The Significance of Wireless Monitoring Technology for Sleep Apnoea and MIMO

The Significance of Wireless Monitoring Technology for Sleep Apnoea and MIMO


The Significance of Wireless Monitoring Technology for Sleep Apnoea and MIMO
Sleep disorder also called Obstructive Sleep Apnoea (OSA) is a serious medical
condition. One in four Australians suffers from sleep apnoea. Without proper
diagnostics and corrective measures, OSA may lead to life-threatening medical
conditions. In OSA, the patient is deprived of oxygen due to the complete blockage
of the upper airways as shown in Fig. 1.1.
Wireless monitoring technologies have been widely applied in biomedical
applications during the past decade [1]. However, there is not a research group in
the world who has fully realized the commercial level wireless monitoring system
for sleep apnoea. The current sleep research has been evolved around different
wireless technologies such as Wi-Fi, Bluetooth and ZigBee-based RF transceivers.
A standard sleep apnoea monitoring system requires to monitor eleven to
twenty-two physiological parameters in at least 22 channels. However, the integration of these 22 channels into a compact, wearable and the highly efficient
system has become a very big challenging topic in the academic and industrial
research arena. The research groups around the world are trying to use different
technologies mentioned above using different frequencies bands at 900 MHz, 2.4
and 5.8 GHz. These are mostly unlicensed instrumentation, scientific and medical
(ISM) bands. In recent years, multiple-input multiple-output (MIMO) signal processing technology has been widely explored in the application areas of wireless
body area network (WBAN) due to the extraordinary benefits the MIMO technology can offer. MIMO becomes widely accepted in wireless communication and
information processing technologies due to its immunity to random fading, and
when available, multipath delay spread for multiplying transfer rates. MIMO
depends on multipath communications to send multiple versions of data streams
that are transmitted from several antennas. By doing this, not only the noise in the
system reduces but also the spectral efficiency of the system greatly increases.
© Springer Nature Singapore Pte Ltd. 2018
N. C. Karmakar et al., Microwave Sleep Apnoea Monitoring, Series in BioEngineering,

The studies will gain each sleep apnoea sufferers and hospitals with the aid of decreasing
the fee of the device. The compact transportable wi-fi affected person monitoring tool will
enable sufferers to be greater cozy at some point of analysis, mainly for paediatric
patients. that is because sleep apnoea monitoring requires measuring 11–22
physiological parameters concurrently to analyse slumbering styles of a patient.
that is a nontrivial challenge to gain in a easy modular machine. The research
stated on this e book has made substantial contributions inside the physical layer
development inside the following fields as follows: (1) very compact 2.4 and 5.8 GHz
radio frequency-based sleep apnoea tracking devices with successful 5.eight GHz
signal penetration functionality in a simulated surroundings for sleep apnoea monitoring, (2) the development of a unique layout of microstrip filters the use of complementary compact microstrip resonant mobile Complementary Compact Microstrip
Resonant cell (CMRC) and defected floor shape (DGS), (3) the improvement
of a high efficiency and excessive output power amplifier and oscillator for wi-fi
electricity transmission, and (4) concept approval of the proposed novel wi-fi
on-body transducer. in addition to the above physical layer improvement, we additionally
advanced advanced stage signal processing algorithm based on virtual MIMO
cooperative network coding.
We want a MIMO device for some of reasons. The wi-fi system before
MIMO has been limited via community ability which is related to channel exceptional
and coverage. to see how issues occur, we need to talk approximately transmission in a
multipath channel. In wi-fi communications, the propagation channel is characterised by means of multipath propagation because of scattering on one of a kind boundaries. The multipath trouble is a standard issue within the wireless communications machine with time
Fig. 1.1 Sleep apnoea due to blockage of higher airway (supply
sleep-apnea/ accessed on nine might also 2017)
versions and time spread of the scattered signals within the wi-fi channel. For time
variations, the channel fades and reasons signal to noise ratio (SNR) variations. For
time unfold, suitable frequency selectivity will become critical. In an city surroundings, these indicators soar off trees, buildings, hills and surrounding limitations and

The Significance of Wireless Monitoring Technology for Sleep Apnoea and MIMO The Significance of Wireless Monitoring Technology for Sleep Apnoea and MIMO Reviewed by Jose Binda on juillet 31, 2019 Rating: 5

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