Once the LTE is introduced, Heterogeneous network is in existence with higher probability of interference since there is no static frequency planning rather dynamic.
On the move to 5G, IMT-2020 cloud computing technique is introduced and large scale co-operative spatial signal processing will be done on cloud and one of the processing is network information coding and decoding. As spectral efficiency is one of the challenge in 5G, and the solution is H-CRAN which uses wide range of frequency bands and higher frequency bands also introducing severe interference in 5G. This network information processing could be promising key technology to battle against interference in next upcoming wireless communication 5G, which could be either inter-tier or intra-tier.
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