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Please use this identifier to cite or link to this item: https://repository.uksw.edu/handle/123456789/3040
Title: A Survey on Wireless Sensor Networks Powered by Environmental Energy
Authors: Santoso, Daniel
Keywords: WSN;environmental energy;network protocol;battery
Issue Date: Oct-2008
Publisher: Fakultas Teknik Universitas Kristen Satya Wacana
Abstract: Sensor networks differ from traditional wireless networks in several respects. Unlike handheld wireless devices which can be recharged at reasonable frequent intervals, sensor nodes must operate autonomously for much longer durations. Energy supply thus remains an open challenge in sensor networks because unfettered deployment rules out traditional wall socket supplies and batteries with acceptable form factor and cost constraints do not yield the lifetimes desired by most applications. Wireless sensor networks (WSNs) research has predominantly assumed the use of a portable and limited energy source, namely batteries, to power sensors. Without energy, a sensor is essentially useless and cannot contribute to the utility of the network as a whole. Consequently, substantial research efforts have been spent on designing energy-efficient networking protocols to maximize the lifetime of WSNs. However, there are emerging WSN applications where sensors are required to operate for much longer durations (like years or even decades) after they are deployed. Examples include in-situ environmental/habitat monitoring and structural health monitoring of critical infrastructures and buildings, where batteries are hard or nearly impossible to replace/recharge. Lately, an alternative to powering WSNs is being actively studied, which is to convert the ambient energy from the environment into electricity to power the sensor nodes. While renewable energy technology is not new (e.g., solar and wind) the systems in use are far too large for WSNs. Those small enough for use in wireless sensors are most likely able to provide only enough energy to power sensors sporadically and not continuously. Sensor nodes need to exploit the sporadic availability of energy to quickly sense and transmit the data. This paper surveys related research and discusses the challenges of designing networking protocols for such WSNs powered by environmental energy.
Description: Techne : Jurnal ilmiah Elektronika ; vol.7, no. 2, Oktober 2008 : p.45 - 63
URI: http://repository.uksw.edu/handle/123456789/3040
ISSN: 1412-8292
Appears in Collections:Techne 2008 Vol. 7 No. 2 Oktober

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