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            <title xml:lang="en">DVB-T2 Technology and the Evolution of the DVB-X2 Standard Family</title>
            <title xml:lang="en" type="sub">Technical Insights into DVB-T2 and the Emerging DVB-X2 Series of Standards</title>
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                <term xml:lang="en">Modulation and Coding</term>
                <term xml:lang="en">Terrestrial Transmission</term>
                <term xml:lang="en">Next-Generation Standards</term>
                <term xml:lang="en">256-QAM</term>
                <term xml:lang="en">LDPC Coding</term>
                <term xml:lang="en">Spectral Efficiency</term>
                <term xml:lang="en">Digital Video Broadcasting</term>
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              <p>The Digital Video Broadcasting – Second Generation Terrestrial (DVB-T2) standard represents a significant improvement over DVB-T, achieving up to 50% higher spectral efficiency through advanced signal processing and error correction techniques. This paper investigates the architecture and performance metrics of DVB-T2 and examines its relationship to the emerging DVB-X2 class of standards, which includes DVB-S2X, DVB-T2X, and DVB-NGH. Using simulation and field measurement data, DVB-T2 demonstrates a throughput of 40.2 Mbps within an 8 MHz channel under 256-QAM modulation and LDPC/BCH coding at a code rate of 3/4, compared to 27 Mbps in DVB-T under similar conditions. The use of Multiple-PLP (Physical Layer Pipes) and MISO (Multiple Input Single Output) configurations enhances robustness in mobile and fixed reception scenarios. Further analysis of DVB-X2 standards shows improvements of up to 15–30% efficiency over DVB-T2, supporting UHD (4K/8K) broadcasting and hybrid IP-based delivery. The results confirm that the DVB-X2 family provides a scalable framework for next-generation broadcasting, optimized for both terrestrial and satellite environments, ensuring efficient spectrum utilization, enhanced quality of service, and backward compatibility with existing DVB systems.</p>
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