New MIMO Antenna with Filtration for the Future Multiuser Systems in Satellite Communications

Essid, Chaker; Abdelhamid, Chafai; Almalki, Faris A.; Ali, Obaid; Sakli, Hèdi

doi:10.1155/2022/1040333

Cited by 10 publications

(3 citation statements)

References 31 publications

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“…Our target was to control the surface current on the antenna element by controlling the real impedance at a certain point, in which most of the charge accumulation could accrue [20]. It is well known from the literature that such an accumulation of electric chargers happens at the meander lines corners [21]. Therefore, it is very wise to consider these locations for introducing the LDR switches.…”

Section: Antenna Reconfiguration Studymentioning

confidence: 99%

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Miniaturized Antenna Array-Based Novel Metamaterial Technology for Reconfigurable MIMO Systems

Hussein

Atasoy

Elwi³

2023

Sensors

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In this work, a highly miniaturized microstrip antenna array based on two elements is proposed for multiple inputs multiple outputs (MIMO) application systems at sub-6 GHz frequency bands. The antenna is structured from a meander line in conjugate with an interdigital capacitor when excited through the monopole basic antenna. The proposed antenna elements are separated with a Minkowski factor-shaped metamaterial (MTM) column to achieve a separation distance (D) of 0.08λ at 3 GHz when printed on an FR-4 substrate. Later on, the antenna performance in terms of bandwidth and gain is controlled using a photonic process based on optical active switches based on light-dependent resistances (LDR). Therefore, the reconfiguration complexity with such a technique can be eliminated significantly without the need for a biasing circuit. The antenna design was conducted through several parametric studies to arrive at the optimal design that realizes the frequency bandwidth between 3 and 5.5 GHz with a maximum gain of about 4.5 dBi when all LDR terminals are off. For a wireless channel performance study-based massive MIMO environment, the proposed antenna is suitable to be configured in arrays of 64 × 64 elements. From this study, it was found the maximum bit error rate (BER) does not exceed 0.15 with a channel capacity (CC) of 2 Gbps. For validation, the antenna was fabricated based on two elements and tested experimentally. Finally, it was revealed that the measured results agree very well with simulations after comparing the theoretical calculations with the measured data.

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Section: Antenna Reconfiguration Studymentioning

confidence: 99%

“…A design of a solar panel integrated 3D MIMO antenna array for 5G self-powered communication systems was proposed in [20]. For frequencies between 3.4 and 3.8 GHz, a MIMO antenna array was developed with a partial ground plane [21]. A wide-band antenna array based on MTM was invented to cover the frequency band in 5G systems [22].…”

Section: Introductionmentioning

confidence: 99%

Miniaturized Antenna Array-Based Novel Metamaterial Technology for Reconfigurable MIMO Systems

Hussein

Atasoy

Elwi³

2023

Sensors

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“…These technologies can integrate with CubeSat and deliver wide range of smart applications. Figure 1 demonstrates Cubesat wide range of applications that around topics like telecommunications, science space, and earth observations [4][5][6] .…”

Section: Introductionmentioning

confidence: 99%

Developing CubeSat and AI Framework for Crowd Management Case of Short-Term Large-Scale Events

Almalki¹,

Mutawi²,

Turkistani³

et al. 2022

Adv. sci. technol. eng. syst. j.

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Many consequences can be resulted in mismanagement of crowd, which might get people injured or even lose their lives. Thus, crowd management helps in controlling overcrowded areas during events, and allowing authorities to monitor, manage and reduce incidents. Space science and technology have made huge leap in crowd management, let alone when this technology integrated with Artificial intelligent. Hence, space-based systems like CubeSats are seen as the best approach to help monitoring and providing various reasons. For instance, wide coverage footprint, collect specific area data simultaneously, assist in aerial photography, as well as providing wide range of wireless communications services that can integrate appropriately with AI and wearable devices. This work aims to design a CubeSat vehicle to manage crowds during short-term, large-scale events. The proposed system is, also, coupled with AI framework along with the camera and wearable devices to monitor the crowds' performance continuously by relying on two aspects: Firstly, aerial imaging (e.g., photos and videos). Secondly, using wearable devices that can be worn to monitor vital signs of crowds. Moreover, the proposed system can independently relieve congestion, as well as notify the ground controller of all problems to take further actions. The obtained results confirm that the proposed innovative solution is for crowd management with accuracy reached 95%, and MSE equal to 0.049.

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A serious gaming approach for optimization of energy allocation in CubeSats

Almalki

Angelides

2023

Multimed Tools Appl

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Energy consumption remains an open challenge in aerial systems such as CubeSats and therefore optimization of its allocation is a top priority for maximizing operational capacity. Our research review reveals a plethora of approaches for optimization of energy allocation and all achieving varying degrees of success and not without any compromises. In this paper, we exploit the use of serious gaming in a novel energy allocation algorithm that aims at minimizing energy consumption to maximize the utilities of both CubeSats and terrestrial sensors. To demonstrate this, we use Stackelberg for serious gaming and standalone topology for CubeSat configuration. The experimental results show that the use of a Stackelberg game approach for optimization has led to reduction in the required transmission energy in sensors, an improved link performance between the CubeSat and ground sensors, and an increase in network lifetime and performance without resorting into sensor power enhancements or other external power sources. The overall average operational capacity improvement predictions range between 22 to 27% across all performance indicators of energy efficiency across RF chains of link budgets.

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New MIMO Antenna with Filtration for the Future Multiuser Systems in Satellite Communications

Cited by 10 publications

References 31 publications

Miniaturized Antenna Array-Based Novel Metamaterial Technology for Reconfigurable MIMO Systems

Miniaturized Antenna Array-Based Novel Metamaterial Technology for Reconfigurable MIMO Systems

Developing CubeSat and AI Framework for Crowd Management Case of Short-Term Large-Scale Events

A serious gaming approach for optimization of energy allocation in CubeSats

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