Low-Complexity Noncoherent Signal Detection for Nanoscale Molecular Communications

Li, B;Sun, MW;Wang, SY;Guo, WS;Zhao, CL

[Li, Bin; Sun, Mengwei; Zhao, Chenglin] Beijing Univ Posts & Telecommun, Sch Informat & Commun Engn, Beijing 100876, Peoples R China.
[Wang, Siyi] Xian Jiaotong Liverpool Univ, Dept Elect & Elect Engn, Suzhou 215123, Peoples R China.
[Guo, Weisi] Univ Warwick, Sch Engn, Coventry CV4 7AL, W Midlands, England.

IEEE TRANSACTIONS ON NANOBIOSCIENCE

Volume:15 Issue:1Pages:3-10

DOI:10.1109/TNB.2015.2504542

Publication Year:2016

JCR:Q2

CAS JCR:3区

ESI Discipline:BIOLOGY & BIOCHEMISTRY

Latest Impact Factor:2.935

Document Type:Journal Article

Identifier:http://hdl.handle.net/20.500.12791/003322

Abstract

Nanoscale molecular communication is a viable way of exchanging information between nanomachines. In this investigation, a low-complexity and noncoherent signal detection technique is proposed to mitigate the inter-symbol-interference (ISI) and additive noise. In contrast to existing coherent detection methods of high complexity, the proposed noncoherent signal detector is more practical when the channel conditions are hard to acquire accurately or hidden from the receiver. The proposed scheme employs the molecular concentration difference to detect the ISI corrupted signals and we demonstrate that it can suppress the ISI effectively. The difference in molecular concentration is a stable characteristic, irrespective of the diffusion channel conditions. In terms of complexity, by excluding matrix operations or likelihood calculations, the new detection scheme is particularly suitable for nanoscale molecular communication systems with a small energy budget or limited computation resource.

Keywords

Diffusion channel energy efficient inter-symbol interference low-complexity molecule communications noncoherent detector

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