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首页> 外文期刊>International journal of web services research >Reducing User Perceived Latency with a Proactive Prefetching Middleware for Mobile SOA Access
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Reducing User Perceived Latency with a Proactive Prefetching Middleware for Mobile SOA Access

机译：通过用于移动SOA访问的主动预取中间件减少用户感知的延迟

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摘要

Network latency is one of the most critical factors for the usability of mobile SOA applications. This paper introduces prefetching and caching enhancements for an existing SOA framework for mobile applications to reduce the user perceived latency. Latency reduction is achieved by proactively sending data to the mobile device that could most likely be requested at a later time. This additional data is piggybacked onto responses to actual requests and injected into a client side cache, so that it can be used without an additional connection. The prefetching is done automatically using a sequence prediction algorithm. The benefit of prefetching and caching enhancements were evaluated for different network settings and a reduction of user perceived latency of up to 31% was found in a typical scenario. In contrast to other prefetching solutions, our piggybacking approach also allows to significantly increase battery lifetime of the mobile device.
机译：网络延迟是移动SOA应用程序可用性的最关键因素之一。本文介绍了针对移动应用程序的现有SOA框架的预取和缓存增强功能，以减少用户感知的延迟。通过主动向移动设备发送数据（可能在以后的某个时间很可能会请求）来减少延迟。这些额外的数据被附加到对实际请求的响应上，并注入到客户端缓存中，因此无需额外的连接就可以使用它。使用序列预测算法自动完成预取。针对不同的网络设置评估了预取和缓存增强的好处，在典型情况下，用户感知到的等待时间减少了多达31％。与其他预取解决方案相比，我们的搭载方法还可以显着增加移动设备的电池寿命。

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