Energy Efficient Routing Protocol Based On Spherical Layers And Clusters In Underwater Acoustic Sensor Networks

The energy efficiency problem in Underwater Acoustic Sensor Networks(UASNs)is one of the main problems in the field of UASNs in the moment.This dissertation proposed the Energy Efficient Routing Protocol Based on Spherical Layers and Clusters(EESLC).The main goal of the EESLC protocol is reduce the energy consumption of underwater sensor nodes in the network and extend the network lifetime.To achieve this goal,the EESLC protocol uses a spherical structure.In this protocol,the underwater sensing area is divided into a concentric spherical layer structure centered on the sink node,where the width of the layer decreases as the distance from the layer to the sink node decreases,and each cluster head node is communicating between clusters when transmitting data to adjacent inner cluster head nodes in turn.The structural characteristics of the spherical layer enable nodes to always transmit data toward the sink node,thereby shortening the transmission path between clusters.In each layer,the nodes set their clusters with their remaining energy and layer number as parameters to balance the energy of each node in the network.In this way,the network lifetime is shortened due to hot spots.In addition,through theoretical analysis,this dissertation proves that the use of spherical layer structure can optimize the transmission path between layers to achieve the effect of shortening the data packet transmission path.Finally,this dissertation verifies the performance of the proposed EESLC protocol through a simulation platform.The comparison results with related protocols show that this protocol shows excellent performance in terms of network lifetime,throughput,data transmission rate,network energy consumption and end-to-end delay.