International Telecommunication Union kicked off global race towards next generation mobile Network IMT-2020 and beyond in early 2012. Major challenges in the next generation mobile communication network is enhanced spectral efficiency due to scares in frequency band standardized for mobile communication and green energy communication to reduce CO2 emission.
In user point of view, high speed data traffics and user following services are in demand. Higher user data traffic demands and lower energy consumption in network operations will be addressed with heterogeneous network deployment with densely deployed low power nodes which are used to transmit and receive user traffics and high mobility user demand and high probability interference within heterogeneous environments will be addressed with coordinated spatial signal processing in cloud and so the network structure is Heterogeneous Cloud Radio Access Network (H-CRAN).
Micro-Base Stations (MBSs) are deployed for control signaling and seamless coverage and MBSs are high power nodes in H-CRAN.
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