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Title An Improved Link-Quality Based Energy-Efficient Routing for Wireless Sensor Network-based Internet of Things

Author(s) Misbah Shahid

Abstract The Internet of Things (IoT) has gained implausible prominence in today's era due to its wide range of applications in various fields such as smart cities, transportation, home automation, and smart healthcare. In such IoT-based systems, wireless sensor networks (WSNs) play a major role. WSNs consist of autonomous sensor-equipped intelligent devices. These devices work together to sense and gather data required by IoT applications. In WSN-based IoT, power consumption is a challenging issue in extending network lifetime. Due to these issues, IoT applications suffer from power loss, delay, and shorter network lifetime. Existing routing protocols designed to address these issues are lacking in efficient route selection, reliable data transmission, and maximizing packet delivery ratio. In designing energy-efficient routing protocol for WSNs, optimal route selection with minimum energy depletes has become a matter of concern. This research proposes a novel routing scheme for WSN-based IoT. It helps to achieve better application performance by reducing delay and energy depletion and improving the packet delivery ratio. The proposed protocol is named as Link-Quality based Energy-Efficient routing (LQEER) for WSN-based IoT. LQEER is composed of three major steps. The first step is the network setup, where information is distributed among the nodes in the network field. The distance information of first-hop neighbors is calculated and stored in the routing table. The next step is link-quality estimation, where a standard link quality estimator is used to ensure the reliability of links between nodes before transmitting data. The third step is packet routing with energy balancing, where all the information of neighboring nodes stored in routing is then used in planning routes and data forwarding. LQEER is compared with a routing based on tree and geographic (RTG) and energy-efficient optimal multi-path routing (EOMR) protocol. NS2 is used for evaluating the LQEER protocol. Experimental results show that LQEER reduces energy consumption by 30% and 25% compared to EOMR and RTG. LQEER improves packet delivery ratio by 25% and 21% over EOMR and RTG respectively. Moreover, LQEER also minimizes end-to-end delay and gains improved network lifetime as compared to EOMR and RTG protocols.

Type Thesis/Dissertation MS

Faculty Engineering and Computer Science

Department Computer Science

Language English

Publication Date 2023-08-30

Subject Computer Science

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