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It is apparent that a good trade-off in implementing a Massive MIMO base station is a coarse quantization with 2 bits, a Q's wordlength of 7 bits, and a Theta's wordlength of 10 bits.
With such a reduced wordlength for matrix Q, vector rotations can be easily implemented in inexpensive hardware, such as reasonably sized Field-Programmable Gate Arrays.
This allows the reduction of the cost of massive MIMO base stations, which is a key impediment to their widespread deployment.
This last statement completes my talk.
If there are any questions, I shall be glad to take them.
Thank you for listening!
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IEEE/ICACT20210153 Slide.16
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