Similarity Degree-based Mobile Pattern AwareRouting in DTNs
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Graphical Abstract
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Abstract
Taking mobile pattern into consideration
can bene¯t routing performance in Delay tolerant networks
(DTN). Based on common sense, the more similar the mo-
bile patterns of nodes are, the more stable their relative
positions are resulting in a connection with a longer du-
ration. In this paper, a scheme named Similarity degree
based Mobile pattern aware routing (SD-MPAR) is pro-
posed. A comprehensive metric called similarity degree is
applied to scale the degree of similarity between the mobile
pattern of nodes which includes deviation of the sender's
speed direction from that of the destination, and distance
from the sender to the destination. Similarity degree is
also a key factor to decide the next hop. A message is
forwarded to the next hop node with the largest similarity
degree. Through theoretical analysis and simulation, SD-
MPAR shows the advantages deliver ratio, overhead, de-
liver latency and average number of hops over other rout-
ing schemes including epidemic and distance-based rout-
ing.
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