Energy-efficient routing protocols for WSNs: A comparative analysis

Abstract

Cluster-based routing protocols are used to reduce the energy consumption of sensor nodes, which involves them in short-distance communication to cluster head than to sink which is located far away. Cluster head collects and aggregates data to decrease number of transmissions to sink. As cluster head performs multitask, energy is extensively used, which in turn leads to premature death. To avoid this, cluster head role is shifted among the member nodes in the cluster. A slight modification is to introduce mobile nodes to relay information from cluster heads to sink to reduce the energy consumption of the cluster heads. In this paper, comparative analysis of reactive protocols (LEACH and LEACH-C), single mobile node protocol (NDCM), and multiple mobile node-based hybrid protocol (HADMMN) is carried out. Use of multiple mobile nodes significantly improves the performance of the network.