DiTON: Distributed transactions in opportunistic networks

The mobility of nodes leads to dynamic changes in topology structure, which makes the traditional routing algorithms of a wireless network difficult to apply to the opportunistic network. In view of the problems existing in the process of information forwarding, this paper proposed a routing algorithm based on the cosine similarity of data packets between nodes (cosSim). The cosine distance, an algorithm for calculating the similarity between text data, is used to calculate the cosine similarity of data packets between nodes. The data packet set of nodes are expressed in the form of vectors, thereby facilitating the calculation of the similarity between the nodes. Through the definition of the upper and lower thresholds, the similarity between the nodes is filtered according to certain rules, and finally obtains a plurality of relatively reliable transmission paths. Simulation experiments show that compared with the traditional opportunistic network routing algorithm, such as the Spray and Wait (S&W) algorithm and Epidemic algorithm, the cosSim algorithm has a better transmission effect, which can not only improve the delivery ratio, but also reduce the network transmission delay and decline the routing overhead.

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An Opportunistic Network Routing Algorithm Based on Cosine Similarity of Data Packets between Nodes

Lin

Chen

et al. 2018

Algorithms

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DiTON: Distributed transactions in opportunistic networks

Cited by 1 publication

References 7 publications

An Opportunistic Network Routing Algorithm Based on Cosine Similarity of Data Packets between Nodes

An Opportunistic Network Routing Algorithm Based on Cosine Similarity of Data Packets between Nodes

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