Cooperative Abnormality Detection via Diffusive Molecular Communications

Beitrag in einer Fachzeitschrift


Details zur Publikation

Autorinnen und Autoren: Mosayebi R, Jamali Kooshkghazi V, Ghoroghchian N, Schober R, Nasiri-Kenari M, Mehrabi M
Zeitschrift: IEEE Transactions on Nanobioscience
Jahr der Veröffentlichung: 2017
Band: 16
Heftnummer: 8
Seitenbereich: 828 - 842
ISSN: 1536-1241
Sprache: Englisch


Abstract

In this paper, we consider abnormality detection via diffusive molecular communications (MCs) for a network consisting of several sensors and a fusion center (FC). If a sensor detects an abnormality, it injects a number of molecules into the medium which is proportional to its sensing output. Two transmission schemes for releasing molecules into the medium are considered. In the first scheme, each sensor releases a different type of molecule (DTM), whereas in the second scheme, all sensors release the same type of molecule (STM). The molecules released by the sensors propagate through the MC channel and some may reach the FC where the final decision regarding whether or not an abnormality has occurred is made. We derive the optimal decision rules for both DTM and STM. However, the optimal detectors entail high computational complexity as log-likelihood ratios (LLRs) have to be computed. To overcome this issue, we show that the optimal decision rule for STM can be transformed into an equivalent low-complexity decision rule. Since a similar transformation is not possible for DTM, we propose simple low-complexity sub-optimal detectors based on different approximations of the LLR. The proposed low-complexity detectors are more suitable for practical MC systems than the original complex optimal decision rule, particularly when the FC is a nano-machine with limited computational capabilities. Furthermore, we analyze the performance of the proposed detectors in terms of their false alarm and missed detection probabilities. Simulation results verify our analytical derivations and reveal interesting insights regarding the tradeoff between complexity and performance of the proposed detectors and the considered DTM and STM schemes.


FAU-Autorinnen und Autoren / FAU-Herausgeberinnen und Herausgeber

Jamali Kooshkghazi, Vahid Dr.-Ing.
Lehrstuhl für Digitale Übertragung
Schober, Robert Prof. Dr.-Ing.
Lehrstuhl für Digitale Übertragung


Einrichtungen weiterer Autorinnen und Autoren

Sharif University of Technology / دانشگاه صنعتی شریف (SUT)


Zitierweisen

APA:
Mosayebi, R., Jamali Kooshkghazi, V., Ghoroghchian, N., Schober, R., Nasiri-Kenari, M., & Mehrabi, M. (2017). Cooperative Abnormality Detection via Diffusive Molecular Communications. IEEE Transactions on Nanobioscience, 16(8), 828 - 842. https://dx.doi.org/10.1109/TNB.2017.2775704

MLA:
Mosayebi, Reza, et al. "Cooperative Abnormality Detection via Diffusive Molecular Communications." IEEE Transactions on Nanobioscience 16.8 (2017): 828 - 842.

BibTeX: 

Zuletzt aktualisiert 2019-05-09 um 18:10