Adaptive Fuzzy-Based Energy and Delay-Aware Routing Protocol for a Heterogeneous Sensor Network

Table 1

Summary of notations.

Symbol	Description
	Number of sensor nodes in the network
A	Local actor node
	Residual energy of a node i
	Available (free) buffer of a node i
	Quality of a link from node j to node i
	Distance from node j to node i
	Cost of the path to node u
	Predecessor of node
	Fuzzy output value (the routing metric value)
	Membership value of input variable X