Enhancing Signal Strength and ISI-Avoidance of Diffusion-based Molecular Communication | IEEE Conference Publication | IEEE Xplore

Enhancing Signal Strength and ISI-Avoidance of Diffusion-based Molecular Communication


Abstract:

Diffusion-based Molecular Communication is a bioinspired system, which uses random walk diffusive molecules as carriers of the information between the transmitter and the...Show More

Abstract:

Diffusion-based Molecular Communication is a bioinspired system, which uses random walk diffusive molecules as carriers of the information between the transmitter and the receiver. One of the main challenges of that system is the Inter-Symbol-Interference (ISI), caused by the channel memory and represented by a heavy tail in the impulse response. While most prior work has proposed the use of enzymes to catalyze the degradation of the remaining molecules, which mitigates ISI and increases the data rate, the enzymes will decrease the signal strength by degrading also the molecules carrying the information. In this paper, we propose the use of non-enzymatic reactions to degrade only the received molecules, which increases the amplitude of the received signal and at the same time mitigates ISI, enhancing by that the signal strength and the achievable throughput. In this study, we focused on photolysis reactions, which use light to instantly degrade the molecules. We studied the optimal time of light emission with 3D stochastic simulations, using AcCoRD simulator. Simulation results show an improvement of the received signal when using non-enzymatic reactions, compared to enzymatic systems. The performance of the proposed method was evaluated using interference-to-total-received molecules (ITR).
Date of Conference: 25-29 June 2018
Date Added to IEEE Xplore: 30 August 2018
ISBN Information:
Electronic ISSN: 2376-6506
Conference Location: Limassol, Cyprus

References

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