Low complexity detectors for cooperative wireless sensor networks

Handle URI:
http://hdl.handle.net/10754/564604
Title:
Low complexity detectors for cooperative wireless sensor networks
Authors:
Ahmed, Qasim Zeeshan; Alouini, Mohamed-Slim ( 0000-0003-4827-1793 ) ; Aïssa, Sonia
Abstract:
This paper investigates and compares the performance of wireless sensor networks (WSN) when sensors operate on the principles of cooperative communications. We consider a scenario where the source transmits signals to the destination with the help of L sensors. As the destination has the capacity of processing only U out of these L signals, U strongest signals are selected while the remaining (L - U) signals are suppressed. A preprocessing block similar to channel-shortening (CS) is proposed in this contribution. However, this preprocessing block employs rank-reduction technique instead of CS. This detector operates on the principles of principal components (PC). From our simulations it can be observed that this detector is capable of achieving a similar bit error rate (BER) performance as the full-rank MMSE detector with significantly lower complexity. It outperforms the CS-based detector in terms of BER performance when using fixed amplification factor. However, for variable gain amplification factor a tradeoff between the diversity gain and the receiver complexity can be observed. From the simulations it can be concluded that the BER performance of the PC-based detector when using variable gain amplification factor are better than that of the CS-based detector for lower signal to noise ratio. © 2012 IEEE.
KAUST Department:
Electrical Engineering Program; Computer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division; Communication Theory Lab
Publisher:
Institute of Electrical and Electronics Engineers (IEEE)
Journal:
2012 IEEE Vehicular Technology Conference (VTC Fall)
Conference/Event name:
76th IEEE Vehicular Technology Conference, VTC Fall 2012
Issue Date:
Sep-2012
DOI:
10.1109/VTCFall.2012.6399039
Type:
Conference Paper
ISSN:
15502252
ISBN:
9781467318815
Appears in Collections:
Conference Papers; Electrical Engineering Program; Communication Theory Lab; Computer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division

Full metadata record

DC FieldValue Language
dc.contributor.authorAhmed, Qasim Zeeshanen
dc.contributor.authorAlouini, Mohamed-Slimen
dc.contributor.authorAïssa, Soniaen
dc.date.accessioned2015-08-04T07:04:56Zen
dc.date.available2015-08-04T07:04:56Zen
dc.date.issued2012-09en
dc.identifier.isbn9781467318815en
dc.identifier.issn15502252en
dc.identifier.doi10.1109/VTCFall.2012.6399039en
dc.identifier.urihttp://hdl.handle.net/10754/564604en
dc.description.abstractThis paper investigates and compares the performance of wireless sensor networks (WSN) when sensors operate on the principles of cooperative communications. We consider a scenario where the source transmits signals to the destination with the help of L sensors. As the destination has the capacity of processing only U out of these L signals, U strongest signals are selected while the remaining (L - U) signals are suppressed. A preprocessing block similar to channel-shortening (CS) is proposed in this contribution. However, this preprocessing block employs rank-reduction technique instead of CS. This detector operates on the principles of principal components (PC). From our simulations it can be observed that this detector is capable of achieving a similar bit error rate (BER) performance as the full-rank MMSE detector with significantly lower complexity. It outperforms the CS-based detector in terms of BER performance when using fixed amplification factor. However, for variable gain amplification factor a tradeoff between the diversity gain and the receiver complexity can be observed. From the simulations it can be concluded that the BER performance of the PC-based detector when using variable gain amplification factor are better than that of the CS-based detector for lower signal to noise ratio. © 2012 IEEE.en
dc.publisherInstitute of Electrical and Electronics Engineers (IEEE)en
dc.titleLow complexity detectors for cooperative wireless sensor networksen
dc.typeConference Paperen
dc.contributor.departmentElectrical Engineering Programen
dc.contributor.departmentComputer, Electrical and Mathematical Sciences and Engineering (CEMSE) Divisionen
dc.contributor.departmentCommunication Theory Laben
dc.identifier.journal2012 IEEE Vehicular Technology Conference (VTC Fall)en
dc.conference.date3 September 2012 through 6 September 2012en
dc.conference.name76th IEEE Vehicular Technology Conference, VTC Fall 2012en
dc.conference.locationQuebec City, QCen
dc.contributor.institutionINRS, University of Quebec, Montreal, QC, Canadaen
kaust.authorAhmed, Qasim Zeeshanen
kaust.authorAlouini, Mohamed-Slimen
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