Distributed contextual information storage using content-centric hash tables

Authors:
Ignacio Nieto;Juan A. Botía;Pedro M. Ruiz;Antonio F. Gómez-Skarmeta
Affiliations:
Departamento de Ingeniería de la Información y las Comunicaciones, Universidad de Murcia, Spain;Departamento de Ingeniería de la Información y las Comunicaciones, Universidad de Murcia, Spain;Departamento de Ingeniería de la Información y las Comunicaciones, Universidad de Murcia, Spain;Departamento de Ingeniería de la Información y las Comunicaciones, Universidad de Murcia, Spain
Venue:
EUC'05 Proceedings of the 2005 international conference on Embedded and Ubiquitous Computing
Year:
2005

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Abstract

We analyze the problem of storing contextual information across a set of distributed heterogeneous mobile devices. These devices form a Mobile Ad Hoc Network (MANET) interconnected to Internet, in which partitions may eventually happen due to mobility. We present a new mechanism called Contextual Hash Table (CHT), which uses the semantic of the contextual information to select which nodes will store that information. Unlike previous general-purpose data replication algoritms, CHT manages to store information in the area of the network in which that information is most likely needed by neighboring nodes.