Wireless Sensor Networks Lifetime Extension Based on a New Hybrid Hierarchical Routing Mechanism

Abstract

Abstract. Streamline energy consumption in Wireless Sensor Network (WSN) is and stills a topical problem in which several investigations have undertaken. The aim is to develop mechanisms such those based on routing protocols, for prolonging the network lifetime leading to improve its robustness and fluidity of transmissions, and then ensure an overall stable operation. In this paper, we present a robust and hybrid hierarchical multi-hop routing protocol wherein a dynamic clustering mechanism is implemented for optimal clusters construction. The approach combines successfully heterogonous information in terms of residual energy and signal strength of nodes and allows a multipath search by optimizing end-to-end delay and energy consumption. The effectiveness of the proposed approach is illustrated in simulations. For this purpose, a comparative study with LEACH protocol has been carried out for several networks with different densities.