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Spatial modulation for molecular communication

Spatial modulation for molecular communication
Spatial modulation for molecular communication

In this paper, we propose an energy-efficient spatial modulation based molecular communication (SM-MC) scheme, in which a transmitted symbol is composed of two parts, i.e., a space derived symbol and a concentration derived symbol. The space symbol is transmitted by embedding the information into the index of a single activated transmitter nanomachine. The concentration symbol is drawn according to the conventional concentration shift keying (CSK) constellation. Benefiting from a single active transmitter during each symbol period, SMMC can avoid the inter-link interference problem existing in the current multiple-input multiple-output (MIMO) based MC schemes, which hence enables low-complexity symbol detection and performance improvement. Correspondingly, we propose a low-complexity scheme, which first detects the space symbol by energy comparison, and then detects the concentration symbol by the maximum ratio combining assisted CSK demodulation. In this paper, we analyze the symbol error rate (SER) of the SM-MC and of its special case, namely the space shift keying based MC (SSK-MC), where only space symbol is transmitted and no CSK modulation is invoked. Finally, the analytical results are validated by computer simulations. Our studies demonstrate that both the SSK-MC and SM-MC are capable of achieving better SER performance than the conventional MIMO-MC and single-input single-output based MC, when given the same symbol rate.

inter-link interference, Interference, MIMO, MIMO communication, Modulation, Molecular communication, molecular energy ef?ciency, Nanobioscience, Receivers, spatial modulation, Transmitters, Wireless communication
1536-1241
Huang, Yu
3f446f98-2f77-4f1b-bf61-187fe3118fda
Wen, Miaowen
bc059b46-23e5-49d7-a333-cd5cb404e9d7
Yang, Lie Liang
ae425648-d9a3-4b7d-8abd-b3cfea375bc7
Chae, Chan Byoung
90d9c9fb-2f07-476d-86a4-b8c6e45fe5c1
Ji, Fei
354c2337-6b33-4713-85f6-df57bf3b9c7e
Huang, Yu
3f446f98-2f77-4f1b-bf61-187fe3118fda
Wen, Miaowen
bc059b46-23e5-49d7-a333-cd5cb404e9d7
Yang, Lie Liang
ae425648-d9a3-4b7d-8abd-b3cfea375bc7
Chae, Chan Byoung
90d9c9fb-2f07-476d-86a4-b8c6e45fe5c1
Ji, Fei
354c2337-6b33-4713-85f6-df57bf3b9c7e

Huang, Yu, Wen, Miaowen, Yang, Lie Liang, Chae, Chan Byoung and Ji, Fei (2019) Spatial modulation for molecular communication. IEEE Transactions on Nanobioscience. (doi:10.1109/TNB.2019.2905254).

Record type: Article

Abstract

In this paper, we propose an energy-efficient spatial modulation based molecular communication (SM-MC) scheme, in which a transmitted symbol is composed of two parts, i.e., a space derived symbol and a concentration derived symbol. The space symbol is transmitted by embedding the information into the index of a single activated transmitter nanomachine. The concentration symbol is drawn according to the conventional concentration shift keying (CSK) constellation. Benefiting from a single active transmitter during each symbol period, SMMC can avoid the inter-link interference problem existing in the current multiple-input multiple-output (MIMO) based MC schemes, which hence enables low-complexity symbol detection and performance improvement. Correspondingly, we propose a low-complexity scheme, which first detects the space symbol by energy comparison, and then detects the concentration symbol by the maximum ratio combining assisted CSK demodulation. In this paper, we analyze the symbol error rate (SER) of the SM-MC and of its special case, namely the space shift keying based MC (SSK-MC), where only space symbol is transmitted and no CSK modulation is invoked. Finally, the analytical results are validated by computer simulations. Our studies demonstrate that both the SSK-MC and SM-MC are capable of achieving better SER performance than the conventional MIMO-MC and single-input single-output based MC, when given the same symbol rate.

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08667884 - Accepted Manuscript
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More information

Accepted/In Press date: 1 January 2019
e-pub ahead of print date: 15 March 2019
Keywords: inter-link interference, Interference, MIMO, MIMO communication, Modulation, Molecular communication, molecular energy ef?ciency, Nanobioscience, Receivers, spatial modulation, Transmitters, Wireless communication

Identifiers

Local EPrints ID: 429645
URI: https://eprints.soton.ac.uk/id/eprint/429645
ISSN: 1536-1241
PURE UUID: 85cea466-959b-48eb-954b-e21df905658c
ORCID for Lie Liang Yang: ORCID iD orcid.org/0000-0002-2032-9327

Catalogue record

Date deposited: 03 Apr 2019 16:30
Last modified: 20 Jul 2019 01:12

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