Adaptive Physical Layer Selection for Bluetooth 5: Measurements and Simulations

Table 3

Root Mean Square Error (RMSE) between the measured values and polynomial equations of different order.

PHYs	RMSE-1st-order polynomial	RMSE-2nd-order polynomial	RMSE-3rd-order polynomial	RMSE-4th-order polynomial
2 Mbps-Un	40.08	24.92	22.23	21.69
1 Mbps-Un	23.31	13.11	12.23	12.16
1 Mbps-C	2.29	1.13	0.89	0.87