Affiliations 

  • 1 School of Computing, Universiti Teknologi Malaysia (UTM), Skudai 81310, Johor, Malaysia. suhail.ashfaq@ue.edu.pk
  • 2 School of Computing, Universiti Teknologi Malaysia (UTM), Skudai 81310, Johor, Malaysia. knizam@utm.my
  • 3 Department of Computer Science, COMSATS University Islamabad, Islamabad 44000, Pakistan;. nadeemjavaidqau@gmail.com
  • 4 School of Computing, Universiti Teknologi Malaysia (UTM), Skudai 81310, Johor, Malaysia. niya.gharaei@gmail.com
  • 5 Department of Electronics and Communication Engineering, Kwangwoon University, Seoul 01897, Korea;. farruh.uzb@gmail.com
  • 6 Wah Campus, COMSATS University Islamabad, Wah Cantonment; 47040, Pakistan. khalilafzal@ciitwah.edu.pk
  • 7 School of Computing, Universiti Teknologi Malaysia (UTM), Skudai 81310, Johor, Malaysia. momikh@gmail.com
  • 8 School of Computing, Universiti Teknologi Malaysia (UTM), Skudai 81310, Johor, Malaysia. akram.mujahid@ue.edu.pk
Sensors (Basel), 2019 Jan 26;19(3).
PMID: 30691141 DOI: 10.3390/s19030510

Abstract

The key concerns to enhance the lifetime of IoT-enabled Underwater Wireless Sensor Networks (IoT-UWSNs) are energy-efficiency and reliable data delivery under constrained resource. Traditional transmission approaches increase the communication overhead, which results in congestion and affect the reliable data delivery. Currently, many routing protocols have been proposed for UWSNs to ensure reliable data delivery and to conserve the node's battery with minimum communication overhead (by avoiding void holes in the network). In this paper, adaptive energy-efficient routing protocols are proposed to tackle the aforementioned problems using the Shortest Path First (SPF) with least number of active nodes strategy. These novel protocols have been developed by integrating the prominent features of Forward Layered Multi-path Power Control One (FLMPC-One) routing protocol, which uses 2-hop neighbor information, Forward Layered Multi-path Power Control Two (FLMPC-Two) routing protocol, which uses 3-hop neighbor information and 'Dijkstra' algorithm (for shortest path selection). Different Packet Sizes (PSs) with different Data Rates (DRs) are also taken into consideration to check the dynamicity of the proposed protocols. The achieved outcomes clearly validate the proposed protocols, namely: Shortest Path First using 3-hop neighbors information (SPF-Three) and Breadth First Search with Shortest Path First using 3-hop neighbors information (BFS-SPF-Three). Simulation results show the effectiveness of the proposed protocols in terms of minimum Energy Consumption (EC) and Required Packet Error Rate (RPER) with a minimum number of active nodes at the cost of affordable delay.

* Title and MeSH Headings from MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.