This paper proposes an improved decoding scheme of emergency alert wake-up bits in Advanced Television Systems Committee (ATSC) 3.0. When a broadcast service is being provided, a bootstrap signal of ATSC 3.0 includes the minimal essential information that does not change at least for two consecutive physical layer frames. Then, the received signal can be further assumed to be binary modulated according to each wake-up bit, so as to achieve the improved decoding performance as well as reduced decoding complexity. The simulation results show that the proposed decoding scheme of wake-up bits can obtain signal-to-noise ratio (SNR) gains of approximately 1.6 dB and 2.5 dB at bit error rate (BER) of 10−4 compared to the conventional decoding scheme under fixed and mobile reception environments, respectively. In addition, the analysis on the computational complexity of the proposed decoding scheme is provided.

中文翻译：

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ATSC 3.0 中紧急警报唤醒位的改进解码方案

本文在高级电视系统委员会 (ATSC) 3.0 中提出了一种改进的紧急警报唤醒位解码方案。当提供广播服务时，ATSC 3.0 的引导信号包括最少的基本信息，该信息至少在两个连续的物理层帧内不会改变。然后，可以进一步假设接收信号根据每个唤醒位进行二进制调制，以达到提高解码性能的同时降低解码复杂度。仿真结果表明，与传统解码方案相比，所提出的唤醒位解码方案在误码率 (BER) 为 10−4 时可以获得大约 1.6 dB 和 2.5 dB 的信噪比 (SNR) 增益分别在固定和移动接收环境下。此外，