Research In Motion
In this paper, the authors introduced a gateway based energy efficient multi hop routing protocol for Wireless Sensor Networks (WSNs) which utilizes minimum energy. In this paper, base station is located out of the sensing field and numbers of gateway nodes are deployed at the edge of sensing field. These gateway nodes are rechargeable therefore, it reduces cost. It also reduces traffic problem and reduce distance for reliable transmission of data. Simulation results shows that their proposed gateway based protocol is better in terms of network lifetime than traditional protocol like SEP.