Spatial characterization of propagation channels for terahertz band

Aghoutane, Bilal; Ghzaoui, Mohammed El; Faylali, Hanan El

doi:10.1007/s42452-021-04262-8

Cited by 22 publications

(14 citation statements)

References 20 publications

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“…For this, several techniques are considered, including the rise in frequency towards the millimeter wave spectrum (Terahertz frequency bands). This approach is the basis of this contribution which presents the results of the characterization and statistical modeling of the THz propagation channel [3][4][5][6][7]. A radioelectric transmission system makes it possible to transform an electrical signal emitted x(t) into an electrical signal received y(t) by means of electromagnetic waves OEM.…”

Section: Introductionmentioning

confidence: 99%

Investigation of Radio Channel Characterization in Terahertz Range

Elaage¹,

Ghzaoui²,

Mrani³

et al. 2022

J. Nano- Electron. Phys.

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To determine the performance of a wireless system, channel characterization must be carried out. In fact, in a wireless system, the propagation of an electromagnetic wave in space is of particular importance. For this reason, it is necessary to study the correctness of this channel before starting to work on it and implementing it in a communication system. It is therefore essential to have knowledge of the mechanisms involved in the propagation channel and of its interactions with the environment in order to be able to predict the chances and conditions for establishing a radio link between a transmitter and a receiver. In this work, we propose some strategies to model the transmission channel in the THz band. Indeed, before we can evaluate a transition system over wireless system, we have to model the propagation channel. First, we present the main tools allowing the modelling of the channel in the THz frequency range, which is considered a key new technology to meet the growing demand for higher speed wireless communications, as well as its impact on radio systems. In this paper, we propose a channel model for a wireless system working in the THz band. Besides, we propose some strategies to model the entire system as well as the propagation channel. We also simulate the proposed channel model. The simulation results show that the proposed system can be considered as an example for evaluating the performance of a communication chain based on a wireless system in the THz bands.

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Section: Introductionmentioning

confidence: 99%

Investigation of Radio Channel Characterization in Terahertz Range

Elaage¹,

Ghzaoui²,

Mrani³

et al. 2022

J. Nano- Electron. Phys.

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“…Much research carried out in literature to present the interest of THz technology. Authors [13] have proposed a channel model for THz bands. They focused on the multipath effect produced in the THz propagation channel in [14] a data transmission technique for THz system is presented.…”

Section: Introductionmentioning

confidence: 99%

Analysis and Design of an Ultra-Wideband Non-coherent Transceiver for UWB Pulse Radio Communications in the Terahertz Band

Hamid¹,

Ghzaoui²,

Das³

2022

J. Nano- Electron. Phys.

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Interest in terahertz (THz) technology is related to various applications such as object detection, spectroscopy, security, and telecommunications. However, one of the challenges of THz technology is the implementation of effective communication between the transmitter and the receiver. Modulation technique like orthogonal frequency division multiplexing (OFDM) is already used in the THz band. However, the most widely used transmission method, on-off keying (OOK) scheme, presents several problems in highrate data detection. In fact, the purpose of this work is to design in Matlab Simulink a transmission chain based on the energy detector, frequently used for transmitting radio pulses, since applications focused on the ultra-wide band are much less complex to implement and consume little power. In this regard, we present a delay-modified energy detector that will allow the sample to optimally select the maximum energy levels corresponding to the sending of logical bit 1 and logic bit 0. And we have chosen an energy detector with OOK modulation in the additive white Gaussian noise (AWGN) channel. The proposed system has a low cost, high performance and low power consumption, so it can be effectively used for a THz system.

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“…Several works have been developed in the literature to propose a THz channel model. [3][4][5][6] Fu et al have proposed in Reference 3 a statistical model for THz channel. The work carried out in Reference 3 was based on existing statistical models to simulate the behavior of the channel.…”

Section: Introductionmentioning

confidence: 99%

Performance analysis of multiband on–off keying pulse modulation with noncoherent receiver for THz applications

Ghzaoui

Mestoui

Hmamou

et al. 2021

Micro & Optical Tech Letters

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The choice of modulation and waveform is a crucial step for generating a radio signal and designing a wireless communication system. Toward this end, a compromise between low-complexity and high-data rate had to be considered when selecting the appropriate transmission technique. Indeed, pulse-based modulation can be a good candidate for THz system due to its simplicity and it supports very high data over short distance. In this work, we proposed a solution based on multiband on-off keying (MB-OOK) modulation using a noncoherent receiver. A deferential MB-OOK transceiver has been evaluated over a THz channel model. A data rate of 54.24 Gbps is achieved with a BER of 10-3 when the distance between transmitter and receiver less than 35 m. Furthermore, the proposed system offers a good compromise between throughput, consumption, and complexity, which allow it to be a good candidate for THz applications.

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Spatial characterization of propagation channels for terahertz band

Cited by 22 publications

References 20 publications

Investigation of Radio Channel Characterization in Terahertz Range

Investigation of Radio Channel Characterization in Terahertz Range

Analysis and Design of an Ultra-Wideband Non-coherent Transceiver for UWB Pulse Radio Communications in the Terahertz Band

Performance analysis of multiband on–off keying pulse modulation with noncoherent receiver for THz applications

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