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Enhanced-xVSB System Development for Improving ATSC Terrestrial DTV Transmission Standard
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- Authors
- Sung Hoon Kim, Jae Young Lee, Seung Won Kim, Soo In Lee, Chie Teuk Ahn, Ki Doo Kim
- Issue Date
- 2006-06
- Citation
- IEEE Transactions on Broadcasting, v.52, no.2, pp.129-136
- ISSN
- 0018-9316
- Publisher
- IEEE
- Language
- English
- Type
- Journal Article
- Abstract
- This paper describes advanced dual stream system for improving mobile/pedestrian reception performance to the ATSC DTV 8-VSB transmission standard. E-xVSB system can transmit a mixture of normal (8-VSB) stream and enhanced (robust) stream. The robust stream has a higher threshold of visibility (TOV) compared to the standard stream, and legacy receivers ignore the robust packets. Thus, Enhanced-xVSB system is fully backward compatible with a current ATSC standard. For more robust transmission support, E-xVSB system adopts a reduced constellation method as well as enhanced trellis-coded modulation scheme. E-xVSB system supports a variety of enhanced modulation schemes: Pseudo-2VSB, Enhanced-4VSB, modified Enhanced-8VSB and Hybrid-VSB. Proposed system has been tested in the Lab, and the testing results are shown in this paper. © 2006 IEEE.
- KSP Keywords
- Backward Compatible, Modulation scheme, Robust transmission, Trellis-coded modulation(TCM), system development