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Reliable Data Deliveries Using Packet Optimization In Multi Hop Underwater Sensor Networks

المصدر: مجلة جامعة الملك سعود - علوم الحاسب والمعلومات
الناشر: جامعة الملك سعود
المؤلف الرئيسي: Ayaz, Muhammad (Author)
مؤلفين آخرين: Jung, Low Tang (Co-Author) , Abdullah, Azween (Co-Author) , Ahmad, Iftikhar (Co-Author)
المجلد/العدد: مج24, ع1
محكمة: نعم
الدولة: السعودية
التاريخ الميلادي: 2012
الصفحات: 41 - 48
DOI: 10.33948/0584-024-001-005
ISSN: 1319-1578
رقم MD: 972037
نوع المحتوى: بحوث ومقالات
اللغة: الإنجليزية
قواعد المعلومات: science
مواضيع:
كلمات المؤلف المفتاحية:
Underwater Wireless Communications | Acoustic Channel | Optimal Packet Size | Hop By Hop Reliability | Hop ID | 2H-ACK
رابط المحتوى:
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المستخلص: A fundamental challenge in underwater wireless sensor networks (UWSNs) is that acoustic links are subject to high transmission power with high channel impairments. These channel impairments result in higher error rates and temporary path losses which restrict the efficiency of these networks. Besides this, the availability of limited resources and continuous node movements are major threats for reliable data deliveries. With these constraints, it is a difficult task to design a protocol which has the ability to maximize the reliability of these networks. In this paper we provide a reliability model in order to insure reliable data deliveries from sensor nodes to surface sink. For this purpose, we propose an algorithm which determines the suitable data packet size for efficient data transfer. It uses a two-hop acknowledgment (2H-ACK) model where two copies of the same data packet are maintained in the network without extra burden on the available resources. The findings on the relationship between data packet size, throughput, bit error rate (BER), and distance between both communicating nodes are also presented.

ISSN: 1319-1578

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