The unmanned aerial vehicle communication networks (UAVCN) comprises of a collection of unmanned aerial vehicles (UAVs) to build a network that can be used for many applications. These nodes autonomously fly in free space in ad-hoc mode to carry out the mission. However, the UAVs face some challenging issues during collaboration and communication. These nodes have high speed, hence the communication links fail to route the traffic that affects the routing mechanism. Therefore, UAVCN communication affecting the quality of service and facing the performance issue. Power is another major problem to limit and optimize the use of power, the energy-efficient mechanism is needed. In this paper, an attempt is made to explore the issues of unmanned aerial vehicle communication networks: UAVCN characteristics, UAVCN design issues, UAVCN applications, routing protocols, quality of service, power issue and identify the future open research areas which could be considered for further research to explore the UAVCN technology.

无人机通信网络（UAVCN）包括一系列无人机，以构建可用于许多应用的网络。这些节点以临时模式在自由空间中自主飞行以执行任务。但是，无人机在协作和交流过程中面临一些挑战性问题。这些节点具有很高的速度，因此通信链路无法路由影响路由机制的流量。因此，UAVCN通信会影响服务质量并面临性能问题。功率是限制和优化功率使用的另一个主要问题，需要一种节能机制。在本文中，我们尝试探索无人飞行器通信网络的问题：UAVCN特性，UAVCN设计问题，UAVCN应用，