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selfish node detection
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Abstract
In a mobile ad hoc network, the mobility and resource constraints of
mobile nodes may lead to network partitioning or performance
degradation. Several data replication techniques have been proposed to
minimize performance degradation. Most of them assume that all mobile
nodes collaborate fully in terms of sharing their memory space. In
reality, however, some nodes may selfishly decide only to cooperate
partially, or not at all, with other nodes. These selfish nodes could
then reduce the overall data accessibility in the network. In this
paper, we examine the impact of selfish nodes in a mobile ad hoc network
from the perspective of replica allocation. We term this selfish
replica allocation. In particular, we develop a selfish node detection
algorithm that considers partial selfishness and novel replica
allocation techniques to properly cope with selfish replica allocation.
The conducted simulations demonstrate the
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