Abstract

Energy consumption is a major issue in WSN as sensor nodes are battery operated. This problem is also stated as “lifetime problem of WSN”. There are many ways to overcome from this lifetime problem. One such solution is advancements in routing protocols so that the energy consumption by sensor nodes (SNs) is reduced. This is the major research area for the researchers to make advancements in routing protocols. The major and basic protocol for all the other advanced protocols is LEACH (Low energy adaptive clustering hierarchy) based on clustering. In this paper with LEACH the other protocols like FAIR, SEP ACT, EEOC, PEGASIS are also discussed WHICH ARE HELPFUL to increase the energy efficiency of sensor nodes in WSN