A wireless communications system can achieve a theoretical maximum data rate of 200 Mbps using 16-QAM modulation in a 10 MHz channel and using a single spatial stream. What data rate could theoretically be achieved if the same system used 256-QAM and 8 spatial streams in a 20 MHz channel?
The Attempt at a Solution
I tried to multiply the constellations by the number of channels (8) ... but I can not find and understand the correct formula ...
Could you help me find and understand, the mechanism of the formula?