Consider a CDMA system in which users A and B have the Walsh codes (-1 1 -1 1 -1 1 -1 1) and (-1 -1 1 1 -1 -1 1 1), respectively. Suppose a user transmits signal +1, 1, and 0 for data bit 1, 0, and no transmission, respectively. a. Show the output at each users receiver if A transmits a data bit 1 and B does not transmit b. Show the output at each users receiver if A transmits a data bit 1 and B transmits a data bit 0. Assume the received power from both A and B is the same. c. Show the output at each users receiver if A transmits a data bit 1 and B transmits a data bit 1. Assume the received power from B is twice the received power from A. This can be represented by showing the received signal component from A as consisting of elements of magnitude 1(+1, -1) and the received signal component from B as consisting of elements of magnitude 2(+2, -2).