Sunhyoung Kwon

ORCID: 0000-0003-0826-5081
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About
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Research Areas
  • Telecommunications and Broadcasting Technologies
  • Multimedia Communication and Technology
  • PAPR reduction in OFDM
  • Advanced Wireless Communication Techniques
  • Power Line Communications and Noise
  • Error Correcting Code Techniques
  • Advanced MIMO Systems Optimization
  • Video Coding and Compression Technologies
  • Cooperative Communication and Network Coding
  • Full-Duplex Wireless Communications
  • Advanced Photonic Communication Systems
  • Advanced Wireless Communication Technologies
  • Millimeter-Wave Propagation and Modeling
  • Advanced Wireless Network Optimization
  • UAV Applications and Optimization
  • Viral-associated cancers and disorders
  • Radar Systems and Signal Processing
  • Advanced Computational Techniques and Applications
  • Robotic Path Planning Algorithms
  • Satellite Communication Systems
  • Distributed Control Multi-Agent Systems
  • Advanced Data Compression Techniques
  • Energy Harvesting in Wireless Networks
  • Robotics and Sensor-Based Localization

Electronics and Telecommunications Research Institute
2015-2024

Korea Advanced Institute of Science and Technology
2009-2019

In this paper, we propose novel transmitter and receiver architectures for low complexity layered division multiplexing (LDM) systems. The proposed architecture, which is adopted as a baseline technology of the Advanced Television Systems Committee 3.0, shares time frequency interleavers, FFT, pilot patterns, guard interval, preamble, bootstrap among different layers, so that implementation LDM receivers can be realized with less than 10% increase compared to conventional single layer...

10.1109/tbc.2015.2492459 article EN IEEE Transactions on Broadcasting 2015-11-17

This paper presents the advanced television systems committee (ATSC) 3.0 physical layer system performances with different modulation and channel coding combinations. Numerous computer simulations, laboratory tests, field trials are conducted under additive white Gaussian noise, RC20, RL20 channels. Analysis of results shows that measured values in less than 1 dB away from simulation results. confirms ATSC is capable providing services ranging ultra-robust reception (negative SNR operation...

10.1109/tbc.2018.2871372 article EN IEEE Transactions on Broadcasting 2018-10-03

Wireless backhaul has recently gained a significant amount of interest as cost-effective solution in comparison with conventional technologies dedicated microwave links or fiber optics. Self-interference cancellation (SIC) is an enabling technology that allows wireless to operate the more spectrum-efficient in-band full-duplex (IBFD) operation mode instead out-of-band mode. Compared Wi-Fi IBFD transceivers, systems face some unique challenges, such significantly higher transmission power and...

10.1109/twc.2022.3211196 article EN IEEE Transactions on Wireless Communications 2022-10-10

This paper presents a generic methodology to optimize constellations based on their geometrical shaping for bit-interleaved coded modulation (BICM) systems. While the method can be applicable any wireless standard design it has been tailored two delivery scenarios typical of broadcast systems: 1) robust multimedia and 2) UHDTV quality bitrate services. The process is maximizing BICM channel capacity given power constraint. major contribution this low complexity optimization algorithm optimal...

10.1109/tbc.2017.2677259 article EN IEEE Transactions on Broadcasting 2017-03-22

In this paper, we present laboratory and field test results of layered division multiplexing (LDM) time (TDM) technologies based on Advanced Television Systems Committee 3.0. The presented include analysis in several scenarios such as rooftop, indoor, mobile receptions. order to provide performance comparison the LDM TDM technologies, reception power (field strength) successful rate are measured for all considered scenarios. For in-depth real environment, further measurements threshold...

10.1109/tbc.2017.2755375 article EN IEEE Transactions on Broadcasting 2017-10-09

This paper presents Internet protocol (IP)-based convergence of broadcast and broadband networks using Advanced Television Systems Committee (ATSC) 3.0-the next generation terrestrial broadcasting standard. In the network, combination Layered Division Multiplexing (LDM) Scalable High Efficiency Video Codec (SHVC) is used, enabling efficient use spectrum when mobile fixed services are intended in a single radio frequency (RF) channel. The proposed case IP-based that service largely consumed...

10.1109/tbc.2020.2983301 article EN IEEE Transactions on Broadcasting 2020-04-15

Offset min-sum algorithm (OMSA) and normalized (NMSA) are widely used in commercial LDPC decoders due to low complexity reasonable performance. In this paper, we provide optimized offset scaling values for those based on Advanced Television Systems Committee (ATSC) 3.0 codes. Furthermore, according extensive computer simulations, it is shown that the performance of OMSA NMSA with obtained close sum-product algorithm, even though NMSA-based decoder may show a serious error floor channel...

