single-carrier system. In coded orthogonal frequency-division multiplexing (COFDM), forward error correction (convolutional coding) and time/frequency interleaving...

is used primarily in North America; in contrast, the DVB-T standard uses COFDM. A modulation method specifies how the radio signal fluctuates to convey...

broadcasting, self-interference cancellation is facilitated by the OFDM or COFDM modulation method. OFDM uses a large number of slow low-bandwidth modulators...

designator for COFDM is W7D. The W7D comes from Paragraph 40 of the November 13, 2002, ET Docket 01-75 R&O. It is only coincidence that the QAM and COFDM emission...

transport stream, using coded orthogonal frequency-division multiplexing (COFDM or OFDM) modulation. It is also the format widely used worldwide (including...

Radio modulation AM FM COFDM Frequency allocations LW (LF) MW (MF) SW (HF) VHF (low / mid / high) L band (UHF) Digital systems CAM-D DAB/DAB+ DRM/DRM+...

and TiMi 3. DVB-T uses coded orthogonal frequency division multiplexing (COFDM), which uses as many as 8000 independent carriers, each transmitting data...

Philips since 1989. This codec incorporated into a broadcasting system using COFDM modulation was demonstrated on air and in the field with Radio Canada and...

spectral masks for the same purpose. Many digital modulation methods such as COFDM use the electromagnetic spectrum very efficiently, allowing for a very tight...

television may corrupt the signal beyond use for digital television. 8VSB, COFDM, and other modulation schemes seek to correct this. Ghost-canceling reference...