Year: 2014
Type: article
Abstract: SEEDEYE, a Multimedia Wireless Sensor Network node N OWADAYS , a large number of systems rely on distributed sensing for implementing advanced functionalities.Multiple sensing units are connected forming a so-called Sensor Network (SN).Whenever the communication between the nodes is achieved through wireless links -as in the almost all the applications -the system is referred as Wireless Sensor Network (WSN).Examples of WSNs can be found everywhere.Industrial plants are controlled by sophisticated networks of RFID transponders, temperature and acceleration sensors [SBP + 12], forest and crops are monitored by distributed smoke, moisture and temperature sensors [SLXX10], enemy territories can be patrolled in a human-free fashion through cameras and microphones [WTK11] and cities start to be monitored by networks of CO2 sensors and smart cameras [SGG + 13].WSNs are composed by nodes, sometimes referred as motes, that can be connected in different topologies.To a great extent, motes are cost constrained hardware devices that implement three main functionalities: they provide an interface to the sensors, they process the sensor readings for generating information and, finally, they transmit the extracted information through the wireless interface.The complexity and the associate computational cost of the intermediate data processing passage depend on the processing paradigm adopted.In some scenarios, simple averaging operations suffice for extracting the requested information, while in others, complex neural networks [GPK11] or advanced filtering operations [BGS + 11] are needed.According to Taj et al. [TC11], WSNs can process data in three fashions:
Author: Marco Ghibaudi
Language: English
Subfield: Signal Processing
Field: Computer Science
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W2133640875