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Enhanced-xVSB system development for mobile/portable reception

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5 Author(s)
Seung-Won Kim ; Electron. & Telecommun. Res. Inst., South Korea ; Kum-Ran Ji ; Jae-Young Lee ; Sung-Hoon Kim
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This paper describes the advanced dual stream system for improving mobile/pedestrian reception performance to the ATSC DTV 8-VSB transmission standard. The proposed system can transmit a mixture of normal (8-VSB) stream and enhanced (robust) stream. The robust stream has a lower threshold of visibility (TOV) compared to the standard stream, and legacy receivers ignore the robust packets. Thus, the 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. The proposed system has been tested in the lab, and the testing results are shown in this paper.

Published in:

IEEE Transactions on Consumer Electronics  (Volume:51 ,  Issue: 2 )