Cross-Layer Interception Caching for MANETs

In this work we study the interception of the requests performed by the mobile nodes in a wireless network. This interception can be achieved because a local cache is implemented in each wireless device. In that way, the nodes can serve the documents instead of forwarding the requests to the data servers. In our proposal, the interception is enhanced so it is also implemented when the mobile nodes create the route to the data servers. Using cross-layer information, the routing algorithm can discover the location of the documents disseminated across the network. By means of simulations, we evaluate the performance of the proposed interception mechanism. We study the effect of the network load, the expiration time of the documents, the requests pattern and the cache size on these cache mechanisms. Under all the assumptions the proposed scheme reduces the delay, the network traffic and the amount of timeouts when the servers are not reachable.

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