A new system concept for Digital Terrestrial TV (DTT), called “WiB”, is presented, where potentially all frequencies within the UHF band are used on all transmitter (TX) sites (i.e. reuse-1). Interference, especially from neighbouring transmitters operating on the same frequency and transmitting different information, is handled by a combination of a robust transmission mode, directional discrimination of the receiving antenna and interference cancellation methods. With this approach DTT may be transmitted as a single wideband signal, covering potentially the entire UHF band, from a single wideband transmitter per TX site. Thanks to a higher spectrum utilisation the approach allows for a dramatic reduction in fundamental power/cost and about 37-60% capacity increase for the same coverage as with current DTT. High speed mobile reception as well as fine granularity local services would also be supported, without loss of capacity. The presentation also outlines further possible developments of WiB, e.g. doubling the capacity via cross-polar Multiple In Multiple Out (MIMO), backward-compatible with existing receiving antennas, and adding a second, WiB-mobile, Layer Division Multiplexing (LDM) layer within the same spectrum, either as mobile broadcast or as mobile broadband.
Finally, the presentation describes a new WiB white space concept for low-cost introduction of fixed (wireless) broadband via existing High Towers, keeping existing DTT services unaffected, using highly sectorised antennas, opposite polarisation, LDM and wide bandwidth. In later steps existing DTT could be replaced by WiB-DTT using reuse-1 superimposed on WiB-Broadband (possibly further developed into WiB-Mobile), allowing both broadcast and broadband to use potentially the full UHF spectrum.
Erik Stare, Teracom
Erik Stare received a M.S.E.E. in 1984 from KTH in Stockholm. Since 1992 he is with Teracom focusing on R&D related to various aspects of DTT. He has been deeply involved in the development and standardisation of the broadcast systems DVB-T, DVB-H, DVB-T2, DVB-NGH, DAB+ and ATSC 3.0. He is the inventor of MPE-FEC in DVB-H, Time Frequency Slicing in DVB-T2 & DVB-NGH and the new WiB system concept. He has participated in a number of European R&D projects under the ACTS, IST and CELTIC programmes. His current work focuses on next-generation terrestrial broadcast/telecom systems, in particular based on the WiB concept (Wideband reuse-1). In September 2016 he received (together with co-authors Jordi Giménez and Peter Klenner) the IBC Best Conference Paper Award for a paper about WiB.
Coffee and sweets will be served.
Link to webcast: https://connect.sunet.se/fridayseminar