TPC

A protocol that controls power levels in an IEEE 802.11a wireless LAN (WLAN). Because 802.11a competes for spectrum with HiperLAN, the standard developed and promoted by the European Telecommunications Standards Institute (ETSI), 802.11a implementations in Europe must use TPC and dynamic frequency shifting (DFS), which dynamically shifts frequency channels. In combination, these protocols serve to eliminate interference issues with incumbent signals. See also 802.11a, channel, ETSI, frequency, HiperLAN/1, IEEE, interference, protocol, and WLAN.