Research Article

A Hybrid Opportunistic IoT Secure Routing Strategy Based on Node Intimacy and Trust Value

Table 1

The settings of simulation experiment parameters.

ParameterValue

Experimental mapHelsinki map
Experimental area size4.5 × 3.4 km (width × height)
Intra-area node movement modelMap-based shortest path movement model
Experimental simulation time12 h (43200 s)
Number of nodes36/66/96/126/156
Communication radius10 m
Transfer speed250 KB/s
Node moving speedThe first group: 0.5 ~ 1.5 m/s the second group: 2.7 ~ 13.9 m/s the third group: 0.5 ~ 1.5 m/s the fourth group: 7 ~ 10 m/s the fifth group: 7 ~ 10 m/s the sixth group: 7 ~ 10 m/s
Node cache sizePerson: 5 M tram: 50 M
Transfer methodPerson: Bluetooth interface tram: Bluetooth/high-speed interface
Message generation interval25~35 s
Message size500 kb–1 MB
Message life cycle5 h