Performance of an Energy Efficient Routing Design for Wireless Sensor Networks

In this paper, we propose an improved routing algorithm to prolong network lifetime for wireless sensor networks (WSNs). Moreover, to prolong the lifetime of the first node death (FND) in networks, we combine both load balancing shortest hop routing tree and turn off redundant node schemes (SHORTORN), and the weight and energy-aware, called energy-aware weight-based SHORTORN (EWSHORTORN). The proposed EWSHORTORN algorithm lets more nodes share the load of the leader and balances the opportunity of data relaying to all nodes. The proposed load balancing scheme allocates energy consumption load to be more uniformly among all nodes, thus the FND can be prolonged evidently. Simulation results show that the proposed EWSHORTORN outperforms the SHORT scheme with double lifetime of FND.