Proposal and evaluation of an application level caching scheme for ad hoc networks

  • Authors:

  • F. J. González-Cañete;E. Casilari;A. Triviño-Cabrera

  • Affiliations:

  • University of Málaga, Málaga, Spain;University of Málaga, Málaga, Spain;University of Málaga, Málaga, Spain

  • Venue:
  • Proceedings of the 2009 International Conference on Wireless Communications and Mobile Computing: Connecting the World Wirelessly
  • Year:
  • 2009

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Abstract

In this paper, we describe a caching scheme for ad hoc networks. In this proposal the wireless nodes implement a local cache so that consecutive requests to the same document can be served directly by their own local cache instead of accessing the remote server. The nodes can also intercept the forwarding requests and serve the documents requested directly using their local cache. On the other hand the nodes learn where the documents are located using the information of the request and response messages that they forward. Using this information the nodes can redirect the requests to other nodes that are known to have the document requested and that are closer than the original destination of the request. By means of simulations we demonstrate that these proposals reduce the latency perceived by the nodes.