Installing some drivers

hi i wanna know how to install the drivers of the
Broadcom Limited BCM43142 802.11b/g/n (rev 01)
and
alpha 1900 (AWUS1900) wifi adapter

… as i am using parrot linux as my main system not V box… i searched on internet but in vain … the drivers worked but the signal is weak .

thank you so much for your support