Fig 1.
An example of IoTs.
Fig 2.
The IoT architecture.
Fig 3.
RPL DODAG, Sub-DODAG, and RPL instances.
Fig 4.
The non-storing and storing modes of RPL.
Fig 5.
Types of Sybil attack.
Fig 6.
Sybil attack in RPL.
Fig 7.
Sybil attack in RPL.
Fig 8.
A Sybil attack scenario in smart healthcare domain.
Table 1.
Summary of nomenclature.
Fig 9.
Trust computation architecture.
Table 2.
State-of-the-art comparison.
Fig 10.
Block diagram of proposed methodology.
Fig 11.
The proposed THC-RPL architecture.
Fig 12.
Sybil attack in RPL.
Table 3.
Nodes’ rating based on trust values.
Table 4.
Simulation parameters.
Fig 13.
Number of attacks detected.
Fig 14.
Percentage of packet loss ratio.
Fig 15.
Energy consumption of nodes.
Fig 16.
Energy consumption of network.
Fig 17.
Computation cost.
Fig 18.
Communication Cost.
Fig 19.
Storage cost.