Energy Allied Routing in Wireless Sensor Network

In the field of Wireless Sensor Networks (WSN) a lot of limitation is there for the sensory nodes where data transmission as well lifetime of network becomes a challenge. There are various types of routing mechanisms which are available for WSN such as location based, hierarchal, Quality of service parameter based etc. Also, Fermat point-based routing protocol methodology can be a considerable solution as it focuses on lifetime of sink-WSN. In this paper we have thoroughly discussed the need of WSN and how it differentiates from the traditional approach i.e., MANET and various application areas such as military applications, precision activities in agriculture, Forest Fire detection, Habitat monitoring, Weather forecasting etc. Importance of routing scheme is for delivery of packets. The major focus of this paper is on routing protocol which are based on communication in the network based on energy consideration.