RO-RAW: Run-Time Restricted Access Window Optimization in IEEE 802.11ah Network with Extended Kalman Filter

Table 1

Summary of the main notations and abbreviations.

Notation	Description
	The total number of stations
	The number of RAW station groups
	The number of stations in th group
	The number of stations in th RAW slot
	The RAW slot number in a RAW
	Transmission collision probability
	The transmission probability in a random slot time
	The average packet length
	The number of busy slots
	The number of collision slots
	The estimated value of at time
	Kalman gain
	Variance of random variable
	Variance of random variable