10.1109/tbc.2017.2686011 article EN IEEE Transactions on Broadcasting 2017-04-12

The physical layer [layer-1 (L1)] signaling (L1 signaling) of Advanced Television Systems Committee (ATSC) 3.0 is studied. In the new digital broadcasting system, ATSC 3.0, L1 designed to be more efficient but still robust compared with preceding standards such as DVB-T2. We introduce error protection scheme in detail. Especially advanced methods newly employed are investigated regard its purpose and benefit comparison conventional

10.1109/tbc.2016.2518624 article EN IEEE Transactions on Broadcasting 2016-02-10

This paper presents performance analysis of the Advanced Television Systems Committee (ATSC) 3.0 physical layer protocol in mobile multipath channels. Given recommended configurations for ATSC services, intensive computer simulations as well laboratory tests are conducted to verify various modulation and code combinations protocol. The results demonstrate that can reliably deliver intended services high-mobility scenarios.

10.1109/tbc.2019.2954065 article EN IEEE Transactions on Broadcasting 2020-01-01

This paper provides performance evaluations of two state-of-the-art terrestrial broadcasting systems, ATSC 3.0 and 3GPP Rel-17 5G broadcast, in terms physical layer capability, network deployment operating costs. The performances are evaluated the mobile environment, considering practical implementations handheld terminals. Extensive simulation results demonstrate that outperforms because well-designed bit interleaved coded modulation (BICM) time interleaver can mitigate deep signal fades....

10.1109/tbc.2022.3222988 article EN IEEE Transactions on Broadcasting 2022-11-24

This paper proposes several realistic fading channel models to describe the signal distortions that arise in single frequency network (SFN) environments. The proposed characterize ultra-high (UHF) wireless channels based on measurements from operating networks metropolitan areas. In this paper, unique features of SFN transmission are identified compared conventional, antenna channels. impacts urban propagation, tower configuration, and mobile terrain effects considered tapped delay line...

10.1109/tbc.2022.3210382 article EN IEEE Transactions on Broadcasting 2022-10-10

In the ATSC 3.0 PHY layer standard, a transmitter identification (TxID) signal is defined in order to provide of an transmitter. TxID can also be used find co-channel and adjacent interference signals, assist accurate location finding calculation, obtain channel estimation for each transmitter, which help local service (e.g., targeted advertisement) reception, as well emergency alert. For efficient use spectrum quality improvement, single frequency network (SFN) where all transmitters share...

10.1109/tbc.2016.2630268 article EN IEEE Transactions on Broadcasting 2016-12-20

In this paper, we present an efficient transmission method of multiple broadcasting services using layered division multiplexing (LDM) and scalable high efficiency video coding (SHVC) based on the next generation terrestrial digital standard, advanced television systems committee 3.0. a two-layer LDM system, each layer forms physical pipe that carries base enhancement streams SHVC, respectively. This combination presentation layers technologies can maximize channel utilization when are...

10.1109/tbc.2017.2755264 article EN IEEE Transactions on Broadcasting 2017-10-09

In this paper, we present field test results of a layered division multiplexing (LDM) technology for the next generation digital television system, and analyze in several scenarios such as rooftop, indoor, mobile receptions. order to evaluate performance LDM technology, strength or reception power is measured all considered scenarios. Furthermore, threshold visibility, marginal power, erroneous second ratio are fixed, receptions, respectively. The show that enables broadcaster not only...

10.1109/tbc.2016.2576642 article EN IEEE Transactions on Broadcasting 2017-03-01

This paper presents implementation and memory use aspects for layered division multiplexing (LDM) technology defined in the next generation terrestrial broadcast standard, called advanced television systems committee (ATSC) 3.0. As LDM becomes a new method that combines multiple contents, its practical considerations on transmitter receiver implementations as well usages are described this paper. When physical layer pipes used, feasibility of discussed, performance analysis comparison with...

10.1109/tbc.2019.2897750 article EN IEEE Transactions on Broadcasting 2019-02-25

In this paper, we present multiple service configurations based on layered division multiplexing (LDM), which is adopted as a baseline technology of the Advanced Television Systems Committee 3.0 standard. Based two-layer LDM technology, variety multiple-physical layer pipe (PLP) well physical framing introduced depending choices scenario, time interleaving, and cell addressing. A performance analysis provided when three different broadcasting services - robust audio, indoor/mobile, high data...

