This research targets the robust routing protocols in airborne networks (ANs). Particularly, we target the AN which is equipped with the latest antenna technology, called Multi-Beam Directional Antenna (MBDA) [1]. MBDA allows the simultaneously packet delivery in multiple directions without RF interference between directions/beams. We have found that MBDAs can actually bring new opportunities to enhance a popularly used AN routing scheme, i.e., optimized link state routing protocol (OLSR). In particular, MBDAs enable OLSR to better achieve low probability of detection (LPD), a critical requirement in many military applications with adversary nodes nearby which try to eavesdrop the signals. Therefore, we propose a multi-path enhanced OLSR, which is able to exploit the advantages of multi-beam transmissions and select the proper multi-point relays (MPRs) to easily reach all nodes by using only a small number of message broadcasts. An innovative method based on social network concept is used for the selection of MPRs in multi-beam OLSR. Finally, we have conducted the simulations and showed that the enhanced OLSR is suitable for mobile and dense airborne networks with LPD requirements.

这项研究的目标是机载网络（AN）中的鲁棒路由协议。特别是，我们的目标是配备有最新天线技术的AN，称为多波束定向天线（MBDA）[1]。MBDA允许同时在多个方向上传送数据包，而在方向/波束之间没有RF干扰。我们发现，MBDA实际上可以带来新的机会来增强常用的AN路由方案，即优化的链路状态路由协议（OLSR）。尤其是，MBDA使OLSR能够更好地实现低检测概率（LPD），这在许多军事应用中都非常关键，这些应用中附近都有试图窃听信号的对手节点。因此，我们提出了一种多路径增强型OLSR，它能够利用多波束传输的优势，并选择适当的多点中继（MPR），从而仅使用少量消息广播即可轻松到达所有节点。一种基于社交网络概念的创新方法被用于多波束OLSR中的MPR选择。最后，我们进行了仿真，结果表明，增强型OLSR适用于具有LPD要求的移动和密集机载网络。