An efficient energy data gathering based on grid-chain for wireless sensor networks

Energy efficiency and network life time prolonging are the important issues for data gathering in wireless sensor network (WSN). In this paper, we propose an energy efficient grid-chain based data gathering (EEGDG) method, which can effectively improve the above two problems based on the chain by combining the grid architecture with clustering. The proposed EEGDG divides the sensing area into several sub-areas, and uses the concept of cluster to choose one node in each area for sensing data and data gathering. Thus, to reduce the transmission energy the chain distance is minimized to improve the disadvantages of chain hop and prolonging the network life time. Simulation results show that the proposed EEGDG can prolong the network life time and reduce the node energy consumption to a large degree.