Table 4.

Six kinds of Polar codes are evaluated with 120,000 blocks.

Codewords ($R=\frac{1}{4}$)	$N=4096$	$N=8192$	$N=16,384$	$N=32,768$	$N=65,536$	$N=131,072$
Bit throughput of using MCD (Mbps)	72.63	64.33	61.77	56.61	53.27	50.64
Bit throughput of not using MCD (Mbps)	12.77	12.14	11.60	10.85	9.93	9.36
CPU usage efficiency	89.87%	85.72%	83.42%	84.77%	89.71%	93.20%
Frame errors	1432	1351	663	294	147	117
FER	1.19e−2	1.13e−2	5.53e−3	2.45e−3	1.23e−3	9.75e−4

The number of threads MPI opens is 8. The CPU usage efficiency is the peak value that appears when codewords are evaluated. Take the bit throughput of average value by multiple measurements.