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Article Dans Une Revue IEEE Transactions on Wireless Communications Année : 2017

Analysis of the Chirality Effects on the Capacity of Wireless Communication Systems in the THz band

Résumé

The potentialities of Terahertz frequency band in the context of nano-scale communications are largely increasing, thanks to specific features that allow to overcome the issues related to the spectrum scarcity and capacity limitation. Apart from high molecular absorption and very high reflection loss that represent the main phenomena in Terahertz (THz) band, in this paper we investigate the chirality effects that affect the propagation medium, in the frequency range (4 − 10) THz. It is observed that in this interval the chiral parameter shows resonance peaks in specific frequencies. In this paper we investigate the channel capacity in a special medium affected by chirality effects, such as biomolecules, DNA chains, etc. Specifically, we analyze the signal propagation in a chiral medium where a Giant Optical Activity (GOA) is present. This effect is typical of the so-called chiral-metamaterials. Through simulation results we distinguish the behavior of a chirality-affected channel with GOA in Line-of-Sight and Non-Line-of-Sight propagations, assuming different power allocation techniques and also comparing the performance to the case of No GOA.

Domaines

Informatique
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Dates et versions

hal-01589268 , version 1 (18-09-2017)

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Anna Maria Vegni, Valeria Loscrì. Analysis of the Chirality Effects on the Capacity of Wireless Communication Systems in the THz band. IEEE Transactions on Wireless Communications, 2017, 16 (12), pp.7848 - 7858. ⟨10.1109/TWC.2017.2754259⟩. ⟨hal-01589268⟩

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