Adaptive Broadcast Techniques for Digital Terrestrial Television

Peter Bagot, Andrew Nix, Mark Beach, Joe McGeehan, Peter Moss

Research output: Contribution to conferenceConference Paper

Abstract

Abstract—Digital TV broadcast is available in the vast majority of countries. It has now completely replaced analogue as the main delivery system for terrestrial
television in the UK. A digital television broadcast system offers many improvements over analogue transmission. It allows the delivery of a greater number of TV channels into the home by multiplexing multiple channels onto
the same transmission frequency. If the signal is successfully received and decoded, it can guarantee a set picture quality, as digital is more resilient to noise and interference than analogue. This can be exploited further by reducing the total broadcast power at the transmit towers, something that has already been achieved as part of the digital dividend. This research explores whether the
broadcast power could be decreased further, or if more users could be covered using the same broadcast power, thus improving energy efficiency. Techniques developed to improve mobile communications, such as beamforming and channel state information (CSI) could be deployed in broadcast scenarios. If the broadcast towers had accurate CSI, then the entire broadcast system could be made more adaptive as beamforming techniques could be used to steer power to regions where coverage is needed. CSI would come via feedback from television equipment with channel monitoring devices supplying a relay network that operates over the internet.
Original languageEnglish
Number of pages6
Publication statusPublished - Feb 2014
EventCOST IC1004 - 9th Meeting of European Cooperation in the Field of Scientific and Technical Research - Ferrara, Italy
Duration: 5 Feb 20147 Feb 2014

Conference

ConferenceCOST IC1004 - 9th Meeting of European Cooperation in the Field of Scientific and Technical Research
CountryItaly
CityFerrara
Period5/02/147/02/14

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