An OFDM system operates at 1 GHz carrier frequency over a
bandwidth of 5 MHz in an outdoor environment in a fading channel with a maximum
excess delay of 17 _s.
a. OFDM systems usually take the ratio of cyclic prefix
duration, TG, to that of the symbol duration, T, as TG/T=1/4,1/8, 1/16 or 1/32.
Choose a suitable length for cyclic prefix and symbol duration in order to
mitigate ISI.
b. Noting that the number of subcarriers should be
determined as a power of 2, determine the number of subcarriers. Determine the
corresponding throughput efficiency.
c. Repeat parts (a) and (b) for an
An OFDM system operates at 1 GHz carrier frequency over a
bandwidth of 5 MHz in an outdoor environment in a fading channel with a maximum
excess delay of 17 _s.
a. OFDM systems usually take the ratio of cyclic prefix
duration, TG, to that of the symbol duration, T, as TG/T=1/4,1/8, 1/16 or 1/32.
Choose a suitable length for cyclic prefix and symbol duration in order to
mitigate ISI.
b. Noting that the number of subcarriers should be
determined as a power of 2, determine the number of subcarriers. Determine the
corresponding throughput efficiency.
c. Repeat parts (a) and (b) for an indoor environment with a
maximum delay spread of 2_s.
d. If the number of subcarriers is fixed, how does the
efficiency change as a function of the bandwidth? How does the efficiency
change as a function of the maximum excess delay?
Delivering a high-quality product at a reasonable price is not enough anymore.
That’s why we have developed 5 beneficial guarantees that will make your experience with our service enjoyable, easy, and safe.
You have to be 100% sure of the quality of your product to give a money-back guarantee. This describes us perfectly. Make sure that this guarantee is totally transparent.
Read moreEach paper is composed from scratch, according to your instructions. It is then checked by our plagiarism-detection software. There is no gap where plagiarism could squeeze in.
Read moreThanks to our free revisions, there is no way for you to be unsatisfied. We will work on your paper until you are completely happy with the result.
Read moreYour email is safe, as we store it according to international data protection rules. Your bank details are secure, as we use only reliable payment systems.
Read moreBy sending us your money, you buy the service we provide. Check out our terms and conditions if you prefer business talks to be laid out in official language.
Read more
Recent Comments