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Publications (4)4.7 Total impact

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    ABSTRACT: In this paper, we describe a new 1/4 rate robust modulation techniques for Enhanced-xVSB system which is fully backward compatible with ATSC 8-VSB standard. 1/4 rate mode Enhanced-xVSB system provides broadcasters with a wide choice of trade-offs of data rate vs amount of robustness of enhanced data for pedestrian/mobile services. Lab test results of proposed Enhanced-xVSB 1/4 rate mode robust stream is a significantly improved multipath as well as AWGN reception performance for Enhanced-xVSB receiver. We suggest an Enhanced-xVSB terrestrial broadcasting system for ATSC HDTV and pedestrian/portable TV simultaneous broadcasting service providing
    No preview · Article · Jul 2007 · IEEE Transactions on Broadcasting
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    ABSTRACT: In this paper, we describe a new 1/4 rate robust modulation techniques for enhanced-xVSB system which is fully backward compatible with ATSC 8-VSB standard. 1/4 rate mode enhanced-xVSB system provides broadcasters with a wide choice of trade-offs of data rate vs amount of robustness of enhanced data for pedestrian/mobile services. Lab test results of proposed enhanced-xVSB 1/4 rate mode robust stream is a significantly improved multipath as well as AWGN reception performance for enhanced-xVSB receiver. We suggest an enhanced-xVSB terrestrial broadcasting system for ATSC HDTV and pedestrian/portable TV simultaneous broadcasting service provisioning.
    No preview · Conference Paper · Mar 2007
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    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.
    Full-text · Article · Jul 2006 · IEEE Transactions on Broadcasting
  • Seung-Won Kim · Kum-Ran Ji · Jae-Young Lee · Sung-Hoon Kim · Soo-In Lee
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    ABSTRACT: 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.
    No preview · Article · Jun 2005 · IEEE Transactions on Consumer Electronics