Transmitting data wireless over a short distance. Bluetooth and Wi-Fi Direct are examples of personal area networks (PANs). See Bluetooth and Wi-Fi Direct. In the mid-1990s, IBM's Almaden Research ...

He wants to build a system that could be used for a PAN (Personal Area Network). To do this he’ll have to figure out a way to build the system inexpensively and using less than a watt of power.