这一层提供了一组通用函数供底层网络设备驱动程序使用，让它们可以对高层协议栈进行操作。
This layer provides a common set of functions to be used by lower-level network device drivers to allow them to operate with the higher-level protocol stack.
FSH在协议层操作，不提供限制网络资源的能力，这样，没有一个应用程序能垄断网络栈。
The FSH operates at the protocol layer and does not provide the ability to constrain network resources such that no one application can monopolize the network stack.
从逻辑上看，UNET低级库是一个建立在UDP之上的网络协议栈。它包括一个“网络”层和一个“运输”层。
Logically, the UNET low level library is a network protocol stack built on top of the UDP, containing a "network" layer and a "transport" layer.
论文提出了一个三层网络子系统结构：内核级协议无关层、内核级协议相关层和用户级协议栈。
We carry out a three layers network subsystem structure that is protocol independent layer in kernel, protocol dependent layer in kernel and user level protocol stack.
无线传感器网络协议栈由物理、数据链路、网络、传输和应用五层组成。
The protocol stack of wireless sensor networks is composed of physical level, logical link control level, network level, transport level and application levels.
本文选择了四层结构作为协议栈体系结构的雏形，即：物理层、数据链路层、网络层、应用层。
The thesis chooses the four-layers structure as the rudiment of our protocol stack system, which includes physical layer, data link layer, network layer and application layer.
联合优化协议栈中各层的跨层设计技术能够显著提高网络的性能。
Cross layer design technique which jointly optimize several layers of protocol stack could improve network performance significantly.
一个稳定高效的SIP协议栈适配层，是下一代网络核心业务平台的核心。
A stable and effective SIP stack adapter layer is the core component of next generation network service platform.
本文首先介绍了无线传感器网络的体系结构及其协议栈、分析比较了现有的MAC层和路由层协议，讨论了无线传感器网络的主要能量消耗和性能指标，以及无线传感器网络的空间相关特性。
On the other hand, the energy of the sensor node is limited and unrechargeable. It is an important significance of which exploits spatial correlation in WSN on the MAC and route protocol.
其次，它使加入跨层设计后的网络协议栈每个层仍具有高内聚、低耦合的特征，从而保持了网络协议栈良好的软件架构。
Secondly, it keeps the low coupling and high cohesion virtue of layers in protocol stack after adding cross-layer design, so as to keep the OSI layering architecture.
其次，它使加入跨层设计后的网络协议栈每个层仍具有高内聚、低耦合的特征，从而保持了网络协议栈良好的软件架构。
Secondly, it keeps the low coupling and high cohesion virtue of layers in protocol stack after adding cross-layer design, so as to keep the OSI layering architecture.
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