Multistage Dynamic Packet Access Mechanism of Internet of Things

Table 1

Parameters of the GRAP modeling.

Parameters	Descriptions
k	The number of command groups
	The ψth command group
	The set of command request types
	The weight function of command groups
	The number of service request commands
	The ith service request command
	The request type of the most urgent subcommand in
	The weight value of
	The number of effective resources
	The jth resource
	The load metrics function consumed by the command in resource access
	The load value consumed by to acquire all the resources it needs
	The resource confinement for
	The resource confinement for
	Objective function of at the current load confinement
Q	System total resource confinement
	The load value of acquiring resource
F	Objective function of GRAP