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

can you modify the constellation just a bit to increase boththe spectral efficiency and energy efficiency at the same time?
ifs o, show your modification and explain why

Answer 1

To increase both the spectral efficiency and energy efficiency, we can modify the signal constellation by reducing the phase difference between the symbols.

Step-by-step explanation:

To increase both the spectral efficiency and energy efficiency, we can modify the signal constellation by reducing the phase difference between the symbols. For example, we can modify the constellation by shifting all the symbols to the right by a factor of π/2. This will reduce the phase difference between the symbols and increase the efficiency of the system.