  We compute the expected sensitivity on measurements of optical depth to
reionization for a ground-based experiment at Teide Observatory. We simulate
polarized partial sky maps for the GroundBIRD experiment at the frequencies 145
and 220 GHz. We perform fits for the simulated maps with our pixel-based
likelihood to extract the optical depth to reionization. The noise levels of
polarization maps are estimated as 131 $\mu$K arcmin and 826 $\mu$K arcmin for
145 and 220 GHz, respectively, by assuming a three-year observing campaign and
sky coverages of 52% for 145 GHz and 45% at 220 GHz. Our sensitivities for the
optical depth to reionization are found to be $\sigma_\tau$ = 0.031 with the
simulated GroundBIRD maps, and $\sigma_\tau$ = 0.011 by combining with the
simulated QUIJOTE maps at 11, 13, 17, 19, 30, and 40 GHz.
