One of the major functions of a wireless sensor
network is the monitoring of a particular area. Coverage is
considered as an important measure of quality of service
provided by a wireless sensor network and also emergence of
holes in the area of interest is unavoidable due to the nature of
WSN nodes. If there is a hole in the network, during data
transmission across the hole, the data will move along the hole
boundary nodes again and again. This will cause the depletion
of energy of nodes in the hole boundary nodes. So detection and
healing of such coverage holes is an important factor of concern.
There are a number of techniques are introduced to detect and
heal holes in WSN. This work reviews these techniques and will
explain its merits and demerits.
Published In : IJCAT Journal Volume 2, Issue 2
Date of Publication : March 2015
Pages : 81 - 83
Figures :--
Tables : 01
Publication Link :A Survey on Hole Detection and Healing Techniques
in WSN
Soumya P. V. : M-Tech Student, Computer Science and Engineering, MES college of Engineering
Malappuram, Kerala, India
Shreeja R. : Assistant Professor, Computer Science and Engineering, MES college of Engineering
Malappuram, Kerala, India
Coverage
Hole
Hole Detection
Hole healing
WSN
Geometrical approach for hole detection requires GPS
enabled sensor and is expensive. They consume a lot of
energy and it is not practical for sensors to know their
exact location in hostile environment. Topological
approach provides realistic results but involves
communication overhead.
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