定向通信 meaning in Chinese

beam communication
directional communication

An adaptive beamforming csma / ca ( abf - csma / ca ) protocol is proposed to support the application of smart antennas and provide higher channel utilization . theoretical analysis result of channel utilization of abf - csma / ca protocol is presented
提出了支持智能天线应用，并利用其定向通信能力提高网络性能的多址接入协议? ?自适应波束形成csma ca协议( abf - csma ca ) 。
In this article , we present a technical overview of the hardware , software , architecture , and configuration implemented for the upgrade , with an emphasis on the network deployment topology we used , and an explanation of how we redirected traffic and mail after the upgrade
在这篇文章中，我们提供了为该升级所实现的硬件、软件、架构和配置技术的概述，其中强调了我们使用的网络部署拓扑（ topology ）以及对于升级后如何重新定向通信和邮件的解释。