A Brief Review on Routing in Wireless Sensor Networks

In the last few years the craze of the wireless sensor network (WSN) is increasing and it has become a latest field of research. Protocols used in ad-hoc networks cannot be used in sensor networks because the sensors are tiny in size, have limited battery power, less storage capacity. Hence new protocols are generated for sensor networks. One of the major challenges is to design an energy efficient routing strategy for WSN. In this paper, metric evaluation, designing issues of the sensor routing protocols are discussed. Routing in WSNs can be broadly sub divided in two categories: flat routing and clustering or hierarchical routing. In this paper, several routing schemes are discussed along with some energy aware cluster routing methods.