A Review of Malicious Node Detection Techniques and Energy Efficiency Conservation Methods in Wireless Sensor Network

The data transfer in Wireless Sensor Network is more prone to various kinds of attacks, as the nodes of the network are present in open, unprotected and hostile environment. It is more challenging to transfer data in such environment by preserving the security and lifetime of the network. The objective of the wireless sensor network is information gathering, monitoring and reporting; hence it is much necessary for the wireless sensor network to have a secured space for authenticated data transfer An efficient energy management also plays a vital role in determining the lifetime of a wireless sensor network. In general, the wireless sensor network is powered by a battery and it is tough to recharge. Therefore, extending the lifetime of sensors to enhance the network's performance is a major challenge in wireless sensor network. This paper aims to review various existing techniques used to find the malicious nodes in a wireless sensor network, along with the causes of energy loss and its conservation schemes.