Void-hole aware and reliable data forwarding strategy for underwater wireless sensor networks

Omar Adil Mahdi; Ahmed Basil Ghazi; Yusor Rafid Bahar Al-Mayouf

doi:10.1515/jisys-2020-0137

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Publication Date

Fri Jan 01 2021

Journal Name

Journal Of Intelligent Systems

Volume

30

DOI

10.1515/jisys-2020-0137

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Void-hole aware and reliable data forwarding strategy for underwater wireless sensor networks

underwater WSNs

void-hole

routing

energy efficiency

reliability

Omar Adil Mahdi

Ahmed Basil Ghazi

Yusor Rafid Bahar Al-Mayouf

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Abstract<p>Reliable data transfer and energy efficiency are the essential considerations for network performance in resource-constrained underwater environments. One of the efficient approaches for data routing in underwater wireless sensor networks (UWSNs) is clustering, in which the data packets are transferred from sensor nodes to the cluster head (CH). Data packets are then forwarded to a sink node in a single or multiple hops manners, which can possibly increase energy depletion of the CH as compared to other nodes. While several mechanisms have been proposed for cluster formation and CH selection to ensure efficient delivery of data packets, less attention has been given to massive data communication processes with sink node. As such, failure in communicating nodes would lead to a significant network void-holes problem. Considering the limited energy resources of nodes in UWSNs along with the heavy load of CHs in the routing process, this paper proposes a void-holes aware and reliable data forwarding strategy (VHARD-FS) in a proactive mode to control data packets delivery from CH nodes to the sink in UWSNs. In the proposed strategy, each CH node is aware of its neighbor’s performance ranking index to conduct a reliable packet transmission to the sink via the most energy-efficient route. Extensive simulation results indicate that the VHARD-FS outperforms existing routing approaches while comparing energy efficiency and network throughput. This study helps to effectively alleviate the resource limitations associated with UWSNs by extending network life and increasing service availability even in a harsh underwater environment.</p>

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Error Detection and Correction Codes

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Reliability Analysis

Residual Error Probability

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Wameedh Nazar

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Ensuring reliable data transmission in Network on Chip (NoC) is one of the most challenging tasks, especially in noisy environments. As crosstalk, interference, and radiation were increased with manufacturers' increasing tendency to reduce the area, increase the frequencies, and reduce the voltages. So many Error Control Codes (ECC) were proposed with different error detection and correction capacities and various degrees of complexity. Code with Crosstalk Avoidance and Error Correction (CCAEC) for network-on-chip interconnects uses simple parity check bits as the main technique to get high error correction capacity. Per this work, this coding scheme corrects up to 12 random errors, representing a high correction capac

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(2)

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Iraqi Journal Of Physics

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Theoretical spectroscopic studies of beryllium oxide has been carried out, potential energy curves for ground states X¹Σ⁺ and exited states A¹Π , B¹Σ⁺ by using two functions Morse and and Varshni compared with experimental results. The potentials of this molecule are agreement with experimental results. The Fortrat Parabola corrcponding to and branches were determind in the range 1<J<20 for the (0-0) band. It was found that for electronic transition A¹Π- X¹Σ⁺ the bands head lies in branche of Fortrat p

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Sat Feb 02 2019

Journal Name

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The principals and techniques of geography text book for fourth secondary: The principals and techniques of geography text book for fourth secondary

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Abstract
The curriculum is the major effective tool in achieving the goals of
education and society.

Many countries that want to reach the forefront of developed countries
through their curriculum have realized this fact. School text book, the
application assessment for knowing the rang of success or fail of this text
book in achieving the general aims. therefore this study aims at assessing the
principals and techniques of geography text book for fourth secondary class of
literary studying from the teachers point of view according to the fields of the
book, style of material, technical arrangement of the material, ethnical
arrangement the language of the book, style of the material, technical
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