On the Outage Capacity of Transdermal Optical Wireless Links with Stochastic Spatial Jitter and Skin-Induced Attenuation

The tremendous development of both optical wireless communications (OWC) and implantable medical devices (IMDs) has recently enabled the establishment of transdermal optical wireless (TOW) links that utilize light waves to transfer information inside the living body to the outside world and converse...

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Bibliographic Details
Published in:Photonics 2021-12, Vol.8 (12), p.553
Main Authors: Varotsos, George K., Aidinis, Konstantinos, Nistazakis, Hector E.
Format: Article
Language:English
Subjects:
Attenuation
Business metrics
Cochlea
Cochlear implants
Communication
Error analysis
implantable medical devices (IMDs)
Mathematical analysis
Medical equipment
New technology
Noise
Optical wireless
optical wireless communications (OWC)
outage capacity
Outages
pointing errors
Power consumption
Propagation
Random variables
Signal processing
Skin
Technical literature
Telemetry
transdermal optical wireless (TOW) links
Transmitters
Vibration
Wireless communications
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Summary:The tremendous development of both optical wireless communications (OWC) and implantable medical devices (IMDs) has recently enabled the establishment of transdermal optical wireless (TOW) links that utilize light waves to transfer information inside the living body to the outside world and conversely. Indeed, numerous emerging medical applications such as cortical recording and telemetry with cochlear implants require extremely high data rates along with low power consumption that only this new technology could accommodate. Thus, in this paper, a typical TOW link is investigated in terms of outage capacity which is a critical performance metric that has so far not been evaluated for such wireless systems in the open technical literature. More precisely, an outage capacity analysis is performed considering both skin-induced attenuation and stochastic spatial jitter, i.e., pointing error effects. Analytical expressions and results for the outage capacity are derived for a variety of skin channel conditions along with varying stochastic pointing errors which demonstrate the feasibility of this cross-field cooperation. Lastly, the corresponding simulation outcomes further validate our suggestions.
ISSN:2304-6732
2304-6732
DOI:10.3390/photonics8120553