Janab if you have a wifi router on which DD-WRT firmware can be flashed or your router has both router and bridge modes, you can configure them to take signals from Wi-Fi and rebroadcast them. It works sort of a repeater or wi-fi signals extender to parts of the house where there are low signal problems.
It also allows you to place your mifi device closer to windows or in areas of house with strong signals and place the bridge router to serve all remote corners and rooms.
The above article gives step-by-step instructuctions.
You can find more info on: http://www.dd-wrt.com/site/index
