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  •   Open Research
  • AUT Faculties
  • Faculty of Design and Creative Technologies (Te Ara Auaha)
  • School of Engineering, Computer and Mathematical Sciences - Te Kura Mātai Pūhanga, Rorohiko, Pāngarau
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Performance analysis of cooperative Virtual MIMO Systems for wireless sensor networks

Rafique, Z; Seet, B-C; Al-Anbuky, A
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Performance analysis_article.pdf (727.6Kb)
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http://hdl.handle.net/10292/9388
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Abstract
Multi-Input Multi-Output (MIMO) techniques can be used to increase the data rate for a given bit error rate (BER) and transmission power. Due to the small form factor, energy and processing constraints of wireless sensor nodes, a cooperative Virtual MIMO as opposed to True MIMO system architecture is considered more feasible for wireless sensor network (WSN) applications. Virtual MIMO with Vertical-Bell Labs Layered Space-Time (V-BLAST) multiplexing architecture has been recently established to enhance WSN performance. In this paper, we further investigate the impact of different modulation techniques, and analyze for the first time, the performance of a cooperative Virtual MIMO system based on V-BLAST architecture with multi-carrier modulation techniques. Through analytical models and simulations using real hardware and environment settings, both communication and processing energy consumptions, BER, spectral efficiency, and total time delay of multiple cooperative nodes each with single antenna are evaluated. The results show that cooperative Virtual-MIMO with Binary Phase Shift Keying-Wavelet based Orthogonal Frequency Division Multiplexing (BPSK-WOFDM) modulation is a promising solution for future high data-rate and energy-efficient WSNs.
Keywords
Cooperative virtual MIMO; Wavelet based OFDM; V-BLAST; Wireless sensor networks
Date
May 28, 2013
Source
Sensors 2013, 13(6), 7033-7052; doi:10.3390/s130607033
Item Type
Journal Article
Publisher
MDPI
DOI
10.3390/s130607033
Publisher's Version
http://dx.doi.org/10.3390/s130607033
Rights Statement
© 2013 by the authors; licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution license (http://creativecommons.org/licenses/by/3.0/).

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