Advanced Preamble Transmit Diversity of Polarized DVB-T2 MISO System Using Hybrid Differential Modulation

作者：Kui Zifeng; Han Jae Shin; Choi Jeong Min; Jeon Sungho; Park Joosung; Oh Youngho; Seo Jong Soo^*

来源：IEEE Transactions on Broadcasting, 2015, 61(4): 723-728.

DOI：10.1109/TBC.2015.2465142

• Differential modulation
• preamble
• P1 symbol of DVB-T2
• space time block code
• transmit diversity

The digital video broadcasting-second generation terrestrial (DVB-T2) standard has adopted a preamble called P1 symbol to achieve the fast time and frequency synchronization. The P1 symbol also carries basic transmission parameters of DVB-T2 system, such as fast Fourier transform size, guard interval size and transmission type-single input single output or multiple input single output, etc. In this paper, we propose an improved preamble which is modulated by a novel hybrid differential modulation scheme that can provide transmit diversity gain to achieve the same performance of coherent transmission. The proposed preamble has demonstrated a significantly improved signaling error rate performance over various channel conditions compared to the conventional P1 symbol in DVB-T2.

• 出版日期2015-12