With OFDMA, multiple users are assigned access to subsets or subcarriers . The ability to tap into smaller segments of the frequency spectrum with timed functionality will become even more important in 5G, where data will travel on millimeter waves.7 Nis 2017
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Phase shift keying: 5G technology implements quadrature phase shift keying, QPSK as the lowest order modulation format . Although this will provide the slowest data throughput it will also provide the most robust link and as such it can be used when signal levels are low or when interference is high.
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