Title
An Efficient Data-Gathering Routing Protocol for Underwater Wireless Sensor Networks.
Abstract
Most applications of underwater wireless sensor networks (UWSNs) demand reliable data delivery over a longer period in an efficient and timely manner. However, the harsh and unpredictable underwater environment makes routing more challenging as compared to terrestrial WSNs. Most of the existing schemes deploy mobile sensors or a mobile sink (MS) to maximize data gathering. However, the relatively high deployment cost prevents their usage in most applications. Thus, this paper presents an autonomous underwater vehicle (AUV)-aided efficient data-gathering (AEDG) routing protocol for reliable data delivery in UWSNs. To prolong the network lifetime, AEDG employs an AUV for data collection from gateways and uses a shortest path tree (SPT) algorithm while associating sensor nodes with the gateways. The AEDG protocol also limits the number of associated nodes with the gateway nodes to minimize the network energy consumption and to prevent the gateways from overloading. Moreover, gateways are rotated with the passage of time to balance the energy consumption of the network. To prevent data loss, AEDG allows dynamic data collection at the AUV depending on the limited number of member nodes that are associated with each gateway. We also develop a sub-optimal elliptical trajectory of AUV by using a connected dominating set (CDS) to further facilitate network throughput maximization. The performance of the AEDG is validated via simulations, which demonstrate the effectiveness of AEDG in comparison to two existing UWSN routing protocols in terms of the selected performance metrics.
Year
DOI
Venue
2015
10.3390/s151129149
SENSORS
Keywords
Field
DocType
underwater wireless sensor networks,routing protocol,mobile sink,autonomous underwater vehicle,lifetime
Data loss,Computer network,Dynamic data,Default gateway,Connected dominating set,Engineering,Throughput,Shortest-path tree,Energy consumption,Routing protocol
Journal
Volume
Issue
ISSN
15
11.0
1424-8220
Citations 
PageRank 
References 
19
0.79
12
Authors
8
Name
Order
Citations
PageRank
Javaid, N.1523.76
Naveed Ilyas2353.05
A. Ahmad31108.39
Nabil Alrajeh4392.02
U. Qasim548959.16
zahoor ali khan6432.76
Tayyaba Liaqat7211.52
Majid Iqbal Khan89511.44