1. In your own words, how does Code Division Multiplexing (CDM) scheme work and how does it use the spread spectrum technique?
2. Using 8-digit Walsh codes: Show the encoding and decoding process of 3 users having data, '00', '01', and '10' respectively: Use the XNOR gate to convert the data into spread codes.
3. Using 8-digit Walsh codes: Show the encoding and decoding process of 3 users having data; '00', '01', and '10' respectively: Use the XOR gate to convert the data into spread codes.
4. Do research about Wi-Fi, what it is and how it works?