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Suppose there is a 40 Gbit/s signal which has a symbol rate of Gbaud/s. Which modulation format is being used?
Suggested Answer: C
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11 comments · newest first
RO
Roxane
11 months ago
Wait, how does that even work?
RO
Rolande
12 months ago
Not so sure about that, could be 4QAM too.
AS
Ashlyn
12 months ago
40 Gbit/s with Gbaud? Sounds like QPSK to me.
OR
Oretha
1 year ago
I think it's DP-QPSK actually.
ME
Meghann
1 year ago
It's definitely QPSK, right?
CA
Carmela
1 year ago
If the signal is 40 Gbit/s, I think that means the symbol rate should be 20 Gbaud for QPSK, but I’m not completely confident in that calculation.
VA
Vallie
1 year ago
I’m a bit confused about the difference between QPSK and DP-QPSK. I feel like I might be mixing them up in my head.
MO
Monte
1 year ago
I remember practicing a similar question where we had to determine modulation formats based on bit rates. I think QPSK could be the right choice since it doubles the data rate.
JO
Jody
1 year ago
I think the symbol rate is key here, but I'm not entirely sure how to calculate it from the given bit rate.
RO
Rodolfo
1 year ago
This seems like a straightforward accounts payable question. I'll focus on the key details - the supplier hasn't sent the invoice yet, but the buyer will pay next month. That means the amount should be recorded as an accrued expense.
KE
Keshia
1 year ago
Modified curl-ups sound familiar; I just can't recall if they're primarily for core strength or overall muscular assessment.