Array Gain Analysis in Molecular MIMO Communications

Damrath, Martin, Yilmaz, H. Birkan, Chae, Chan-Byoung and Hoeher, Peter (2018) Array Gain Analysis in Molecular MIMO Communications IEEE Access, 6 . pp. 61091-61102. DOI 10.1109/ACCESS.2018.2875925.

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In this paper, spatial transmission techniques in the area of multiple-input multiple-output (MIMO) diffusion-based molecular communications (DBMC) are investigated. For transmitter-side spatial coding, Alamouti-type coding and repetition MIMO coding are analyzed. At the receiver-side, selection diversity and equal-gain combining are studied as combining strategies. Throughout the numerical analysis, a symmetrical 2×2 MIMO-DBMC system is assumed. Furthermore, a trained artificial neural network is utilized to acquire the channel impulse responses. The numerical analysis demonstrates that there is no spatial diversity gain in the DBMC system under investigation, but that it is possible to achieve an array gain instead. In addition, it is shown that for MIMO-DBMC systems repetition MIMO coding is superior to Alamouti-type coding.

Document Type: Article
Research affiliation: Kiel University > Kiel Marine Science
OceanRep > The Future Ocean - Cluster of Excellence
Kiel University
Refereed: Yes
DOI etc.: 10.1109/ACCESS.2018.2875925
ISSN: 2169-3536
Projects: Future Ocean
Date Deposited: 16 Jan 2019 11:36
Last Modified: 17 Jan 2019 09:00

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