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An Energy-Efficient Cooperative SIMO Transmission Scheme for Wireless Sensor Networks | IEEE Conference Publication | IEEE Xplore

An Energy-Efficient Cooperative SIMO Transmission Scheme for Wireless Sensor Networks


Abstract:

This paper presents a cooperative single-input multiple-output (SIMO) transmission scheme for wireless sensor networks (WSNs), where the number of antennas and the conste...Show More

Abstract:

This paper presents a cooperative single-input multiple-output (SIMO) transmission scheme for wireless sensor networks (WSNs), where the number of antennas and the constellation size of modulation are jointly optimized for different transmission distances such that the energy consumption is minimized. As compared to previous cooperative MIMO schemes for WSNs, the proposed one achieves higher energy efficiency and has a smaller critical distance above which cooperative MIMO/SIMO outperforms single-input single-output (SISO). The proposed optimization method is further extended to a clustered multi-hop WSN scenario. Through joint optimization of the number of transmitter antennas, the number of receiver antennas, the constellation size, and the hop length, we derive an energy-efficient clustered cooperative SIMO multi-hop scheme. Numerical results show that the proposed scheme not only reduces the overall energy consumption but also balances the energy consumption among clusters.
Date of Conference: 14-18 June 2009
Date Added to IEEE Xplore: 11 August 2009
CD:978-1-4244-3435-0

ISSN Information:

Conference Location: Dresden, Germany

References

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