Question: 10. (20 points) The following chip sequences for four CDMA transmitters are given: A: (-1 -1 -1 +1 +1 -1 +1 +1) B: (-1 -1

10. (20 points) The following chip sequences for four CDMA transmitters

10. (20 points) The following chip sequences for four CDMA transmitters are given: A: (-1 -1 -1 +1 +1 -1 +1 +1) B: (-1 -1 +1 -1 +1 +1 +1 -1) C: (-1 +1 -1 +1 +1 +1 -1 -1) D:(-1 +1 -1 -1 -1 -1 +1 -1) i. Suppose A, B, and C are simultaneously sending 0. What is the resulting chip sequence in the channel? ii. Suppose a CDMA receiver gets the following chips: (-1 +1 -3 +1 -1 -3 +1 +1). Which stations transmitted? If transmitted, which bits each sent

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