WSEAS Transactions on Biology and Biomedicine
Print ISSN: 1109-9518, E-ISSN: 2224-2902
Volume 21, 2024
On the Effect of Flow and Degradation on Hitting Rate of Mobile Nano
Sensors in DiffusiveMolecular Communication Systems
Author:
Abstract: In the paper, an analysis regarding the effect of drift and molecular degradation on the average
number of molecules received at the fusion center (FC) for a diffusive log-normal molecular communication
(MC) system is undertaken. The effect of drift and molecular degradation simultaneously on molecular
reception has not been examined exhaustively in MC literature. Therefore, by utilizing the log-normal distribution
of the number of molecules hitting FC, we calculated the closed-form expressions for the average
number of molecules received in a drift and molecular degradation-free scenario. Subsequently, we also analytically
calculated the closed-form expressions for the average number of molecules received at FC for a
drift-only scenario, and a drift with molecular degradation scenario, respectively. Numerical results highlight
lower average molecular receptions at FC when the transmission media neither experiences drift nor molecular
degradation. The drift introduction in the molecular degradation-free system significantly increases the
average molecular receptions at FC. On the contrary, with the simultaneous introduction of molecular degradation,
the average number of molecular receptions at FC is significantly higher. Finally, all the numerical
results corroborate the derived analytical findings.
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Keywords: Biomarkers, diffusive molecular communication, drift, fusion-center, log-normal molecular
channel, mobile nano-sensors, molecular degradation
Pages: 75-82
DOI: 10.37394/23208.2024.21.8