A Data Forwarding Approach for Fire-Rescue Scenario with Multi-Type Mobile Nodes

Table 1

Description of main notations.

Parameter	Description
	Communication range of each node
	Proportion of SRNs in data holders
	Proportion of LRNs in data holders
	Proportion of FNs in data holders
	Movement speed of SRNs
	Movement speed of FNs
	Movement speed of RNs
	Residence period of an SRN at each time slot
	Residence period of an LRN after each bounce
	Residence period of an FN at each time slot
	Explosion range
	Maximum bounce range
	Size of each data packet
	Forwarding deadline of each data packet
	Number of forwarded copies at each time slot
	Coordinate of at the -th time slot
	Position alteration between and at the -th time slot
	Position stability of at the -th time slot
	Delivery ratio with SRNs at the -th time slot
	Delivery ratio with LRNs at the -th time slot
	Delivery ratio with FNs at the -th time slot
	Delivery ratio with SRNs, LRNs and FNs at the -th time slot