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Mittwoch, 15 März 2017 15:50

Paper accepted at ICC 2017

'Viability of Wi-Fi Caches in an Era of HTTPS Prevalence' has been accepted at ICC2017-WT10 in Paris

The paper 'Viability of Wi-Fi Caches in an Era of HTTPS Prevalence' has been accepted at the Workshop 'Advanced Caching in Wireless Networks' at the ICC 2017 in Paris.

Authors: Christian Moldovan (University of Duisburg-Essen), Valentin Burger (University of Würzburg), Florian Metzger (University of Duisburg-Essen), Sebastian Surminski (University of Duisburg-Essen) and Tobias Hoßfeld (University of Duisburg-Essen).

Abstract: Caches are often employed to better manage the ever-growing amount of global Internet traffic. Particularly, reverse proxies are often used to free up congested peering links and reduce inter-domain traffic. In addition, caches place content close to the edge, leading to lower latency which can be beneficial for many applications. In an effort to bring content even closer to end devices, home routers and public access points are now in the spotlight as a novel location for caches. Compared to CDNs, a Wi-Fi router only offers scarce storage and processing capabilities, putting an increased emphasis on resource management. In addition, a large share of traffic is transmitted through secured connections preventing the use of forward caches and other middle boxes. This paper strives to analyze how effective caching can be in public Wi-Fi routers. For this purpose, we conducted a field study with caches at public Wi-Fi hotspots in a field study. In addition, we present a queueing model for caches that we use to perform a mean-value analysis. We compare results from both methods in a performance analysis. Our results provide insights into difficulties of caching systems that are caused by an increase in the ratio of secured connections in the Internet.

This work was partly funded by Deutsche Forschungsgemeinschaft (DFG) under grants HO 4770/1–2 (DFG Ökonet: Design and Performance Evaluation of New Mechanisms for the Future Internet — New Paradigms and Economic Aspects).

Von: Moldovan, Christian