In Raspberry pi command ifconfig does not show wlan0.

Question

Sir, 

I am new for raspberry pi. i want to control raspberyy pi with matlab support package wirelessly. For that purpose  I have to connect Rpi with computer via wifi.

But i am not able to catch Wifi in Rpi with 802.11n wifi adapter. It is showing when i use command lsusb and dmesg.

When I use if config command then it does not show  wlan0 it is only showing eth and lb.There are some command responses in Zip file.

 

Sir please help me as soon as possible. It's urgent because  it's my final year project.