Node Factor based Hybrid Routing algorithm for Mobile Opportunistic Network
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Abstract
Conventional routing algorithms for wireless networks are difficult to apply to mobile opportunistic networks because of the interconnected network topology induced by node mobility. The mobile opportunistic network is characterized by sporadic connectivity, unavailability of end-to-end connection among the source and destination, and other characteristics. Proposed hybrid routing scheme is focused on the computation of encounter frequency between the nodes, in the task of information routing. The number of frequency meetings with other nodes, including the destination, is used to calculate the node factor. The frequency at which each node meets all other nodes defines a node's mobility pattern. Higher frequency meetings result in faster network area coverage due to increased node movement. As a result, they have a better chance of reaching even more nodes in the opportunistic network, improving the distribution ratio. Activeness of each network node is also provided by higher frequency meetings. The evaluated metric quantifies the significance of a carrier node in transporting a message to its destination. The proposed scheme has a higher delivery ratio, uses an average hop count, has a lower delivery delay.
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