RE3TP: Reliable and energy efficient event transmission protocol in event driven WSN

The energy efficiency is one of the important factors to prolong wireless sensor networks (WSNs) lifetime. One way to achieve the energy efficiency is by minimizing the energy dissipation during event capturing i.e. sensing an event and during event transmitting. This paper presents an energy efficient as well as reliable event transmission protocol (RE3TP) for event driven WSNs. RE3TP consist of two types of nodes, Sensor nodes for event detection and relay nodes for transmitting an event packet. Sensor nodes are using sleep scheduling mechanism to conserve the energy for continuously sensing the supervised environment and relay nodes are used only for packet transmission. The conventional dynamic multi-copy scheme is used with greedy approach for reliable and energy efficient data transmission.