Orthogonal frequency-division multiple access

Multiple access is achieved in OFDMA by assigning subsets of subcarriers to individual users.

OFDMA can be seen as an alternative to combining OFDM with time-division multiple access (TDMA) or time-domain statistical multiplexing communication.

Low-data-rate users can send continuously with low transmission power instead of using a "pulsed" high-power carrier.

Timo A. Weiss and Friedrich K. Jondral of the University of Karlsruhe proposed a spectrum pooling system in which free bands sensed by nodes were immediately filled by OFDMA subbands.[relevant?

][citation needed] OFDMA is used in: OFDMA is also a candidate access method for the IEEE 802.22 Wireless Regional Area Networks (WRAN), a cognitive radio technology which uses white spaces in television spectrum, and the proposed access method for DECT-5G specification which aims to fulfill IMT-2020 requirements for high-throughput mobile broadband (eMMB) and ultra-reliable low-latency (URLLC) applications.