What is SDM

The last degree of freedom on optical fibers

SDM (Spatial Division Multiplexing)
SDM explores the last degree of freedon in optical fibers to code information...


Improved flexibility.

FSO (Free-space optical communication)
An optical communication technology that uses light propagating in free space to wirelessly transmit data for telecommunications or computer networking.

What is 5G

Much beyond the current 4G

5G (5th generation mobile networks or 5th generation wireless systems)
5G enotes the proposed next major phase of mobile telecommunications standards beyond the current 4G/IMT-Advanced standards. (Wikipedia)

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