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The tyranny of distance prevails: HTTP protocol latency and returns to fast fibre internet access network deployment in remote economies

机译：距离的暴政盛行：HTTp协议延迟并返回到偏远经济体中的快速光纤互联网接入网络部署

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As public policies seek to advance deployment of enhanced broadband infrastructure as a means of acquiring economic advantage, the issue has arisen of the extent that additional economic performance accrues from increases in headline bandwidth speed in locations that are physically remote from the infrastructure hosting time-critical information services. For time-dependent applications, latency (the time delay in accessing data across a network) is correlated with the effective bandwidth (the actual speed of access), and thus impacts upon the economic performance of the application to the user. We extrapolated data for interactive web-based applications from Belshe (2010), where latency was found to substantially reduce the effective bandwidth available to the user of a typical web-based application, to estimate the effective bandwidth over a range of headline bandwidths and latencies typical of web-based transacting patterns in New Zealand. We find that the decreasing returns on effective bandwidth as headline bandwidth increases are further exacerbated by the higher levels of latency experienced as a consequence of New Zealand's distance from the bulk of the global infrastructure supporting web-based applications.The benefits of enhancing headline bandwidth through new forms of faster infrastructure were substantially reduced by the impact of the latencies typically experienced by New Zealand users accessing remote web based applications, and thus the economic benefits expected from investment in infrastructure in accessing enhancing those applications most impacting economic performance is likely to have been exaggerated; providing an insight into a constraint upon cloud computing and other web-enabled information systems.
机译：由于公共政策寻求通过预先部署增强型宽带基础设施来获取经济优势，因此出现了这样的问题：在物理上远离托管时间紧迫的基础设施的位置，总体带宽速度的提高会带来额外的经济绩效信息服务。对于与时间有关的应用程序，等待时间（通过网络访问数据的时间延迟）与有效带宽（实际访问速度）相关，因此会影响应用程序对用户的经济性能。我们从Belshe（2010）推断了基于交互式Web应用程序的数据，发现延迟显着降低了典型Web应用程序用户可使用的有效带宽，从而估算了一系列标题带宽和等待时间上的有效带宽。新西兰典型的基于Web的交易方式。我们发现，由于新西兰与支持Web应用程序的大多数全球基础设施的距离越来越远，因此随着标题带宽的增加，有效带宽收益的下降进一步加剧了延迟水平的提高。新西兰用户访问基于远程Web的应用程序通常会遇到的延迟的影响，大大减少了新形式的更快的基础架构，因此，在基础架构方面的投资有望获得最大的经济收益，因为在访问基础架构方面的投资会增强那些对经济绩效影响最大的应用程序夸张的;提供对云计算和其他基于Web的信息系统的约束的见解。

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    Obren Mark; Howell Bronwyn;

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  • 年度 2011
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