Energy-efficient distributed relay selection in wireless sensor network for Internet of Things

The growing Internet of Things (IoT) is increasing wireless sensor networks (WSNs) for different applications. Energy efficiency and reliability are key factors for multi-hop path source to sink. A relay node forwards other node's data to sink, therefore, it consumes more energy. When relay runs out of battery it may cause network failure in WSNs of IoT. A relay selection in multi-hop transmission can play an important role to increase the network lifetime. A stable, WSN is the fundamental requirement for IoT data gathering in multi-hop networking from source to sink. In this paper, an energy efficient distributed relay selection (EDRS) technique is proposed for multi-hop WSNs. The energy consumption is reduced by selecting a stable relay and power allocation for collaboration. In addition, the proposed EDRS selects a relay node with optimal power levels to prolong the network lifetime. The simulation results demonstrate, the EDRS reduces energy consumption and increases network lifetime.