X-Nico

2 unusual facts about Orthogonal frequency-division multiple access


Hui Liu

After that, he worked as a chief scientist at the Cwill Telecom and by 2000 became a founder of Adaptix at which he developed many broadband networks which used OFDMA in cellphones.

WiMAX

Modulation is chosen to be more spectrally efficient (more bits per OFDM/SOFDMA symbol).


Beamforming

Beyond 3G (4G, 5G, …) — More advanced beamforming solutions to support SDMA such as closed loop beamforming and multi-dimensional beamforming are expected

IEEE 802.11ac

“Space Division Multiple Access” (SDMA): streams not separated by frequency, but instead resolved spatially, analogous to 11n-style MIMO

Multi-user MIMO

SDMA: Enabling MU-MIMO, network MIMO (CoMP), and remote radio equipments

SDMA

"Space-Division Multiple Access", a channel access method used in communication (for instance in MIMO technology)

Single channel per carrier

Where multiple access is concerned, SCPC is essentially FDMA.

Time division multiple access

In radio systems, TDMA is usually used alongside Frequency-division multiple access (FDMA) and Frequency division duplex (FDD); the combination is referred to as FDMA/TDMA/FDD.


see also