Extending homogeneous WSN lifetime in dynamic environments using the clustering model

Abstract

To extend the longevity of a homogeneous WSN, the key is to avoid nodes deplete energy before the others. Accordingly, this chapter proposes a new clustering model for WSN used in dynamic environments. In each transmission round, the remaining energy of sensor nodes are fairly even with some fluctuations. That is, as a consequence of the proposed method, the variance among remaining energy is quite low, which implies that the sensor nodes shared the burden of relaying messages and, hence, elongated the overall network life. The main factors that are used in our proposed method for choosing a CH are the distance between the CH and BS, the remaining battery power, and the expected consumed energy.