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An Energy Efficient Modulation Scheme for Body-Centric Terahertz (THz) Nanonetworks

1
Department of Electrical and Computer Engineering, Aristotle University of Thessaloniki, GR-54124 Thessaloniki, Greece
2
Department of Physics, Aristotle University of Thessaloniki, GR-54124 Thessaloniki, Greece
*
Author to whom correspondence should be addressed.
This paper is an extended version of our paper published in 2018 7th International Conference on Modern Circuits and Systems Technologies (MOCAST), Thessaloniki, Greece, 7–9 May 2018.
Technologies 2019, 7(1), 14; https://doi.org/10.3390/technologies7010014
Received: 10 January 2019 / Accepted: 19 January 2019 / Published: 22 January 2019
(This article belongs to the Special Issue Modern Circuits and Systems Technologies on Communications)
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Abstract

In body-centric communications, energy efficiency is a critical performance metric, while the achievable data rate is not of primary concern. In this paper we present a novel modulation scheme, which can be efficiently used in body-centric terahertz (THz) nanonetworks. The proposed scheme is a combination of the time-spread On-Off keying (TS–OOK) and the pulse position modulation (PPM) and presents lower energy consumption, compared to other existing methods as TS–OOK, at a minor cost to the data rate. Furthermore, another important aspect is that the proposed modulation scheme can be effectively used to mitigate the impact of the specific kind of noise in THz body-centric communications, thus leading to better error performance. Finally, we present analytical and simulation results in order to compare the new scheme with the existing TS–OOK. View Full-Text
Keywords: terahertz band; nanosensors; nanonetworks; femtosecond pulses; body-centric communications terahertz band; nanosensors; nanonetworks; femtosecond pulses; body-centric communications
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Vavouris, A.K.; Dervisi, F.D.; Papanikolaou, V.K.; Diamantoulakis, P.D.; Karagiannidis, G.K.; Goudos, S.K. An Energy Efficient Modulation Scheme for Body-Centric Terahertz (THz) Nanonetworks. Technologies 2019, 7, 14.

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