Browsing by Author "Raatikainen, Kimmo"
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- A Power-Aware Broadcasting AlgorithmPublication . Miranda, Hugo; Leggio, Simone; Rodrigues, Luís; Raatikainen, KimmoFlooding is an expensive but unavoidable operation in some application scenarios devised for Mobile Ad Hoc Networks (MANETs). In this paper, we present a novel algorithm to reduce the overhead imposed by flooding operations. The algorithm improves previous results by using a distributed function to elect the nodes that will provide the highest additional coverage to previous retransmissions. The algorithm does not require any signalling or imposes special requirements on the participating devices.
- A Stateless Neighbour-Aware Cooperative Caching Protocol for Ad-Hoc NetworksPublication . Miranda, Hugo; Leggio, Simone; Rodrigues, Luís; Raatikainen, KimmoReplication of data items among different nodes of a Mobile Ad-Hoc Network (MANET) is an efficient technique to increase data availability and improve access latency. This paper proposes a novel algorithm to distribute cached data items among nodes in a MANET. The algorithm combines a probabilistic approach with latency constraints such as the distance from both the source and the clients of the data item. In most scenarios, our approach allows any node to retrieve a data item from a nearby neighbour (often, just one hop away). The paper describes the algorithm and provides its performance evaluation for several different network configurations