ISDB-S
The main reason that the Japanese Association of Radio Industries and Business (ARIB) developed the ISDB-S single-carrier standard was to offer HDTV capability, interactivity and spectrum efficiency. In 2000, ISDB-S (ARIB STD-B20) was implemented by the network operator NHK.
In comparison to DVB-S, the capabilities that were introduced included primarily higher-order modulation, error correction and time-domain multiplexing. With the new modulation mode named "Trellis coded 8-phase phase shift keying" (TC8PSK), data rates of typically 52.2 Mbit/s are possible in a transmission channel that has a width of 34.5 MHz.
Key Parameters
| ISDB-S | |
|---|---|
| Frequency | 11.7 GHz
- 12.2
GHz
(BS) 12.2 GHz - 12.75 GHz (wideband CS) |
| Forward Error Correction |
inner: Trellis, convolutional coders outer: RS(204,188) |
| Modulation | TC8PSK, QPSK, BPSK (hierarchical) |
| Baseband |
data stream: MPEG-2 TS video coding: MPEG-2 video audio coding: MPEG-2 audio |
