J. Seo

Publications45
h-index8
Citations253
Highly Influential Citations3
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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.
Fast carrier frequency offset compensation in OFDM systems
A speed-up algorithm to compensate the carrier frequency offset of OFDM systems is proposed when the offset closes to 0.5n, n=/spl plusmn/1, /spl plusmn/3, ..., times a sub-carrier space. We generate…
A Design of Equalization Digital On-Channel Repeater for Single Frequency Network ATSC System
TLDR
The designed EDOCR can produce an exact replica of the main transmitter's signal with high SNR although there may be adjacent channels and input signal is distorted by multipath and noise.
Field Comparison Tests of LDM and TDM in ATSC 3.0
TLDR
The laboratory and field test results show that the LDM technology not only shows superior performance compared to the TDM technology in all the considered scenarios, but also enables broadcaster to efficiently provide a variety of services with different robustness within a single radio frequency channel.
Modulation and Pre-Equalization Method to Minimize Time Delay in Equalization Digital On-Channel Repeater
TLDR
Novel modulation and pre-equalization methods to minimize a signal processing time delay in the equalization digital on-channel repeater (EDOCR) for the ATSC terrestrial digital TV system are presented.
Fast carrier frequency offset compensation in OFDM systems
TLDR
A new coarse Carrier frequency synchronization algorithm is proposed that can estimate a coarse carrier frequency offset using only two symbols in the frequency domain for orthogonal frequency division multiplexing (OFDM) systems, and can significantly reduce the time required to synchronize a carrier frequency.
A Novel Distributed Translator for an ATSC Terrestrial DTV System
This paper presents a new design and implementation method of distributed translator (DTxR), termed the equalization DTxR (EDTxR), for distributed translator network in ATSC systems. EDTxR has a…
Soft linear MMSE detection for coded MIMO systems
TLDR
A computationally efficient MIMO detection scheme which can provide accurate soft information to the decoder and greatly reduces the complexity due to its linear order of computational algorithm.
Improved Polarized 2x2 MIMO Spatial Multiplexing Method for DVB-NGH System
TLDR
A pre-coding method is proposed, which provides high-space channel correlation for the improved performance over terrestrial broadcasting channels when the MIMO spatial multiplexing (SM) is adopted for digital video broadcasting-next generation handheld systems.
Research on scalable bandwidth transmission for digital terrestrial TV broadcasting
TLDR
A bandwidth scalability for digital terrestrial broadcasting, which uses a wide bandwidth of multiples of the conventional bandwidth 6/7/8 MHz, has advantages not only in reducing network installation cost and operation cost but also in reception performances due to avoiding interferences.
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