DVB-T2 Thresholds for Portable Indoor Reception Scenarios Respecting IQ-Errors

2018 41st International Conference on Telecommunications and Signal Processing (TSP) Pub Date : 2018-07-01 DOI:10.1109/TSP.2018.8441446

L. Polak, T. Kratochvil

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Abstract

The second generation digital terrestrial video broadcasting system (DVB-T2), compared to its predecessor, has extended options of system configurations to broadcast TV services for different transmission scenarios. This paper, according to the report ITU-R BT.2254-2, presents minimal carrier-to-noise (C/N) values for the correct reception of DVB-T2 signal, fulfilling quasi-error-free (QEF) condition, under portable indoor reception scenarios. The influence of different code rates (CRs), M-QAM modulations, guard interval (GI) lengths and pilot patterns (PPs) on the DVB-T2 performance is studied. In addition, this study takes into account In-phase and Quadrature (IQ) errors, which can occur in the Orthogonal Frequency Division Multiplexing (OFDM) modulator. All the theory-based results are confirmed by extensive laboratory measurements. The obtained results extend the ITU-R BT.224-2 report with a new set of C/N values for DVB-T2 signals under different portable indoor reception scenarios, which can be used by the broadcasters for DVB-T2 network planning.

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考虑智商误差的便携式室内接收场景DVB-T2阈值

第二代数码地面视像广播系统(DVB-T2)较上一代系统扩展了系统配置的选择，以提供不同传输情况下的广播电视服务。本文根据ITU-R BT.2254-2报告，提出了在便携式室内接收场景下，正确接收DVB-T2信号，满足准无差错(QEF)条件的最小载波噪声(C/N)值。研究了不同码率(CRs)、M-QAM调制、保护间隔(GI)长度和导频模式(PPs)对DVB-T2性能的影响。此外，本研究还考虑了正交频分复用(OFDM)调制器中可能出现的同相和正交(IQ)误差。所有基于理论的结果都被广泛的实验室测量所证实。所得结果对ITU-R BT.224-2报告进行了扩展，为不同便携式室内接收场景下DVB-T2信号提供了一套新的C/N值，可供广播公司用于DVB-T2网络规划。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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2018 41st International Conference on Telecommunications and Signal Processing (TSP)

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