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Table 3 Parameters used in simulations

From: Data offloading in IoT environments: modeling, analysis, and verification

Parameter

Value(s)

World size

4500 × 3900 m

Simulation time per run

12 h

Radio interface

Speed: 250 kbps (2 Mbps)

Range: 20 m for cars, 100 m for busses

Message

Size: 500 kb–1 MB

Interval: 1 per min

TTL: 500 min

Buffer size

10 MB (maximum buffer size that a node is willing to allocate for message distribution)

Nodes

Busses: 8

Cars: 20

Pedestrians: 72

Total: 100

Node average speed

Busses: 10–35 km/h

Cars: 10–50 km/h

Pedestrians: 0–5 km/h

Mobility

City environment, real connectivity traces

Parameters for HSM, UBS

α = 0.6, ω = 50, and n = 10

Parameters for FAR

ϕ = 0.6 and ω = 50