FORM B LO2 8. A suitable value for the preamble in practical OFDM systems is a,
ID: 2293816 • Letter: F
Question
FORM B LO2 8. A suitable value for the preamble in practical OFDM systems is a, 48% of the time domain. b, 48% of the frequency domain. C, 2% of the time domain. d, 2% of the frequency domain. e, 12.5% of the time domain. f, 12.5% of the frequency domain. g. All of the above is correct h. None of the above is correct. 9. Which one of the following numbers could be an FFT length for OFDM systems a. 100. b. 1000. c. 120 d. 48. e. 256. f. All above is correct. g. None of the above is correct 10. If you are walking in a desert area without any building aroun d, except a cellular communication tower by Ooredoo. Your channel will look like c) power Path 1 a) b) powerPa powerPath time time time d) All of the above is e) None of the above correct s correct 11. When we increase the modulation order from QPSK to 16QAM for the same channel, what happens with the noise effect at the receiver a. It increases. b. It decreases. c. Nothing. d. All of the above is correct. e. None of the above is correct.Explanation / Answer
1.g
All the options are correct as 50% in time domain and frequency.
2.e
In FFT 256 is 2^8
3.b
noise effect is reduced
Related Questions
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.