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Modeling And Measurement of Multiple Human Body Shadowing at 28 Ghz.

Diğer Başlık: 28 Ghz’de Çoklu İnsan Vücudu Gölgelemesinin Ölçülmesi Ve Modellenmesi

Oluşturulma Tarihi: 08-12-2020

Niteleme Bilgileri

Tür: Tez

Alt Tür: Yüksek Lisans Tezi

Yayınlanma Durumu: Yayınlanmamış

Dosya Biçimi: PDF

Dil: İngilizce

Konu(lar): TEKNOLOJİ, Elektrik mühendisliği. Elektronik. Nükleer mühendislik,

Yazar(lar): Karataş, Gökhan (Yazar),

Emeği Geçen(ler): Kara, Ali (Tez Danışmanı),


Yayın Tarihi: 13-08-2020


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Anahtar Kelimeler

5G, millimeter-wave, ray-tracing, double knife-edge diffraction, multiple human body blockage, human body shadowing, geometric theory of diffraction, human body models.


Özet

This thesis represents the simplified human body models and their comparison with measurement results to characterize the effects of the scattering human bodies near the indoor link. The studies were performed while the human body was entirely blocking the link between the transmitter to the receiver. The measurements were conducted at 28 GHz., which has great importance for the fifth-generation (5G) wireless systems. Additionally, the theoretical background of the human body modeling and mechanisms of wave propagation were presented with other required concepts to comprehend the studies briefly. The effects of the scattering human bodies were simulated using models such as double knife-edge diffraction (DKED) and geometric theory of diffraction (GTD) through ray-tracing. These models were exploited from underlying wave propagation mechanisms such as reflection and diffraction during the simulations. Moreover, the simulations were performed for scenarios; one and two human bodies as scattering objects while the link is fully blocked by another human body separately. Furthermore, these simulations were compared with the corresponding laboratory measurements, and promising results were obtained. The simplified human body models are compatible with the measurement results. It is considered that these models will be rewarding while designing the wireless channel for millimeter-wave (mmWave). The new studies within the frame of this thesis could be developed for the future allocations in mmWave bands. Besides, simplified models could be extended to characterize the effects of multiple human bodies for different deployments.


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