In this thesis, OFDM (Orthogonal Frequency Division Multiplexing) modulation techniques and Advanced optimization techniques such as beamforming and Massive MIMO were analyzed in the context of 5G technology, are also explored to improve spectral efficiency, quality of service and network coverage in the context of 5G. In addition, performance comparisons between OFDM-based systems, in different scenarios, are presented, with an analysis of the results obtained, thus contributing to a deeper understanding of its potential and limitations in this advanced mobile communication environment. The next simulation evaluates the Bit Error Rate (BER) and Mean Squared Error (MSE) performance across different SNR levels. The system applies IDFT, cyclic prefixing, and noise addition, followed by MIMO channel modeling. After MMSE equalization, the results are analyzed through constellation diagrams and 3D radiation patterns of the antennas.
In questa tesi, sono state analizzate le tecniche di modulazione OFDM (Orthogonal Frequency Division Multiplexing) e avanzate tecniche di ottimizzazione, come il beamforming e il Massive MIMO, nel contesto della tecnologia 5G. Vengono inoltre esplorate strategie per migliorare l'efficienza spettrale, la qualità del servizio e la copertura della rete. In aggiunta, vengono presentati confronti sulle prestazioni dei sistemi basati su OFDM in diversi scenari, con un'analisi dei risultati ottenuti, contribuendo così a una comprensione più approfondita del loro potenziale e delle loro limitazioni in questo avanzato ambiente di comunicazione mobile. La successiva simulazione valuta le prestazioni del Bit Error Rate (BER) e del Mean Squared Error (MSE) a diversi livelli di SNR. Il sistema applica la trasformata IDFT, il prefisso ciclico e l'aggiunta di rumore, seguiti dalla modellazione del canale MIMO. Dopo l'equalizzazione MMSE, i risultati vengono analizzati tramite diagrammi di costellazione e pattern di radiazione 3D delle antenne.
TECHNOLOGIES FOR 5G NETWORKS AND THE EXPLORATION OF THE 5G OFDM-MIMO TECHNIQUE
LEOCI, GIOVANNI
2023/2024
Abstract
In this thesis, OFDM (Orthogonal Frequency Division Multiplexing) modulation techniques and Advanced optimization techniques such as beamforming and Massive MIMO were analyzed in the context of 5G technology, are also explored to improve spectral efficiency, quality of service and network coverage in the context of 5G. In addition, performance comparisons between OFDM-based systems, in different scenarios, are presented, with an analysis of the results obtained, thus contributing to a deeper understanding of its potential and limitations in this advanced mobile communication environment. The next simulation evaluates the Bit Error Rate (BER) and Mean Squared Error (MSE) performance across different SNR levels. The system applies IDFT, cyclic prefixing, and noise addition, followed by MIMO channel modeling. After MMSE equalization, the results are analyzed through constellation diagrams and 3D radiation patterns of the antennas.| File | Dimensione | Formato | |
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Tesi LEOCI_eng-2.pdf
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Descrizione: In this thesis, OFDM (Orthogonal Frequency Division Multiplexing) modulation techniques and Advanced optimization techniques such as beamforming and Massive MIMO were analyzed in the context of 5G technology
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1.67 MB
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1.67 MB | Adobe PDF |
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https://hdl.handle.net/20.500.14253/67038