A baseband digital receiver for a polar binary non-return-to-zero (NRZ) coded signal uses an optimum MAP decision device. The energy-per-bit-to-noise ratio (Eb/No) is 0 dB. If the bits have unequal probability in the ratio 2:1, what is the reduction in the bit-error rate compared to the case when a ML decision devic used? (Express the reduction as a ratio of the BER in the MAP case to that in the ML case). O a. 0.61 O b. 0.12 O c. 0.06 O d. 0.9 O e. 0.32
A baseband digital receiver for a polar binary non-return-to-zero (NRZ) coded signal uses an optimum MAP decision device. The energy-per-bit-to-noise ratio (Eb/No) is 0 dB. If the bits have unequal probability in the ratio 2:1, what is the reduction in the bit-error rate compared to the case when a ML decision devic used? (Express the reduction as a ratio of the BER in the MAP case to that in the ML case). O a. 0.61 O b. 0.12 O c. 0.06 O d. 0.9 O e. 0.32
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Transcribed Image Text:A baseband digital receiver for a polar binary non-return-to-zero (NRZ) coded signal uses an optimum MAP decision device. The energy-per-bit-to-noise ratio
(Eb/No) is 0 dB. If the bits have unegual probability in the ratio 2:1, what is the reduction in the bit-error rate compared to the case when a ML decision device is
used? (Express the reduction as a ratio of the BER in the MAP case to that in the ML case).
O a. 0.61
O b. 0.12
O c. 0.06
O d. 0.9
O e. 0.32
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