Multipath Routing Scheme in Solar Powered Wireless Sensor Networks

Constant growth in the wireless sensor network (WSN) needs routing protocol which can cater for renewable energy sources as compared to conventionally used nonrenewable energy sources in sensor nodes. In this paper, adaptive topological knowledge (ATK) algorithm is used to periodically and locally determine the topological knowledge range (KR) of each solar-powered node, based on an estimated energy budget for the following period. Energy budget includes current energy, the predicted energy consumption and the energy expected from the solar cell. Multipath routing scheme (MRS) is used for route selection based on round-robin model. Thus energy optimization is attained during real-time route discovery and packet forwarding by reducing congestion in the network.