Orthogonal frequency division modulation. A modulation technique used by IEEE 802.11a-compliant wireless LANs for transmission at 6, 9, 12, 18, 24, 36, 48, and 54 Mbps.
Orthogonal Frequency Division Modulation Method used for carrier modulation in digital transmissions. A spread spectrum technique, it combines good noise resistance, immunity to reflections and efficient use of the spectrum.
Orthagondal Frequency Division Multiplexing. Provides protection against interfering signals and multi-path propagation due to reflections from hills or buildings.
Orthogonal Frequency Division Multiplexing
A method of modulating broadcast data signals to minimize interference among channels that are near each other in frequency. OFDM is a type of frequency division multiplexing (FDM) often used in wireless networking. See FDM.
Orthogonal Frequency Domain Modulation PC - PPS
A method of digital modulation in which a signal is split into several narrowband channels at different frequencies. OFDM is similar to conventional frequency-division multiplexing (FDM). The difference lies in the way in which the signals are modulated and demodulated. Priority is given to minimizing the interference, or crosstalk, among the channels and symbols comprising the data stream. Less importance i splaced on perfecting individual channels. (802.11a WLAN, 802.16 and WiMAX use OFDM.)
A type of modulation technology that separates the data stream into a number of lower-speed data streams, which are then transmitted in parallel. Used in 802.11a, 802.11g, and powerline networking.
A technique that splits a wide frequency band into a number of narrow bands and inverse multiplexes data across sub-channels.
A multicarrier modulation scheme that broadcasts on many frequencies, reducing interference from collisions with walls and objects.