Modulation and coding for ATSC 3.0

Bit-Interleaved Coded Modulation (BICM) for ATSC 3.0

“…This paper describes the coding, modulation and bit interleaving blocks of the BICM module of ATSC 3.0, and compares its performance with the ATSC A/53 and DVB-T2 standards. A summary version of the paper was presented in [13]. The rest of the paper is structured as follows.…”

LDM Versus FDM/TDM for Unequal Error Protection in Terrestrial Broadcasting Systems: An Information-Theoretic View

“…The loss is observed when the mobile SNR, S m , is close to the fixed SNR, S f , that is, when the UEP ratio is small. Nevertheless, state-of-the art terrestrial broadcasting systems currently perform very close to the ideal limit, about 1 dB in AWGN channel [15]; and, although the gap to channel capacity is larger for Rayleigh channel [22], next-generation systems will further reduce the gap, including very low SNR values [18]. Hence, a figure of λ m = λ f = −1 dB may be realistic for both layers.…”

“…Note that, in coded modulation schemes such as Bit Interleaved Coded Modulation (BICM), this gap depends not only on the practical FEC codes used, but also on the bit interleavers and modulations. For instance, non-uniform constellations have been recently proposed for next-generation terrestrial broadcasting to reduce the gap to the Shannon limit, see, e.g., [18]. As a final remark, the implementation margin due to non-ideal channel estimation and synchronization may not be included in λ m and λ f , but is instead addressed by the broadcaster by increasing the operating SNR, thus reducing the coverage for the desired transmission rate or increasing the transmit power [10].…”

Broadcast television spectrum incentive auctions in the u.s.: trends, challenges, and opportunities

“…A primary goal is to simultaneously reach both fixed and portable devices. It is expected that ATSC 3.0 will allow transmitting more than 30 Mb/s in a 6 MHz RF channel for the same operation point of ATSC 1.0 (15 dB signal-to-noise ratio at 19.4 Mb/s) [5]. Therefore, the combination of ATSC 3.0 with the new video codec HEVC (High-Efficiency Video Codec), which, theoretically, provides up to four times the compression gain with respect to MPEG-2 video coding (two times with respect to MPEG-4/AVC), and its one-to-everyone broadcast architecture results in the most spectrally efficient mass media content delivery system.…”