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.
Modulation is chosen to be more spectrally efficient (more bits per OFDM/SOFDMA symbol).
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Beyond 3G (4G, 5G, …) — More advanced beamforming solutions to support SDMA such as closed loop beamforming and multi-dimensional beamforming are expected
“Space Division Multiple Access” (SDMA): streams not separated by frequency, but instead resolved spatially, analogous to 11n-style MIMO
SDMA: Enabling MU-MIMO, network MIMO (CoMP), and remote radio equipments
"Space-Division Multiple Access", a channel access method used in communication (for instance in MIMO technology)
Where multiple access is concerned, SCPC is essentially FDMA.
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.