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| 标 题： |
Cacheability Analysis of HTTP traffic in an Operational LTE Network
运营型LTE网络中HTTP流量的缓存性分析 |
| 作 者： |
Buvaneswari A. Ramanan
Lawrence M. Drabeck
Mark Haner
Nachi Nithi
Thierry E. Klein
Chitra Sawkar |
| 关键词： |
Cacheability [缓存能力]
Revisit [重温]
Cache Hit [缓存命中]
LTE Network [LTE网络]
Content caching [内容缓存]
HTTP [HTTP]
Content type [内容类型]
Hosts [主机]
ENodeB [ENodeB]
SGW [SGW]
Data Analysis [数据分析]
User Plane [用户平面]
Traffic Statistics [交通统计数据] |
| 出版年： |
2013 |
| 会议名： |
12th Wireless Telecommunications Symposium (WTS 2013)
第12届无线通信研讨会（WTS 2013） |
| 届 次： |
12th |
| 摘 要： |
With the rapid increase of traffic on the web, content caching reduces user-perceived latency as well as the transmission of redundant traffic on the network. In this study, we analyze the gains of HTTP content caching at the location of SGW in an LTE Wireless network. High cache hit ratio can be achieved if the proxy server caches only those contents that are guaranteed of significant revisits. In this paper, we identify such contents for optimum proxy server performance. We compare the cacheability gains for different content types such as image, video, text etc, and also for popular websites. Our analysis shows that amongst all the contents, 'image' type have the highest revisit rate, which means caching them is beneficial. Amongst the popular websites compared, cacheable contents from 'Facebook' have the highest probability of revisits. We extend the analysis by varying the interval of caching and studying its effect on the cacheability. Based on these results, we provide guidelines for configuring the proxy server for high cacheability benefits.
随着网络流量的快速增长，内容缓存能够降低用户感知到的延迟，并减少网络中冗余数据的传输。在本研究中，我们分析了在LTE无线网络中SGW位置部署HTTP内容缓存所带来的效益。如果代理服务器仅缓存那些有较高重复访问率的内容，即可实现较高的缓存命中率。本文旨在识别出最优性能所需的此类内容。我们比较了图像、视频、文本等不同类型内容以及热门网站的缓存效率提升情况。分析结果表明，在所有内容类型中，“图像”类内容的重复访问率最高，因此对其进行缓存具有明显优势。在所比较的热门网站中，来自“Facebook”的内容拥有最高的再次访问概率。我们进一步通过调整缓存间隔来扩展分析，研究其对缓存效率的影响。基于这些结果，我们提供了配置代理服务器以获得更高缓存效率的指导建议。 |
| 中文内容为网络AI翻译，专业术语未必准确，仅供参考。 |
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