Abstract
Digital Terrestrial Television (DTT) in the UK has been a great success with high levels of viewer take up. But DTT is severely capacity constrained, limiting opportunities for the continued growth of the platform. However, the likely emergence of revised set top boxes to receive anticipated new services, such as High Definition (HD), allows modifications to be considered to the basic delivery system.
The experimental hardware described here demonstrates a DTT modulation system with much greater spectral efficiency and/or robustness. It employs dual polarised transmit and receive antennas to form a 2-by-2 Multiple Input, Multiple Output (MIMO) system offering up to twice the throughput of conventional DVB-T. To achieve this, two DVB-T like signals, each with independent data, are transmitted in a single 8MHz RF channel.
Results from laboratory testing are presented along with data from field trials that provide an insight into the viability of such a system.
White Paper copyright
© BBC. All rights reserved. Except as provided below, no part of a White Paper may be reproduced in any material form (including photocopying or storing it in any medium by electronic means) without the prior written permission of BBC Research except in accordance with the provisions of the (UK) Copyright, Designs and Patents Act 1988.
The BBC grants permission to individuals and organisations to make copies of any White Paper as a complete document (including the copyright notice) for their own internal use. No copies may be published, distributed or made available to third parties whether by paper, electronic or other means without the BBC's prior written permission.
Authors
Search by Tag:
- Tagged with PublicationsPublications
