Title :
Error sources in COTS WSN platforms for impulsive signal acquisition applications
Author :
Ali, Haider ; Sharawi, Mohammad S. ; Al-Naffouri, T.Y.
Author_Institution :
Electr. Eng. Dept., King Fahd Univ. of Pet. & Miner. (KFUPM), Dhahran, Saudi Arabia
Abstract :
In this work we present a detailed discussion of the various sources of errors in commercial off the shelf (COTS) wireless sensor node (WSN) platforms through a series of experiments. These COTS WSNs are programmed using the TinyOS 2.x standard components and interfaces. The experimental setup is used to record an impulsive acoustic signal from several sensor nodes´ microphones and send to the base-station for processing. The Flooding Time Synchronization Protocol (FTSP) was used, and a special MATLAB interfacing code was written to analyze and present the errors within this acquisition setup. It was found that there are at least 4 error sources that can dramatically degrade the signal acquisition due to the fact that standard TinyOS components are not suitable for medium/high sampling frequency applications.
Keywords :
acoustic signal detection; impulse noise; operating systems (computers); protocols; telecommunication computing; wireless sensor networks; COTS WSN platform; FTSP; MATLAB interfacing code; TinyOS; commercial off the shelf; error sources; flooding time synchronization protocol; impulsive acoustic signal; impulsive signal acquisition; wireless sensor node; Hardware; Microphones; Standards; Synchronization; Uncertainty; Wireless sensor networks; Writing; COTS; Error Sources; Impulsive Noise; Synchronization; WSN;
Conference_Titel :
Telecommunications (ICT), 2012 19th International Conference on
Conference_Location :
Jounieh
Print_ISBN :
978-1-4673-0745-1
Electronic_ISBN :
978-1-4673-0746-8
DOI :
10.1109/ICTEL.2012.6221220