10.1109/tbc.2016.2590824 article EN IEEE Transactions on Broadcasting 2016-07-29

Single frequency network (SFN) enables efficient use of spectrum by allocating the same among multiple transmitters. In order to efficiently design and manage SFN, Advanced Television Systems Committee (ATSC) 3.0 physical layer standard has adopted transmitter identification (TxID) technology which allows measure individual and/or whole channel response, such as power time delay broadcast signal from Since TxID is embedded into host ATSC frame radio (RF) watermark, it transparent legacy...

10.1109/tbc.2019.2941074 article EN IEEE Transactions on Broadcasting 2019-10-15

This paper encompasses various topics for 5G-involved broadcasting under the common context converged distribution of 5G media. Particularly, two primary subtopics are addressed: An overlaid coexistence terrestrial broadcast and Advanced Television Systems Committee (ATSC) 3.0; dual connectivity applications built on top convergence between digital unicasting. In first part, a viable, time-sharing co-transmission system is introduced to overlay Broadcast ATSC 3.0 frames in same radio...

10.1109/tbc.2021.3136755 article EN IEEE Transactions on Broadcasting 2021-12-29

A relevant solution for the high demand new multimedia applications and services is millimeter wave (mmWave) frequency band in 5G. However, order to face technological challenges of present those that will appear short-term future, it necessary improve spectral efficiency 5G systems. In particular, Radio Resource Management (RRM) module considered an essential component. Nevertheless, resource allocation techniques combine orthogonal multiplexing (OMA) schemes, such as Time Division Multiple...

10.1109/tbc.2021.3128049 article EN IEEE Transactions on Broadcasting 2021-11-23

Despite the successful launch of Advanced Television Systems Committee (ATSC) 3.0 broadcasting worldwide, broadcasters are facing obstacles in constructing void-less large-scale single-frequency networks (SFNs). The bottleneck is absence decent on-channel repeater (OCR) solutions necessary for SFNs. In real world, OCRs suffer from maleficent feedback interference (FI) problem, which overwhelms desired input signal. Moreover, undesired multipaths between studio-linked transmitters and OCR...

10.4218/etrij.2021-0194 article EN ETRI Journal 2022-06-08

This paper proposes a simplified non-uniform constellation (NUC) demapping scheme for the next generation broadcasting systems which adopt NUC as an advanced modulation technique. The proposed provides reduced complexity by considering only effective bits within modulated symbol while performance loss is negligible.

10.1109/bmsb.2015.7177239 article EN 2015-06-01

In this brief, we propose an augmented data transmission (ADT)-based ultrahigh definition (UHD) television system for the existing advanced systems committee terrestrial digital (DTV) broadcasting. The proposed can support a rate of 12 Mb/s using moving pictures expert group-2 (MPEG-2)-based DTV signal and 12.5 High Efficiency Video Coding (HEVC)-based ADT signals. By combining properly MPEG-2-based signal, HEVC-based 4K (3840 × 2160 ) UHD video be served while providing backward-compatible...

10.1109/tbc.2014.2374223 article EN IEEE Transactions on Broadcasting 2014-12-12

To effectively operate and maintain an existing single frequency network (SFN), the advanced television systems committee (ATSC) 3.0 transmission system has utilized a transmitter identification (TxID) technique. The TxID technique aims is to obtain channel impulse response (CIR) of each independently support adjustment relative power level delay offset individual transmitters. professional receiver can detect such CIR, but commercial ATSC does not need be necessarily decoded signal. Also,...

10.1109/tbc.2020.2965060 article EN IEEE Transactions on Broadcasting 2020-01-29

The advent of the new generation mobile network catalyzed appearance verticals demanding a significant increase in required spectrum resources. A promising alternative to satisfy that hunger for resources is incorporate delivery mechanism alleviate congestion classical wireless radio access networks (broadband and cellular). ATSC 3.0 enables IP-based content delivery, thus, it could be considered an integrated into IP infrastructure. Nevertheless, there still last missing piece bring...

10.1109/bmsb53066.2021.9547091 article EN 2022 IEEE International Symposium on Broadband Multimedia Systems and Broadcasting (BMSB) 2021-08-04

In this paper, we propose a two dimensional (2-D) code based on vertical low-density parity check (LDPC) and horizontal Reed-Solomon for the cloud transmission system. The proposed 2-D shows superior performance under fading channels due to its inherent block-type interleaving feature. Furthermore, can be adaptively decoded reduce decoding latency complexity because LDPC has raptor-like rate-compatible

10.1109/tbc.2014.2370111 article EN IEEE Transactions on Broadcasting 2014-12-12
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