Question

Consider the following signal constellation:

s0 (t)=acos(2πf ₜ), 0 ≤ t ≤ T
s1 (t)=acos(2πfₜ+ 3π ), 0 ≤ t ≤ T
s2 (t)=acos(2πf + 32π ), 0 ≤ t ≤ T
s3 (t)=acos(2πfₜ +π), 0 ≤ t ≤ T
s4 (t)=acos(2πfₜ + 34π ), 0 ≤ t ≤ T
s5 (t)=acos(2πfₜ + 35π ), 0 ≤ t ≤ T

determine the spectral efficiency (bits / sec / Hz), assuming Nyquist rate

Answer 1

To determine the spectral efficiency, we need the bit rate and bandwidth of the signal, which are not provided in the question.

Step-by-step explanation:

The signal constellation provided consists of five different signals, each represented by a mathematical expression. To determine the spectral efficiency, we need to calculate the number of bits transmitted per second for each signal and divide it by the bandwidth. The Nyquist rate can be used to determine the bandwidth, which is twice the highest frequency component in the signal.

However, the question does not provide information about the bit rate or the bandwidth of the signal. Without this information, it is not possible to accurately determine the spectral efficiency.