Faiza Al-Salti, N. Alzeidi, Khaled Day, Bassel Arafeh and Abderezak Touzene
Department of Computer Science, Sultan Qaboos University, Oman
ABSTRACT
In this paper, we devise and evaluate a new Grid-Based Priority Routing (GBPR) protocol for Underwater
Wireless Sensor Networks (UWSNs). GBPR utilizes a 3D logical grid view of the monitored area to deliver
data packets to sink nodes. Particularly, data packets are forwarded on a cell-by-cell-basis using elected
sensor nodes called cell-heads. The unique feature in GBPR is the classification of the neighboring cells in
different priority levels according to their distances to the sink node. Cells closer to the sink are given
higher priority to be selected as the next hop. This mechanism helps in reducing the number of hops; thus,
reducing the energy consumption and end-to-end delay, and increasing the reliability. The protocol is
evaluated and compared against EMGGR and EEF protocols available in the literature. Simulation results
show that GBPR outperforms the other two protocols in terms of energy efficiency, average delay and
packet delivery ratio.
KEYWORDS
Underwater wireless sensor networks, UWSNs, routing protocol, location-based, grid, cell-head election&
void-handling algorithm.
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