A Survey: Wireless Sensor Networks
Abstract
Wireless sensor networks consists of inexpensive sensor nodes, each node has continuous sensing capability with
limited communication power. They can be used for several applications such as commercial, civil, and military
applications including vehicle tracking, climate monitoring, intelligence, medical, agriculture, etc. Their deployment
in environments disaster areas, earthquake/rubble zones or in military battlegrounds can be seriously affected by any
kind of sensor failure or malicious attack/security threats from an enemy. The amount of power carried by the sensor
itself is very limited; replacing sensor or sensor battery is a very time-consuming and costly process, in certain
application environment. Energy efficient operation, channel contention, latency, management, and security of such
networks are complex and critical issues that have to be addressed.
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