Reliable and energy-efficient multi-hop LEACH-based clustering protocol for wireless sensor networks
Ouni, Sara Al-Sodairi, Ridha . 2018
Wireless sensor networks (WSNs) are attracting research attention because of their important appli-cations in critical environmental monitoring and target tracking in both civilian and military fields.The large-scale deployment of energy-constrained WSNs and the need for multi-hop data aggregationrequires efficient organization of network topology to simplify the routing task, balance the load, and pro-long the network lifetime. Clustering has proven to be an effective approach for organizing the networkinto a connected hierarchy. In this study, we analyze the effectiveness of low-energy adaptive clusteringhierarchy (LEACH) and LEACH-based protocols in extending the lifetime for energy-constrained WSNs.An improved LEACH clustering protocol called enhanced multi-hop LEACH is proposed to reduce andbalance energy consumption in order to allow increased packet delivery and network lifetime in WSNs.Additionally, this paper presents the weaknesses of the LEACH protocol. First, we introduce new rulesfor cluster-head selection and round time computing based on the remaining energy. Second, a multi-hop communication model is integrated in the WSN using two operating processes: leveling and genericmulti-hop routing.
