0.3gmsk, qpsk,8-psk were popular 2G and 3G modulation schemes then QAM with OFDM was introduced in LTE, now which modulation technique will be used in future mobile communication.
Well 5G is still an open issue. nothing yet is standardized. But in my opinion new modulation schemes with high spectral efficiencies would be explored e.g some hybrid schemes like F-QAM or FSK-QAM.
5G radio access will be built upon both new radio access technologies (RAT) and evolved
existing wireless technologies (LTE, HSPA, GSM and WiFi)......according to Huawei.....5G will be worldwide by 2020. As Aamir said who knows some new schemes may come with hybrid technologies.
For 5G, in context to modulation schemes the objectives include the following
I do support Sandeep's view that it will be built on new Radio Access Technologies and Evolved Existing Wireless Technologies. For Further information
i think the new modulation for 5G will be beside
FBMC : Filter Bank Multi Carrier
it improved the disadvantageous of OFDM system
At present 4G LTE uses QAM with OFDM as modulation and OFDMA as access scheme. The challenge in 5G is high bit rate with mobility. Therefore, spectral efficiency is utmost important. The following indicate modulation schemes, which may find use in 5G implementations.
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