NDLI: A cooperative spatial-aware cache for mobile environments

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A cooperative spatial-aware cache for mobile environments

Content Provider	ACM Digital Library
Author	Martínez, Manuel Rodríguez Maymí, Fernando J. Rolke, Wolfgang
Abstract	In many scenarios, particularly in military and emergency response operations, mobile nodes that are in close proximity to each other exhibit a high degree of data affinity. For example, all soldiers in the same region, regardless of their specialty, will want to know all nearby threats, as well as all friendly assets. Since relaying queries to a distant server is costly in terms of bandwidth and battery power, it would be ideal to use local resources that are only a hop away. In this paper we propose a shared spatial cache that can be thought of as residing in a region rather than in any given node. Each node that participates in the cache holds an expendable part of the data, so that the loss of any node or small group of nodes can be tolerated with little or no degradation of service. We describe the analytical models that verify our claims and show the results of extensive simulations that validate our models under simulated but realistic conditions.
Starting Page	65
Ending Page	72
Page Count	8
File Format	PDF
ISBN	9781450301510
DOI	10.1145/1850822.1850834
Language	English
Publisher	Association for Computing Machinery (ACM)
Publisher Date	2010-06-06
Publisher Place	New York
Access Restriction	Subscribed
Subject Keyword	Mobile databases Shared cache Spatial databases
Content Type	Text
Resource Type	Article

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
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