3: (20 Points) Assume an AWGN single path channel with BPSK modulation and the transmitter uses deterministic or fixed waveform. The signal-to- noise ratio (complex) is 5 dB and complex noise variance is 2 dB. Using MATLAB, calculate the simulated bit error rate (BER) for the following diversity schemes for two receiving antennas: 1. (5 Points) Equal Gain Combining (EGC) Diversity 2. (5 Points) Maximum Ratio Combining (MRC) Diversity 3. (5 Points) Non-coherent Diversity 4. (5 Points) Selection Diversity