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Table 1 Notation definitions

From: A modified cluster-head selection algorithm in wireless sensor networks based on LEACH

Symbol Meaning
p Election probability of cluster head
r Current round
G Set of nodes that did not become cluster heads in the last 1/p rounds
E res The residual energy of node
E init The initial energy of node
n The expected total rounds
A i,j The network address of router node or end node
Ai, j max, Ai, j min The max and min of Ai, j
w1, w2 The weight of residual energy and network address, 0 < w1, w2 < 1 and w1 + w2 = 1