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Equalisation and performance of diffusive molecular communication systems with binary molecular-shift keying modulation

Equalisation and performance of diffusive molecular communication systems with binary molecular-shift keying modulation
Equalisation and performance of diffusive molecular communication systems with binary molecular-shift keying modulation
This study investigates the equalisation techniques for the diffusive molecular communication (DMC) systems with binary molecular-shift keying (BMoSK) modulation, referred to as the BMoSK-DMC systems, in order to mitigate the effect of inter-symbol interference (ISI). The authors first show that in terms of receiving equalisation, a BMoSK-DMC system is in fact equivalent to a conventional binary phase-shift keying modulated radio communication system encountering ISI. Hence, a wealth of equalisation techniques developed with the conventional radio communication systems may be introduced for equalisation of BMoSK-DMC signals. However, considering the limited capability of molecular transceivers on computation and storage, in this study, the authors investigate only the linear equalisers (LEQ) in the principles of matched-filtering, zero-forcing (ZF) and minimum mean-square error (MMSE). They characterise the effects of the different aspects related to DMC signalling and propagation on the achievable performance of the BMoSK-DMC systems with these LEQ. Their studies and performance results demonstrate that both the ZF- and MMSE-LEQ are capable of efficiently suppressing the ISI and attaining promising performance, while still have low-complexity to facilitate implementation.
Yang, Lieliang
ae425648-d9a3-4b7d-8abd-b3cfea375bc7
Shi, Lu
196c1ba1-554c-47e4-ba8d-fc1aa4394126
Yang, Lieliang
ae425648-d9a3-4b7d-8abd-b3cfea375bc7
Shi, Lu
196c1ba1-554c-47e4-ba8d-fc1aa4394126

Yang, Lieliang and Shi, Lu (2019) Equalisation and performance of diffusive molecular communication systems with binary molecular-shift keying modulation. IET Communications.

Record type: Article

Abstract

This study investigates the equalisation techniques for the diffusive molecular communication (DMC) systems with binary molecular-shift keying (BMoSK) modulation, referred to as the BMoSK-DMC systems, in order to mitigate the effect of inter-symbol interference (ISI). The authors first show that in terms of receiving equalisation, a BMoSK-DMC system is in fact equivalent to a conventional binary phase-shift keying modulated radio communication system encountering ISI. Hence, a wealth of equalisation techniques developed with the conventional radio communication systems may be introduced for equalisation of BMoSK-DMC signals. However, considering the limited capability of molecular transceivers on computation and storage, in this study, the authors investigate only the linear equalisers (LEQ) in the principles of matched-filtering, zero-forcing (ZF) and minimum mean-square error (MMSE). They characterise the effects of the different aspects related to DMC signalling and propagation on the achievable performance of the BMoSK-DMC systems with these LEQ. Their studies and performance results demonstrate that both the ZF- and MMSE-LEQ are capable of efficiently suppressing the ISI and attaining promising performance, while still have low-complexity to facilitate implementation.

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Equalization and performance of diffusive molecular communication systems with binary molecular-shift keying modulation - Accepted Manuscript
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Accepted/In Press date: 17 October 2019
e-pub ahead of print date: 21 October 2019

Identifiers

Local EPrints ID: 439137
URI: http://eprints.soton.ac.uk/id/eprint/439137
PURE UUID: 9618c33b-34dd-4392-9e67-18cb19191df7
ORCID for Lieliang Yang: ORCID iD orcid.org/0000-0002-2032-9327

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Date deposited: 06 Apr 2020 16:30
Last modified: 07 Oct 2020 01:42

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