Virtual MIMO-based cooperative communication for energy-constrained wireless sensor networks

An energy-efficient virtual multiple-input multiple-output (MIMO)-based communication architecture is proposed for distributed and cooperative wireless sensor networks. Assuming a space-time block coding (STBC) based MIMO system, the energy and delay efficiencies of the proposed scheme are derived u...

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Bibliographic Details
Published in:IEEE transactions on wireless communications 2006-05, Vol.5 (5), p.984-989
Main Author: Jayaweera, S.K.
Format: Article
Language:English
Subjects:
Applied sciences
Block codes
Blocking
Channels
Circuits
Delay
Design optimization
Design parameters
Energy consumption
Energy efficiency
Exact sciences and technology
Fading
MIMO
Networks
Sensors
Services and terminals of telecommunications
Systems, networks and services of telecommunications
Telecommunications
Telecommunications and information theory
Telemetry. Remote supervision. Telewarning. Remote control
Training
Transmission and modulation (techniques and equipments)
Wireless communication
Wireless sensor networks
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Description
Summary:An energy-efficient virtual multiple-input multiple-output (MIMO)-based communication architecture is proposed for distributed and cooperative wireless sensor networks. Assuming a space-time block coding (STBC) based MIMO system, the energy and delay efficiencies of the proposed scheme are derived using semi-analytic techniques. The dependence of these efficiency values on physical channel propagation parameters, fading coherence time and the amount of required training is also investigated. The results show that with judicious choice of design parameters the virtual MIMO technique can be made to provide significant energy and delay efficiencies, even after allowing for additional training overheads.
ISSN:1536-1276
1558-2248
DOI:10.1109/TWC.2006.1633350