Routing Protocols Based on Super Cluster Header in Wireless Sensor Network
In a variety of applications, wireless sensor networks have received more attention in recent years. Sensor nodes, however, have many limitations including limited battery power and communication range. In this network, data gathering and data fusion help to reduce energy consumption and redundant data. LEACH (Low Energy Adoptive Clustering Hierarchy) is the most representative protocol using data gathering and data fusion, but it has several problems including inefficient energy consumption by many cluster headers to the distant sink and a single-hop routing path. In this paper, we propose two routing protocols called Routing Protocol based on Super-Cluster Header (RPS) and Multi-hop Routing Protocol based on Super-Cluster Header (MRPS) in order to resolve the problems of LEACH. The key idea of our protocols is that only one node sends the combined data to the sink and every node uses multi-hop routing in order to gather data in the cluster. We evaluate performance of our protocols through simulations. Simulation results show that our protocols offer a much better performance than the legacy protocols in terms of energy cost, the network lifetime, and fairness of the energy consumption.
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