Amarjit Kaur, Simarjeet Kaur
Abstract: Wireless sensor networks are used in many important areas like military, vibration monitoring health monitoring, and industries etc. Because the sensor nodes has low power, small size, low cost and self-organizing behavior in harsh environments become the WSNs attractive in wide variety of applications. The important issue in the design of WSNs is energy usage. There are many routing protocols like DEEC, DDEEC, EDEEC, TDEEC, BEENISH, heterogeneous routing, etc. that is used for energy efficiency. These protocols are used to increase the network lifetime of the wireless sensor networks and decrease the energy consumption of the nodes. In heterogeneity protocols clustering is used. Using clustering the whole sensing area is divided into groups. These groups are also known as clusters An Optimum clustering technique can low the energy consumption in WSN and increase the network lifetime. In WSN energy is main retainer during analyzing the routing protocols for WSN.
Keywords: Wireless sensor networks, network lifetime, residual energy, CH, energy efficient routing protocols