11. Sketch the mapping of 16-QAM modulation with Gray coding. T... | Filo
11. Sketch the mapping of 16-QAM modulation with Gray coding. T... | Filo
5.5K views7 months ago
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SOLVED:Consider an OFDM system with 48 subcarriers carrying data and which uses 16-QAM modulation of each subcarrier and a coding rate of 2 / 3. There are also four pilot subcarriers that are used for frequency and phase reference, to ensure that spectral lines are not created, and to facilitate carrier recovery. The pilot carriers can be ignored in this problem so consider 48 subcarriers. The modulation efficiency achieved for this particular implementation of 16-QAM is 2.98 bit / s / Hz (a) Ho
SOLVED:Consider an OFDM system with 48 subcarriers carrying data and which uses 1…
Apr 8, 2021
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