It elects a CH node by two different quality functions such as primary probability and subsidiary probability. Its primary probability function is similar to EADEEG and the subsidiary probability considers the node's degree in addition. It can solve the 'isolated points' unlike the EADEEG and ...
These two functions play important role in simulating the random node drift with water environment, and a and b can be regarded as the parameters of these two functions. Whether a node drifts is expressed as follows: rd(0, 1) < Pe (10) where Pe is used to control the probability of ...