Intra-Body Communication (IBC) is a non-RF, short range communication technique which uses the human body as a transmission medium ensuring a safe data exchange system. In this thesis, a new device, \textit{Live Wire}, is treated. It is based on the use of a transmitter (TX), directly connected to ground through a low impedance path and a wearable receiver device (RX), powered by batteries and capacitively coupled to the ground, thus providing a high impedance path to ground. It supports visually impaired people as a navigation indoor and object detection system providing an alternative to other biomedical Wireless Body Area Network (WBAN) techniques.