Caching in Mobile Environments: A New Analysis and the Mobile-Cache System

TitleCaching in Mobile Environments: A New Analysis and the Mobile-Cache System
Publication TypeConference Papers
Year of Publication2007
AuthorsFrangiadakis N, Roussopoulos N
Conference NameIEEE 18th International Symposium on Personal, Indoor and Mobile Radio Communications, 2007. PIMRC 2007
Date Published2007/09/03/7
ISBN Number978-1-4244-1144-3
KeywordsBandwidth, Broadcasting, cache storage, Cities and towns, FCC, hybrid push-pull solution, information dissemination, Intelligent networks, Land mobile radio, mobile communication, Mobile computing, mobile environment, mobile radio, mobile-cache system, multiple query answering, pull-push bandwidth ratio, Query processing, Road safety, road vehicles, ubiquitous wireless network, Vehicle safety

In the near future, we will be surrounded by ubiquitous wireless networks and so information dissemination for mobile users is a key issue. Hybrid push-pull constitutes a very effective and scalable solution. Our contribution is twofold. First we provide a new analysis that takes into account the user mobility. We argue that in a highly mobile setting, analysis and optimization goals discussed in past papers become irrelevant, since the most important aspect of the system is not delay, but rather the ability to answer as many queries as possible. As we show, the optimal pull-push bandwidth ratio depends on the mobility patterns of the users. Second, we use our findings to build Mobile-Cache, a system that can efficiently answer multiple queries over a wireless environment.