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 |
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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 |
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Abbreviated title | EuCAP 2015 |
Country | Portugal |
City | Lisbon |
Period | 13/05/2015 → 17/05/2015 |
Internet address |