An unmanned aerial vehicle ad hoc network (UAANET) is an information sensing, analyzing, and transmitting network formed by multiple coordinated and collaborating UAVs. It is an emerging networking technology with a broad market prospect, but faces the problems of high dynamic topology and lack of trust. To address these issues, this article proposes a blockchain-em-powered trusted networking framework for UAANET, as well as the corresponding network architecture, protocol stack, key control signaling, and algorithms. To be more specific, blockchain is designed as a layer of distributed peer-to-peer security running on top of the physical UAANET. Three types of control signaling are designed, namely HELLO packet, topology control packet, and consensus packet. A max-min stable routing algorithm with three-dimensional link duration and a multipoint-relay-driven delegated Byzantine fault tolerance consensus mechanism are proposed for trusted networking of UAANET. The involved technical background and challenges are also detailed. These works together provide good references for scale deployment of UAANET in the near future.

中文翻译：

---

B5G时代的无人飞行器增强区块链可信网络

无人机自组织网络（UAANET）是由多个协同协作的无人机组成的信息感测，分析和传输网络。它是一种新兴的网络技术，具有广阔的市场前景，但面临着高动态拓扑和缺乏信任的问题。为了解决这些问题，本文提出了一种用于UAANET的由区块链支持的可信网络框架，以及相应的网络体系结构，协议栈，密钥控制信令和算法。更具体地说，区块链被设计为在物理UAANET之上运行的分布式对等安全层。设计了三种类型的控制信令，即HELLO数据包，拓扑控制数据包和共识数据包。针对UAANET的可信网络，提出了具有三维链接持续时间的最大最小稳定路由算法和多点中继驱动的委托拜占庭容错共识机制。还详细介绍了所涉及的技术背景和挑战。这些工作共同为在不久的将来大规模部署UAANET提供了很好的参考。