A group of IEEE standards for wireless personal area networks (WPANs). Following are the individual technologies. See WPAN.

802.15.1 - Bluetooth
Working with the Bluetooth SIG, the IEEE standardized the lower layers of the Bluetooth specification. Approved by the IEEE in 2002, 802.15.1 is fully compatible with Bluetooth 1.1. See Bluetooth.

802.15.2 - WPAN and WLAN Co-existence
Explores methods for interoperability between WPANs and WLANs as well as the ability to transmit in the same geographic area without interference.

802.15.3 - High Rate Systems
A WPAN standard for data rates greater than 20 Mbps.

802.15.3a - Very High Data Rate - UWB
A variety of proposals were reviewed for the ultra-wideband (UWB) standard, but the Task Group was dissolved in 2006. The IEEE's involvement helped to narrow many proposed methods into two, one of which was multiband OFDM (MB-OFDM). MB-OFDM was adopted by the WiMedia Alliance. See UWB.

802.15.4 - Low Data Rate Systems
A WPAN standard for devices that can run on batteries for months and years. Nodes can be configured as reduced function devices (RFDs), which communicate with full function devices (FFDs) only. FFDs can communicate with RFDs or FFDs. See ZigBee.