Low complexity detectors for cooperative wireless sensor networks

Qasim Zeeshan Ahmed, Mohamed Slim Alouini, Sonia Aissa

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

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.

Original languageEnglish
Title of host publication2012 IEEE Vehicular Technology Conference, VTC Fall 2012 - Proceedings
Number of pages5
DOIs
Publication statusPublished - 1 Dec 2012
Externally publishedYes
Event76th IEEE Vehicular Technology Conference, VTC Fall 2012 - Quebec City, QC, Canada
Duration: 3 Sep 20126 Sep 2012

Conference

Conference76th IEEE Vehicular Technology Conference, VTC Fall 2012
CountryCanada
CityQuebec City, QC
Period3/09/126/09/12

Fingerprint

Low Complexity
Wireless Sensor Networks
Wireless sensor networks
Detector
Detectors
Amplification
Bit error rate
Error Rate
Principal Components
Preprocessing
Rank Reduction
Cooperative communication
Cooperative Communication
Sensor
Diversity Gain
Minimum Mean Square Error
Sensors
Signal to noise ratio
Simulation
Receiver

Cite this

Ahmed, Q. Z., Alouini, M. S., & Aissa, S. (2012). Low complexity detectors for cooperative wireless sensor networks. In 2012 IEEE Vehicular Technology Conference, VTC Fall 2012 - Proceedings [6399039] https://doi.org/10.1109/VTCFall.2012.6399039
Ahmed, Qasim Zeeshan ; Alouini, Mohamed Slim ; Aissa, Sonia. / Low complexity detectors for cooperative wireless sensor networks. 2012 IEEE Vehicular Technology Conference, VTC Fall 2012 - Proceedings. 2012.
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Ahmed, QZ, Alouini, MS & Aissa, S 2012, Low complexity detectors for cooperative wireless sensor networks. in 2012 IEEE Vehicular Technology Conference, VTC Fall 2012 - Proceedings., 6399039, 76th IEEE Vehicular Technology Conference, VTC Fall 2012, Quebec City, QC, Canada, 3/09/12. https://doi.org/10.1109/VTCFall.2012.6399039

Low complexity detectors for cooperative wireless sensor networks. / Ahmed, Qasim Zeeshan; Alouini, Mohamed Slim; Aissa, Sonia.

2012 IEEE Vehicular Technology Conference, VTC Fall 2012 - Proceedings. 2012. 6399039.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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Ahmed QZ, Alouini MS, Aissa S. Low complexity detectors for cooperative wireless sensor networks. In 2012 IEEE Vehicular Technology Conference, VTC Fall 2012 - Proceedings. 2012. 6399039 https://doi.org/10.1109/VTCFall.2012.6399039