A proactive energy awareness traffic routing for wireless sensor networks against energy sink-holes
Tree topology-based traffic routing in WSNs imposes a heavy burden on its root nodes which quickly results in energy hole formation and eventually sink isolation and network partitioning, which are undesirable. In the literature, proactive approaches that avoid such a formation, particularly with...
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| Main Author: | |
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| Format: | Thesis |
| Language: | English |
| Published: |
2019
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| Subjects: | |
| Online Access: | http://psasir.upm.edu.my/id/eprint/84232/1/FK%202019%2098%20-%20ir.pdf |
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| Summary: | Tree topology-based traffic routing in WSNs imposes a heavy burden on its
root nodes which quickly results in energy hole formation and eventually sink
isolation and network partitioning, which are undesirable. In the literature,
proactive approaches that avoid such a formation, particularly with random
node distribution, has not been extensively explored. In this thesis,
cooperative communication based on tree topology construction is proposed
to address energy and routing decision challenges in WSNs with single and
multiple sinks. This is adopted in the proposed balanced energy-hole
prevention method in tree topology (EBEHA-T) with a single sink. Next, the
problem of large variations in energy consumptions with multiple sinks in
merging tree-based multiple energy hole alleviation algorithm (MEHA-MT) is
addressed. This is a topology construction-based cooperative routing in which
alternate routes are found that avoid data delivery to heavily loaded sinks
which subsequently precludes sink isolation and network partitioning. Finally,
this thesis proposes a collaborative approach among multiple static sinks to
achieve balanced energy among the nodes in the network resulting in
improved reliability. Here, a centralized controlled multiple sink-rooted tree
coordinates traffic delivery to the sink with respect to a reference energy
balance pattern; this is referred to as COMEHA for centralised control-based
multiple-energy hole alleviation. OMNeT++ simulator has been used to
conduct performance evaluations of the above algorithms. Results show an
increase in network energy balance and reduction in average energy
consumption for EBEHA-T, in the range of 78% and 51%, respectively, against
reactive approaches. For MEHA-MT, energy balance achieved were 46% and
60% of two sinks, compared against multiple topology-based traffic routing
cooperation. Finally, COMEHA enhances work efficiency to 0.54 and
increases energy balance to 21% compared with conventional schemes. Overall results show immunization against energy hole formation during
transmission, which results in extended lifetime in WSN. |
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