ECED 3511 Final Exam 2015 4 Problem 3: (OFDM) Consider an OFDM system with a 128 sub-carriers separated by 4.125 MHz. 1. Compute the following parameters What is the maximum possible symbol rate on each subcarrier? . If QPSK is used on each subcarrier what is the maximum possible bit-rate overall? What is the time length of one OFDM symbol? 2.
Question: OFDM is a popular wireless physical layer transmission technique thatmodulates a large number of independent (orthogonal) carriers. OFDM isused in 4G, 5G, 802.11a, and many other systems.
Consider an OFDM system with total passband B = 5 MHz with N = 512 sub-carriers. The channel has a maximum delay spread of Td = 4 ps. Answer the following questions. (15 Marks) (a) What is the symbol time of a corresponding single-carrier system? (2 Marks) (b) What is the sample time of the OFDM system and the raw symbol time without the cyclic ...
Solved 2. Consider an OFDM system with total passband B = 5 - Chegg
If the transmitter used a 16 channel OFDM modulation with 16 QAM, can you decode the transmitted message (use standard 16QAM constellation shown in Figure 1)? The transmitted message is an 8-character word. Each character is transmitted in the form of a binary ASCII string ('01100001' is the ASCII binary code for character 'a').
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