Signal Reliability Improvement Using Selection Combining Based Macro-Diversity for Off-Body Communications At 868 MHz

Seong Ki Yoo; Simon L. Cotton; Adrian McKernan; William G. Scanlon

Signal Reliability Improvement Using Selection Combining Based Macro-Diversity for Off-Body Communications At 868 MHz

Seong Ki Yoo, Simon L. Cotton, Adrian McKernan, William G. Scanlon

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

1 Citation (Scopus)

80 Downloads (Pure)

Abstract

This paper investigates the potential improvement in signal reliability for outdoor short-range off-body communications channels at 868 MHz using the macro-diversity offered by multiple co-located base stations. In this study, ten identical hypothetical base stations were positioned equidistantly around the perimeter of a rectangle of length 6.67 m and width 3.3 m. A body worn node was placed on the central chest region of an adult male. Five scenarios, each considering different user trajectories, were then analyzed to test the efficacy of using macro-diversity when the desired link is subject to shadowing caused by the human body. A number of selection combining based macro-diversity configurations consisting of four and then ten base stations were considered. It was found that using a macro-diversity system consisting of four base stations (or equivalently signal branches), a maximum diversity gain of 22.5 dB could be obtained while implementing a 10-base station setup this figure could be improved to 25.2 dB.

Original language	English
Title of host publication	Proceedings of 9th European Conference on Antennas and Propagation (EuCAP 2015)
Publisher	Institute of Electrical and Electronics Engineers (IEEE)
Pages	1-5
Number of pages	5
ISBN (Print)	978-88-907018-5-6
Publication status	Published - May 2015
Event	9th European Conference on Antennas and Propagation, EuCAP 2015 - Lisbon, Portugal Duration: 13 May 2015 → 17 May 2015 http://www.eucap2015.org/

Conference

Conference	9th European Conference on Antennas and Propagation, EuCAP 2015
Abbreviated title	EuCAP 2015
Country	Portugal
City	Lisbon
Period	13/05/2015 → 17/05/2015
Internet address	http://www.eucap2015.org/

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Signal Reliability Improvement using Selection Combining Based Macro-Diversity for Off-Body Communications at 868 MHz
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Yoo, S. K., Cotton, S. L., McKernan, A., & Scanlon, W. G. (2015). Signal Reliability Improvement Using Selection Combining Based Macro-Diversity for Off-Body Communications At 868 MHz. In Proceedings of 9th European Conference on Antennas and Propagation (EuCAP 2015) (pp. 1-5). Institute of Electrical and Electronics Engineers (IEEE). http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=7228908&newsearch=true&queryText=Signal%20Reliability%20Improvement%20Using%20Selection%20Combining%20Based%20Macro-Diversity%20for%20Off-Body%20Communications%20At%20868%20MHz

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abstract = "This paper investigates the potential improvement in signal reliability for outdoor short-range off-body communications channels at 868 MHz using the macro-diversity offered by multiple co-located base stations. In this study, ten identical hypothetical base stations were positioned equidistantly around the perimeter of a rectangle of length 6.67 m and width 3.3 m. A body worn node was placed on the central chest region of an adult male. Five scenarios, each considering different user trajectories, were then analyzed to test the efficacy of using macro-diversity when the desired link is subject to shadowing caused by the human body. A number of selection combining based macro-diversity configurations consisting of four and then ten base stations were considered. It was found that using a macro-diversity system consisting of four base stations (or equivalently signal branches), a maximum diversity gain of 22.5 dB could be obtained while implementing a 10-base station setup this figure could be improved to 25.2 dB. ",

author = "Yoo, {Seong Ki} and Cotton, {Simon L.} and Adrian McKernan and Scanlon, {William G.}",

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Yoo, SK, Cotton, SL , McKernan, A & Scanlon, WG 2015, Signal Reliability Improvement Using Selection Combining Based Macro-Diversity for Off-Body Communications At 868 MHz. in Proceedings of 9th European Conference on Antennas and Propagation (EuCAP 2015). Institute of Electrical and Electronics Engineers (IEEE), pp. 1-5, 9th European Conference on Antennas and Propagation, EuCAP 2015, Lisbon, Portugal, 13/05/2015. <http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=7228908&newsearch=true&queryText=Signal%20Reliability%20Improvement%20Using%20Selection%20Combining%20Based%20Macro-Diversity%20for%20Off-Body%20Communications%20At%20868%20MHz>

Signal Reliability Improvement Using Selection Combining Based Macro-Diversity for Off-Body Communications At 868 MHz. / Yoo, Seong Ki; Cotton, Simon L.; McKernan, Adrian; Scanlon, William G.

Proceedings of 9th European Conference on Antennas and Propagation (EuCAP 2015). Institute of Electrical and Electronics Engineers (IEEE), 2015. p. 1-5.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

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AB - This paper investigates the potential improvement in signal reliability for outdoor short-range off-body communications channels at 868 MHz using the macro-diversity offered by multiple co-located base stations. In this study, ten identical hypothetical base stations were positioned equidistantly around the perimeter of a rectangle of length 6.67 m and width 3.3 m. A body worn node was placed on the central chest region of an adult male. Five scenarios, each considering different user trajectories, were then analyzed to test the efficacy of using macro-diversity when the desired link is subject to shadowing caused by the human body. A number of selection combining based macro-diversity configurations consisting of four and then ten base stations were considered. It was found that using a macro-diversity system consisting of four base stations (or equivalently signal branches), a maximum diversity gain of 22.5 dB could be obtained while implementing a 10-base station setup this figure could be improved to 25.2 dB.

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