Chemical Reactions-based Detection Mechanism for Molecular Communications

Cao TN, Jamali V, Wicke W, Yeoh PL, Zlatanov N, Evans J, Schober R (2020)

Publication Type: Conference contribution

Publication year: 2020

Publisher: Institute of Electrical and Electronics Engineers Inc.

Book Volume: 2020-May

Conference Proceedings Title: IEEE Wireless Communications and Networking Conference, WCNC

Event location: Seoul KR

ISBN: 9781728131061

DOI: 10.1109/WCNC45663.2020.9120671

Abstract

In molecular communications, the direct detection of signaling molecules may be challenging due to the lack of suitable sensors and interference from co-existing substances in the environment. Motivated by examples in nature, we investigate an indirect detection mechanism using chemical reactions between the signaling molecules and a molecular probe to produce an easy-to-measure product at the receiver. The underlying reaction-diffusion equations that describe the concentrations of the reactant and product molecules in the system are non-linear and coupled, and cannot be solved in closed-form. To analyze these molecule concentrations, we develop an efficient iterative algorithm by discretizing the time variable and solving for the space variables in each time step. We also derive insightful closed-form solutions for a special case. The accuracy of the proposed algorithm is verified by particle-based simulations. Our results show that the concentration of the product molecules has a similar characteristic over time as the concentration of the signaling molecules. We analyze the bit error rate (BER) for a threshold detector and highlight that significant improvements in the BER can be achieved by carefully choosing the molecular probe and optimizing the detection threshold.

Authors with CRIS profile

Wayan Wicke Lehrstuhl für Digitale Übertragung Robert Schober Lehrstuhl für Digitale Übertragung

Involved external institutions

The University of Melbourne AU Australia (AU)

How to cite

APA:

Cao, T.N., Jamali, V., Wicke, W., Yeoh, P.L., Zlatanov, N., Evans, J., & Schober, R. (2020). Chemical Reactions-based Detection Mechanism for Molecular Communications. In IEEE Wireless Communications and Networking Conference, WCNC. Seoul, KR: Institute of Electrical and Electronics Engineers Inc..

MLA:

Cao, Trang Ngoc, et al. "Chemical Reactions-based Detection Mechanism for Molecular Communications." Proceedings of the 2020 IEEE Wireless Communications and Networking Conference, WCNC 2020, Seoul Institute of Electrical and Electronics Engineers Inc., 2020.

BibTeX: Download