RFDVB-T2 vs. ATSC 3.0: A Detailed Technical Comparison
atsc 3.0
dvb t2
digital tv
broadcasting standard
tv technology
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This article provides a detailed comparison between DVB-T2 and ATSC 3.0, highlighting the key differences between these two digital television broadcasting standards. The following table summarizes the specifications of each.
DVB-T2 vs. ATSC 3.0 Specifications
| Specifications | DVB-T2 | ATSC 3.0 |
|---|---|---|
| Outer code | BCH | BCH, CRC, None |
| LDPC size | 16200, 64800 bits | 16200, 64800 bits |
| LDPC code rate | 1/2 , 3/5, 2/3, 3/4, 4/5, 5/6 | {2,3,4,5,6,7,8,9,10,11,12,13}/15 |
| Modulation | QPSK, 16QAM, 64QAM, 256QAM | QPSK, 2D-16NUC, 2D-64NUC, 2D-256NUC, 1D-1024NUC, 1D-4096 NUC (non uniform constellation) |
| Rotated constellation | yes | no |
| Time interleaver | block interleaver CI (S-PLP), hybrid BI + CI (M-PLP) | TI size (cells) 219, 220 (QPSK) |
| TI size (cells) | 219 + 215 | 219 , 220 (QPSK) |
| Multiplexing | TDM | LDM, FDM, TDM |
| Max. frame size | 250 ms | 5 sec |
| MISO (Multiple Input Single Output) | Alamouti (twice pilot overhead) | TDCFS (same pilot overhead) |
| FFT size | 1K, 2K, 4K, 8K, 16K, 32K | 8K, 16K, 32K |
| Guard Interval | 1/128, 1/32, 1/16, 19/256, 1/8, 19/128, 1/4 | 3/512, 3/256, 1/64, 3/128, 1/32, 3/64, 1/16, 19/256, 3/32, 57/512, 3/16, 1/8, 19/128, 1/4 (symbol and time aligned frames ) |
| Multiple PLPs per service | No ( 1 common PLP) | Yes (upto 4) |
| Link layer encapsulation | MPEG-2 TS | ALP |
| Main transport protocol | TS | IP |
| minimum/maximum data rate over 6MHz BW | 5.6 Mbps/ 38 Mbps | 1 Mbps/ 57 Mbps |
| SNR operating range | From 1 dB to 22 dB | From -6.2 dB to +32 dB |
| entry point to the system | P1 (7 bits, -5dB SNR @ AGWN) | Bootstrap (24 bits, -9.5 dB SNR @ AWGN) |
| Channel Bonding | No | Yes (two RF channels) |
| MIMO | No | Yes, (not mandatory for the receivers) |
This comparison provides a clear understanding of the features of DVB-T2 and its successor, ATSC 3.0.
ATSC 3.0 Basics
ATSC 3.0 represents a significant advancement in television technology.
