Each increase in QoS level results in additional processor and network overhead.

QoS级别增加会导致额外的处理器和网络开销。

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IMS specifies enablement of quality of Service within the IP network and takes advantage of th QoS mechanism to improve and guarantee the transmission quality.

IMS指定了IP网络内的服务质量增强功能，并利用QoS机制来提高和保证传输质量。

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For a mobile user, how to select the optimal paths to reach the destination in terms of the network QoS and road condition is an important part of mobile decisive problem.

移动用户如何根据网络的通信质量和道路情况选择一条到达目标的最优移动路径，是移动决策问题中的一个重要部分。

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And if you've ever wanted to seriously used a Wi-Fi network to make voice telephone calls using Voice Over Internet Protocol technology (VOIP), your network will need a feature called QOS or Quality Of Service.

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