Title :
Energy conservation in WSNs: A Collaborative Information Processing approach
Author :
Hefeida, Mohamed S. ; Khokhar, Ashfaq
Author_Institution :
Dept. of Electr. & Comput. Eng., Univ. of Illinois at Chicago, Chicago, IL, USA
Abstract :
We revisit the problem of data redundancy in Wireless Sensor Networks (WSNs) from a Collaborative Signal and Information Processing (CSIP) perspective. We propose an Information Processing and Communication Reduction (IPCR) scheme that utilizes spectrum sensing to detect and eliminate data redundancy. IPCR adapts its functionality according to data-space correlations and is independent of spatial and temporal field correlations. Its operation is also independent of the underlying Medium Access Control (MAC) scheme and does not require location information. Compared to spatial/temporal correlation-based signal and information processing techniques, IPCR can achieve up to N-fold reduction in communication complexity, where N is the number of nodes in a neighborhood.
Keywords :
access protocols; computational complexity; correlation methods; data communication; energy conservation; radio spectrum management; signal detection; signal processing; telecommunication power management; wireless sensor networks; CSIP; IPCR scheme; MAC scheme; N-fold reduction; WSN; collaborative signal and information processing; communication complexity; data redundancy; data-space correlations; energy conservation; information processing and communication reduction; information processing techniques; location information; medium access control scheme; signal processing techniques; spatial field correlations; spectrum sensing; temporal field correlations; wireless sensor networks; Collaboration; Correlation; Information processing; Media Access Protocol; Sensors; Wireless communication; Wireless sensor networks; Sensor networks; cognitive radio networks; collaborative signal and information processing; collaborative spectrum sensing; data aggregation;
Conference_Titel :
Wireless Communications and Mobile Computing Conference (IWCMC), 2014 International
Conference_Location :
Nicosia
Print_ISBN :
978-1-4799-7324-8
DOI :
10.1109/IWCMC.2014.6906511
