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Abstract
The inter-user interference between wireless body
area networks worn by two moving persons in an indoor
environment at 60 GHz and 2.45 GHz is investigated experimentally.
Both omni-directional antennas (monopoles) and directional
antennas (horns) were used in the measurements. The interference
power level variation and carrier-to-interference ratio were
measured and characterized. Median interference power level
reduction of nearly 20 dB was achieved in all measured channels
by adopting 60 GHz radio transmissions compared to 2.45 GHz,
both with omni-directional on-body antennas. A further 20 dB
of interference level reduction was achieved at 60 GHz by
adopting directional antennas confining the radiated wave along
the body surface. Level crossing rates for interference power
variation using omni-directional antennas range from 2.7–7.2 s−1
at 2.45 GHz and 32–64 s−1 at 60 GHz for static to progressively
more dynamic links, whereas the corresponding range using
60 GHz directional antennas is reduced to 39–54 s−1. The median
improvement in the instantaneous carrier-to-interference ratio
for the chest-head channel between 60 GHz and 2.45 GHz was
approximately 30 dB. The measured interference power level and
carrier-to-interference ratio, in dB, were found to satisfactorily
fit the normal distribution according to the normalized root mean
square error based fit metric.
Original language | English |
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Pages (from-to) | 4496-4504 |
Number of pages | 10 |
Journal | IEEE Transactions on Antennas and Propagation |
Volume | 63 |
Issue number | 10 |
Early online date | 7 Aug 2015 |
DOIs | |
Publication status | Published - 2 Oct 2015 |
Keywords
- Wireless body area network
- interference
- 60 GHz
- carrier-to-interference ratio
- body movements
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Dive into the research topics of 'Interuser interference in adjacent wireless body area networks'. Together they form a unique fingerprint.Projects
- 1 Finished
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PATRICIAN: New Paradigms for Body Centric Wireless Communications at MM Wavelenghts
Constantinou, C. (Principal Investigator), Hall, P. (Co-Investigator) & Lancaster, M. (Co-Investigator)
Engineering & Physical Science Research Council
1/12/10 → 13/07/14
Project: Research Councils