Existing Concepts

Person-centered network concepts were developed from a Massachusetts
Institute of Technology (MIT) idea [6] from 1995 to use the intrabody electrical
currents for communication between the devices attached to the
human body. It was first accepted by IBM Research [7] and afterwards experienced
many variations developed by different research institutions or companies.
The different variety of PAN solutions include:
• Oxygen project (MIT) [8];
• Pico-radio [9];
• Infared Data Association (IrDA) [10];
• Bluetooth [11];
• IEEE 802.15 [12].  The Bluetooth concept, originally developed as a cable replacement, is
becoming widely accepted, and some of its ideas are incorporated in the
ongoing IEEE 802.15 standards concerning PANs.