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There is growing interest in investigating how the 5G capabilities can beextended to the critical communications vertical, in an expedited time scale.This paper provides a comprehensive cost analysis of a drone-based 5Gdeployment solution for emergency services. The proposed deployment usesexisting 4G and 5G ground small cells and the fronthaul, backhaul network. Thecost analysis develops an analytical approach to minimize the Total Cost ofOwnership (TCO), where the key parameters of drone unit cost, number of dronesper link, and link capacity are jointly optimized. Our numerical analyses lookat the TCO sensitivity to the above parameters to find sweet spots fordeployment in different parameter combinations. The 3GPP centralization optionsare also investigated in terms of the TCO, and it is observed thatcentralization split points at higher layers benefit from lower TCO in thisdeployment model.

Cost Analysis for Drone based 5G eMBB Provision to Emergency Services