5G networks will rely on an encoding system known as Orthogonal Frequency Division Multiplexing (OFDM). Similar in many respects to the encoding associated with 4G LTE, the 5G edition of OFDM will continue to split one data stream across several channels and frequencies. Specifically, experts believe that 5G internet networks will be built upon a Cyclic-Prefix (CP) OFDM system. With OFDM, CP acts as a buffer region, thereby increasing network reliability.
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