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Local convexity inspired low-complexity non-coherent signal detector for nano-scale molecular communications
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Li, Bin, Sun, Mengwei, Wang, Siyi, Guo, Weisi and Zhao, Chenglin (2016) Local convexity inspired low-complexity non-coherent signal detector for nano-scale molecular communications. IEEE Transactions on Communications, 64 (5). 2079 -2091. doi:10.1109/TCOMM.2016.2543734 ISSN 0090-6778.
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Official URL: http://doi.org/10.1109/TCOMM.2016.2543734
Abstract
Molecular communications via diffusion (MCvD) represents a relatively new area of wireless data transfer with especially attractive characteristics for nanoscale applications. Due to the nature of diffusive propagation, one of the key challenges is to mitigate inter-symbol interference (ISI) that results from the long tail of channel response. Traditional coherent detectors rely on accurate channel estimations and incur a high computational complexity. Both of these constraints make coherent detection unrealistic for MCvD systems. In this paper, we propose a low-complexity and noncoherent signal detector, which exploits essentially the local convexity of the diffusive channel response. A threshold estimation mechanism is proposed to detect signals blindly, which can also adapt to channel variations. Compared to other noncoherent detectors, the proposed algorithm is capable of operating at high data rates and suppressing ISI from a large number of previous symbols. Numerical results demonstrate that not only is the ISI effectively suppressed, but the complexity is also reduced by only requiring summation operations. As a result, the proposed noncoherent scheme will provide the necessary potential to low-complexity molecular communications, especially for nanoscale applications with a limited computation and energy budget.
Item Type: | Journal Article | ||||||||
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Subjects: | T Technology > TK Electrical engineering. Electronics Nuclear engineering | ||||||||
Divisions: | Faculty of Science, Engineering and Medicine > Engineering > Engineering | ||||||||
Library of Congress Subject Headings (LCSH): | Molecular communication (Telecommunication) | ||||||||
Journal or Publication Title: | IEEE Transactions on Communications | ||||||||
Publisher: | IEEE | ||||||||
ISSN: | 0090-6778 | ||||||||
Official Date: | 17 March 2016 | ||||||||
Dates: |
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Volume: | 64 | ||||||||
Number: | 5 | ||||||||
Page Range: | 2079 -2091 | ||||||||
DOI: | 10.1109/TCOMM.2016.2543734 | ||||||||
Status: | Peer Reviewed | ||||||||
Publication Status: | Published | ||||||||
Access rights to Published version: | Restricted or Subscription Access | ||||||||
Copyright Holders: | IEEE | ||||||||
Date of first compliant deposit: | 14 March 2016 | ||||||||
Date of first compliant Open Access: | 14 March 2016 | ||||||||
Grant number: | 61471061 | ||||||||
RIOXX Funder/Project Grant: |
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