Control over Skies: Survivability, Coverage and Mobility Laws for Hierarchical Aerial Base Stations
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Aerial Base Stations (ABSs) have gained significant importance in the next generation of wireless networks for accommodating mobile ground users and flash crowds with high convenience and quality. However, to achieve an efficient ABS network, many factors pertaining to ABS flight, governing laws and information transmissions have to be studied. In this article, multi-drone communications are studied in three major aspects, survivability, coverage and mobility laws, which optimize the multi-tier ABS network to avoid issues related to inter-cell interference, deficient energy, frequent handovers, and lifetime. Moreover, this article discusses several optimization constraints along with the proposed solution for management of the hierarchical ABS network. In addition, the article includes simulation results of hierarchical ABS allocations for handling a set of users over a defined geographical area. Further, several open issues and challenges are presented to provide deep insights into the ABS network management and its utility framework.
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