Problem
1. One advantage of higher spread bandwidths is their ability to handle higher information rates. Are there any other advantages? Are there any disadvantages?
2. What is the major disadvantage of the self-synchronizing scrambler described when used with unreliable wireless channels?
3. Compute the autocorrelation properties of the four-times-oversampled Barker code described. The sequence (+++++--++-+-+) is a Barker code of length 13. What are the cross-correlation properties of the two sequences?