Kablosuz Algılayıcı Ağlarda En Az Sayıda Düğüm Kullanımı için Maliyet Etkin Algılayıcı Düğüm Yerleştirme Yaklaşımı

Öz

Kablosuz algılayıcı ağlar birçok alanda yaygın olarak kullanılan kablosuz ağ teknolojisidir. Yeraltı, karasal, sualtı ve endüstriyel algılayıcı ağlar olmak üzere farklı kullanım alanları bulunmaktadır. Kablosuz algılayıcı ağlardaki en önemli sorunlardan birisi, algılayıcı düğümlerin mekanik nedenlerden dolayı arızaya meyilli olmasıdır. Diğer bir sorun ise, kablosuz algılayıcı düğümlerin sınırlı enerjiye sahip olmasıdır. Bu bağlamda, hata sezme mekanizmaları bulunan ve enerji verimli olarak çalışan algılayıcı ağ tasarımları büyük önem taşımaktadır. Bunun yanında, maliyet açısından algılayıcı düğümlerin yerleştirildiği konumları belirleme tekniği oldukça önemlidir. Düğümlerin yerleştirildiği konumlar, hedef bölgenin bir düğümün algılama alanı içinde olma olasılığını ve bu düğümün baz istasyonu ile olan bağlantısını etkilemektedir. Bu makale çalışmasında, çok sayıda algılayıcı düğümün geniş bir alana yerleştirildiği farklı bir yaklaşım önerilmektedir. Algılayıcı düğümler; belirli bir bölgedeki sıcaklık, nem, basınç vb. parametreleri algılamak için tüm bölgeyi kapsayacak şekilde yerleştirilmektedir. Düğümler tarafından algılanan değerler, merkezde sabit olarak bulunan baz istasyonu tarafından toplanmaktadır. Önerilen yaklaşımın benzetim modeli, Riverbed Modeler yazılımı kullanılarak gerçekleştirilmiştir. Önerilen yaklaşım sayesinde, belirli bir bölgenin en az sayıda kablosuz algılayıcı düğüm ile sezilmesi sağlanmaktadır.

Anahtar Kelimeler

• Cihaz Maliyeti,Düğüm Yerleştirme,Enerji Tüketimi,Kablosuz algılayıcı ağ,Kapsama Alanı

Cost Efficient Sensor Node Placement Approach for Using Minimum Number of Node in Wireless Sensor Networks

Öz

Wireless sensor networks are widely used wireless network technology in many areas. There are different usage areas such as underground, terrestrial, underwater and industrial sensor networks. One of the most important problems in wireless sensor networks is that the sensor nodes are prone to malfunction due to mechanical reasons. Another problem is that the wireless sensor nodes have limited energy. In this context, sensor network designs with error sensing mechanisms and energy efficient operations are of great importance. In addition, the technique of determining the locations where the sensor nodes are placed is very important in terms of cost. The locations where the nodes are placed affect the probability that the target region is within the detection area of ​​a node and its connection with the base station. In this paper, a different approach is proposed in which a large number of sensor nodes are placed on a large area. Sensor nodes are placed to cover the entire region in a specific area in order to detect the parameters such as temperature, humidity, pressure, etc. The values ​​detected by the nodes are collected by the base station which is fixed at the center. The simulation model of the proposed approach was performed by using Riverbed Modeler software. Thanks to the proposed approach, it is ensured that a certain region is sensed by the minimum number of wireless sensor nodes.

Anahtar Kelimeler

• Device Cost,Node placement,Energy Consumption,Wireless sensor network,Coverage Area

Kaynakça

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