Question

A single-carrier wireless communication system proposes the use of square M-QAM modulation (that is, M = 2ℓ, where ℓ is an even integer) and SRRC pulses of roll-off factor a, where

a = D₁/14 + D₂/42 + D₃/51,
and D₁D₂D₃ are the last three digits of your student ID. (Example: If the last three last digits are "482" rhen a = 0.2767). The lowpass bandwidth is W = 1 MHz. What is symbol rate R (symbol./s) of this system?

Answer 1

The symbol rate R of a single-carrier wireless communication system with square M-QAM modulation can be determined using the formula R = 2W/√M, where W is the lowpass bandwidth and M is the size of the modulation scheme.

Step-by-step explanation:

The symbol rate R of a single-carrier wireless communication system can be determined using the formula:

R = 2W/√M

Where W is the lowpass bandwidth and M is the size of the modulation scheme. In this case, the modulation scheme is M-QAM with M = 2ℕ. Plug in the given values:

R = 2 * 1 MHz / √(2ℕ)

R = 2 * 1 MHz / √16

R = 2 * 1 MHz / 4

R = 0.5 MHz

Therefore, the symbol rate R of this system is 0.5 MHz (symbol/s).