Sung Ik Park

Publications182
h-index23
Citations1,749
Highly Influential Citations74
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Layered-Division-Multiplexing: Theory and Practice
TLDR
A detailed overview of the fundamental advantages of the LDM over the traditional TDM/FDM systems are analyzed from information theory point of view, and the efficient implementation of LDM in the ATSC 3.0 system is presented to show that the performance advantages are obtained with small additional complexity.
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Non-Uniform Constellations for ATSC 3.0
TLDR
This paper introduces the concept of a non-uniform constellation (NUC) in contrast to conventional uniform quadrature-amplitude modulation (QAM) constellations, and considers different kinds of NUCs and describe their performance.
View on IEEE
Channel capacity distribution of Layer-Division-Multiplexing system for next generation digital broadcasting transmission
TLDR
The analysis reveals that, for delivering fixed and mobile TV services in the same RF channel, the LDM-based system provides much better efficient usage of the spectrum as compared to the single-layer Time-Division-Multiplexing (TDM) or Frequency-Divison-MultipleXing (FDM)-based systems.
View on IEEE
ATSC Terrestrial Digital Television Broadcasting Using Single Frequency Networks
TLDR
The proposed scheme to synchronize multiple transmitters minimizes the changes from the conventional ATSC system, the hardware complexity for these changes is very low and it is possible to reduce the performance degradation by increasing the initialization period of the proposed scheme.
View on Wiley
Low Complexity Layered Division Multiplexing for ATSC 3.0
TLDR
Simulation and laboratory test results show that the proposed LDM system has significant performance advantage (3-9 dB) over traditional TDM systems, and maintains its performance up to the velocity of 260 km/h in mobile reception.
View on IEEE
Cloud Transmission: System Performance and Application Scenarios
TLDR
The performance of Cloud Txn broadcasting system is described, which is designed to withstand combined noise, co-channel interference and multipath distortion power levels higher than the desired signal power.
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Equalization digital on-channel repeater in the single frequency networks
TLDR
Equalization DOCR (EDOCR) is introduced which regenerates the original 8-VSB output signal with relatively short time system processing delay and can eliminate the loop-back signal up to 5.5 dB with 5 /spl mu/s system processing Delay.
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Transmitter Identification Signal Analyzer for Single Frequency Network
TLDR
Basic concept of the Kasami sequence used as the TxID signals, and their insertion method to the ATSC 8-VSB signals are presented and a theoretical approach to performance measurement of the TXID signal analyzer is discussed.
View on IEEE
System Discovery and Signaling Transmission Using Bootstrap in ATSC 3.0
In ATSC 3.0, a bootstrap is used to enable service discovery and signaling reception at low signal levels. The ATSC 3.0 bootstrap is described in this paper. The bootstrap signal consists of several…
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Equalization On-Channel Repeater for Terrestrial Digital Multimedia Broadcasting System
TLDR
The proposed equalization OCR does not have only short processing delay, but also provides high quality transmitting signals with high power because of the rejection capability of a feedback signal introduced by incomplete antenna isolation and multipath signals existing between a main transmitter and the OCR.
View on IEEE
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