Link-Quality-Based Energy-Efficient Routing Protocol for WSN in IoT

Wireless sensor networks (WSNs) play a major role in increasing the pervasiveness of Internet of Thing (IoT) with smart sensors for Consumer electronics, which are low cost and easy to install. In WSN, data is collected from sensors and transmitted to the sink for further operation which is used by IoT applications. However, resource restrictions on sensors and sensitivity of radio links in these networks causes serious routing issues and affects application performance. Routing protocols are designed to provide reliable route and effective communication between sensors while preserving energy efficiency. Numerous routing solutions that have been suggested in this context are associated with significant energy consumption, latency, and poor packet delivery ratios. Considering these problems, this work introduces the connection-Quality based Energy-Efficient routing (LQEER) protocol, which increases connection dependability through link quality estimation. Additionally, LQEER uses energy and link information in planning routes and a cost to select most appropriate for nodes for packet transmission which ultimately reduce packet loss. As a result, it improves packet delivery ratio and reduces delay. The result obtained from simulation show that LQEER gains superior performance in terms of packet delivery ratio, energy consumption, and end-to-end delay against state-of-the-art protocols.