如今，將基地台（BS）安裝到無人駕駛飛行器（UAV）上已成為構建新一代無線通信網絡的新維度。例如，當蜂窩網絡的基礎設施由於一些災難性的災難而被破壞時，動態構建UAV-BS網絡可以提供一些即時和緊急的通信服務。在本文中，我們的目標是在一些鏈路質量約束下使用最少數量的UAV-BS（UBS）部署自組織的無人機輔助設備到設備（D2D）通信網絡。具體而言，連續的UBS部署算法旨在保證UBS和地面終端之間以及UBS和中央控制器之間鏈路的信號質量。通過仿真結果，有趣的是，如何部署適當數量的UBS而不是構建高度連接的UBS網絡是保證UBS輔助D2D網絡的更高頻譜效率的關鍵。

Nowadays, mounting a base-station (BS) onto an unmanned aerial vehicle (UAV) has become a new dimension for constructing the new generation of wireless communication networks. For example, dynamically constructing a UAV-BS network can provide some instantaneous and emergent communication services when the infrastructure of the cellular network is destroyed owing to some devastating disasters. In this paper, we aim to deploy a self-organized UAV-assisted device-to-device (D2D) communication network using a minimum number of UAV-BSs (UBSs) under some link quality constraints. Specifically, a sequential UBS deploying algorithm is designed to guarantee the signal quality for the links between the UBSs and ground terminals, and those between UBSs and central controller. Via the simulation results, it is interesting to find that how to deploy a proper number of UBSs rather than constructing a highly connected UBS network is the key to guarantee a higher spectrum efficiency for the UBS-assisted D2D networks.

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