Security mechanism adds authentication and encryption mechanisms to MAC frame to defense MAC layer security attacks.
安全机制通过增加MAC帧的认证和保密以防御MAC层的安全攻击。
After introducing some different MAC protocols in this thesis, and analyzing energy factors of MAC layer, such as overhearing, idle listening, collision conflict and excessive information of control.
本文在对不同类型MAC协议进行了介绍，并分析了MAC层的能耗原因，如网络串音、空闲侦听、碰撞冲突及控制信息过多。
The energy control mechanism is performed by the MAC layer and the routing layer, but the MAC layer is more direct and frequent in the energy control than the routing layer.
而传感器网络中能量的控制主要由MAC层和路由层完成，MAC层相对于路由层对能量的控制更为直接和频繁。
The media access control (MAC) protocol of mobile Ad Hoc networks (MANETs) is closely-related with its physics layer, most MAC protocols request the capability of carrier sense in physical layer.
无线自组网的介质访问控制(MAC)协议是与物理层密切相关的，大多数MAC协议都要求物理层具备载波感知能力。
NS was used to establish UWB network model and implement a MAC protocol combining the coding technology of the physical layer. It was compared with several traditional MAC protocols.
文中运用NS网络仿真软件搭建了完整的UWB网络环境，实现了一种融合物理层编码技术的MAC协议，并与几种传统的MAC协议进行了仿真分析比较。
The invention only learns and transmits MAC address in local network, to limit the number of MAC address, save MAC list resource of chain layer, and improve network property.
本发明使得区域网络内的MAC地址仅仅在其内部学习和传播，从而有效地限制了MAC地址的数量，节省了链路层设备的MAC表资源，避免因链路层网络的规模影响网络的性能。
This paper studies the several key issues of media access control (MAC) layer of EPON, including MAC control sub-layer and RS sub-layer.
本文主要对EPON的媒体接入控制(mac)层(包括MAC控制子层和RS子层)中的若干关键问题进行了深入的研究。
The address table of MAC is an important data structure in the Ethernet two-layer switch. When the switch exchanges the information, it must study and Find the MAC address with the MAC address table.
MAC地址表是以太网二层交换机中的一个重要数据结构，对MAC地址的学习和查找是实现以太网二层交换的必需功能。
The address table of MAC is an important data structure in the Ethernet two-layer switch. When the switch exchanges the information, it must study and Find the MAC address with the MAC address table.
MAC地址表是以太网二层交换机中的一个重要数据结构，对MAC地址的学习和查找是实现以太网二层交换的必需功能。
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