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Equal-gain combining with interference mitigation for molecular type hopping assisted molecular shift keying systems
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Authors: Weidong Gao, Terrence Mak, Lie-Liang Yang
Status: Final
Date of publication: 6 December 2021
Published in: ITU Journal on Future and Evolving Technologies, Volume 2 (2021), Issue 2, Pages 157-164
Article DOI : https://doi.org/10.52953/NMLF1506
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 | Abstract:
In multiple access molecular diffusive communications, many nano-machines exchange information and fuse data through a common Diffusive Molecular Communication (DMC) channel. Hence, there is Multiple-Access Interference (MAI), which should be sufficiently mitigated so as to achieve reliable communications. In this paper, we propose a novel low-complexity detection scheme, namely Equal-Gain Combining with Interference Mitigation (EGC-IM), for signal detection in the Molecular Type Hopping assisted Molecular Shift Keying (MTH-MoSK) DMC systems. By removing a number of entries from each row of the detection matrix formed during detection, the EGC-IM scheme shows its potential to significantly mitigate MAI and hence, outperform the conventional EGC scheme. Furthermore, the EGC-IM scheme has lower complexity than the conventional EGC scheme and therefore, it is beneficial for practical implementation. |
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Keywords: Diffusive molecular communications, equal-gain combining, interference mitigation, molecular shift keying, multiple-access
Rights: © International Telecommunication Union, available under the CC BY-NC-ND 3.0 IGO license.
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