An embedded system acquires hardware device information of an electronic device via a universal serial bus port, sets parameter information for each hardware device of the electronic device, and generates a control file recording one or more control commands that are generated according to the parameter information. An asymmetric power control scheme adjusts the transmit power of a user equipment in an asymmetric manner, e. Near-end crosstalk may be reduced using a lookup table device. The camber, in turn, is parallel to a curve that is defined by two camber lines. The apparatus is characterized by the hood which includes a wall and a baffle.