the band?
(c) If the received E4/N0 co for each receiver, what is the maximum number of users that can share the band?
Provide complete and step by step solution for the question and show calculations and use formulas.