Enhanced Link Quality-based Routing Protocol for underwater networks

Abstract

One of the fundamental functions of any Underwater Acoustic Sensor Network (USANs) is routing. Due to long transmission delays, change in the position of nodes, bandwidth issues, and changes in frequency, designing routing protocols for UASNs presents several difficulties. Numerous UASNs routing protocols exist and were developed based on various factors such as link quality, hop count, and packet delivery probability. One of the key elements affecting how well routing functions in underwater communication is link quality which is measured using the physical characteristics of underwater. The paper's main contribution is designing an Enhanced Link Quality-based Routing Protocol(ELQRP) for underwater networks where cumulative packet delivery ratio(PDR) is being used to determine the next best hop for any node in a network. ELQRP chooses the link which has the highest cumulative PDR. Implementation of ELQRP is done using Matlab. © 2023 IEEE.