Non deterministic communication delay of Ethernet which can't satisfy the real time request of industrial control has become the main obstacle in application on filed device layer network.
以太网存在通信不确定性，不能满足实时性要求，成为应用于工业现场设备层网络的主要障碍。
The main purpose of lightweight communications is to provide lower network communication delay and higher communication throughput.
轻量级通信主要是为了提供更低的网络通信延时和更高的网络吞吐量。
The continuous time-stamp communication model and the wavelet technology were applied to evaluate running precision difference of clocks, in order to reduce the effect of network delay efficiently.
本研究的目的就是在异步通信网络环境中，采用连续的时间戳通信模型，并利用时钟精度差概念和小波除噪算法实现系统中各个计算机之间的自适应时钟同步。
The communication mechanism of NCS is emphatically researched. The information flowing procedure in NCS is analyzed, as well as the generation and components of network-induced time delay.
对NCS的通信机制进行重点研究，分析了信息的流动过程，时延的产生及构成。
The problem of minimum cost multicast tree satisfying bandwidth request and delay-constraint in communication network is a NP-complete problem. It is difficult to be solved by traditional methods.
通信网络时延受限且满足带宽要求的最小代价组播树问题是NP完全问题，传统方法难以求解，一般采用启发式方法求解。
The communication is opportunistic in delay-tolerant network, and the nodes spend limited time in sending data.
容迟网络的通信具有机会性，且传输时间受到严格限制。
The communication is opportunistic in delay-tolerant network, and the nodes spend limited time in sending data.
容迟网络的通信具有机会性，且传输时间受到严格限制。
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