Ki Won Sung
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View article: Detecting Multiple Targets with Distributed Sensing and Communication in Cell-Free Massive MIMO
Detecting Multiple Targets with Distributed Sensing and Communication in Cell-Free Massive MIMO Open
This paper investigates multi-target detection in an integrated sensing and communication (ISAC) system within a cell-free massive MIMO (CF-mMIMO) framework. We adopt a user-centric approach for communication user equipments (UEs) and a di…
View article: Beam Misalignment in 3GPP mmWave NR
Beam Misalignment in 3GPP mmWave NR Open
This paper presents an analytical framework for evaluating beam misalignment in 3GPP mmWave NR systems implementing analog beamforming. Our approach captures the interaction between user mobility, beam sweeping mechanisms, and deploymen…
View article: Beam Misalignment in 3GPP mmWave NR
Beam Misalignment in 3GPP mmWave NR Open
This paper presents an analytical framework for evaluating beam misalignment in 3GPP mmWave NR systems implementing analog beamforming. Our approach captures the interaction between user mobility, beam sweeping mechanisms, and deployment c…
View article: Coverage and Fronthaul Requirements in Beyond 5G C-RAN Deployments
Coverage and Fronthaul Requirements in Beyond 5G C-RAN Deployments Open
<div>\n<div>\n<div>\n<div>With the advent of 5G, communication in the mmW ave band <span><span><span><span>(</span><span>24</span><span>−</span><sp…
View article: Multi-Static Target Detection and Power Allocation for Integrated Sensing and Communication in Cell-Free Massive MIMO
Multi-Static Target Detection and Power Allocation for Integrated Sensing and Communication in Cell-Free Massive MIMO Open
This paper studies an integrated sensing and communication (ISAC) system within a centralized cell-free massive MIMO (multiple-input multiple-output) network for target detection. ISAC transmit access points serve the user equipments in th…
View article: Interplay between Sensing and Communication in Cell-Free Massive MIMO with URLLC Users
Interplay between Sensing and Communication in Cell-Free Massive MIMO with URLLC Users Open
This paper studies integrated sensing and communication (ISAC) in the downlink of a cell-free massive multiple-input multiple-output (MIMO) system with multi-static sensing and ultra-reliable low-latency communication (URLLC) users. We pro…
View article: End-to-End Energy Saving in Cell-Free Massive MIMO ISAC for Ultra-Reliable Target-Aware Actuation
End-to-End Energy Saving in Cell-Free Massive MIMO ISAC for Ultra-Reliable Target-Aware Actuation Open
Ultra-reliable target-aware actuation-where timely and accurate sensing information is used to trigger critical actions in emerging 6G sensing-based applications-demands tight integration of sensing and communication under stringent reliab…
View article: Multi-Static Target Detection and Power Allocation for Integrated Sensing and Communication in Cell-Free Massive MIMO
Multi-Static Target Detection and Power Allocation for Integrated Sensing and Communication in Cell-Free Massive MIMO Open
This paper studies an integrated sensing and communication (ISAC) system within a centralized cell-free massive MIMO (multiple-input multiple-output) network for target detection. ISAC transmit access points serve the user equipments in th…
View article: Power Allocation for Joint Communication and Sensing in Cell-Free Massive MIMO
Power Allocation for Joint Communication and Sensing in Cell-Free Massive MIMO Open
This paper studies a joint communication and sensing (JCAS) system with downlink communication and multi-static sensing for single-target detection in a cloud radio access network architecture. A centralized operation of cell-free massive …
View article: Low-Latency MAC Design for Pairwise Random Networks
Low-Latency MAC Design for Pairwise Random Networks Open
Feasibility of using unlicensed spectrum for ultra reliable low latency communications (URLLC) is still a question for beyond 5G wireless networks. Low latency access to the channel and efficiently sharing spectrum among the multiple users…
View article: Low-Latency MAC Design for Pairwise Random Networks
Low-Latency MAC Design for Pairwise Random Networks Open
Feasibility of using unlicensed spectrum for ultra reliable low latency communications (URLLC) is still a question for beyond 5G wireless networks. Low latency access to the channel and efficiently sharing spectrum among the multiple users…
View article: Sparse Channel Estimation in Wideband Systems With Geometric Sequence Decomposition
Sparse Channel Estimation in Wideband Systems With Geometric Sequence Decomposition Open
The sparsity of multipaths in the wideband channel has motivated the use of compressed sensing for channel estimation. In this letter, we propose a different approach to sparse channel estimation. We exploit the fact that $L$ taps of chann…
View article: Noise Learning-Based Denoising Autoencoder
Noise Learning-Based Denoising Autoencoder Open
This letter introduces a new denoiser that modifies the structure of denoising autoencoder (DAE), namely noise learning based DAE (nlDAE). The proposed nlDAE learns the noise of the input data. Then, the denoising is performed by subtracti…
View article: On the benefit of inter‐operator cooperation in C‐RAN
On the benefit of inter‐operator cooperation in C‐RAN Open
Cooperation of co‐located mobile network operators can provide potential benefits for the capacity expansion without further densification of radio nodes. However, such benefits need to be scrutinised for coexisting cloud radio access netw…
View article: Geometric Sequence Decomposition With <i>k</i>-Simplexes Transform
Geometric Sequence Decomposition With <i>k</i>-Simplexes Transform Open
This paper presents a computationally efficient technique for decomposing non-orthogonally superposed $k$ geometric sequences. The method, which is named as geometric sequence decomposition with $k$-simplexes transform (GSD-ST), is based o…
View article: Geometric Sequence Decomposition with $k$-simplexes Transform
Geometric Sequence Decomposition with $k$-simplexes Transform Open
This paper presents a computationally efficient technique for decomposing non-orthogonally superposed $k$ geometric sequences. The method, which is named as geometric sequence decomposition with $k$-simplexes transform (GSD-ST), is based o…
View article: PriMO-5G: making firefighting smarter with immersive videos through 5G
PriMO-5G: making firefighting smarter with immersive videos through 5G Open
| openaire: EC/H2020/815191/EU//PriMO-5G
View article: Reducing Initial Cell-search Latency in mmWave Networks
Reducing Initial Cell-search Latency in mmWave Networks Open
Millimeter-wave (mmWave) networks rely on directional transmissions, in both control plane and data plane, to overcome severe path-loss. Nevertheless, the use of narrow beams complicates the initial cell-search procedure where we lack suff…
View article: Semianalytical Approach to the PDF of SINR in HPHT and LPLT Single-Frequency Networks
Semianalytical Approach to the PDF of SINR in HPHT and LPLT Single-Frequency Networks Open
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View article: Millimeter-Wave Interference Avoidance via Building-Aware Associations
Millimeter-Wave Interference Avoidance via Building-Aware Associations Open
Signal occlusion by building blockages is a double-edged sword for the performance of millimeter-wave (mmW) communication networks. Buildings may dominantly attenuate the useful signals, especially when mmW base stations (BSs) are sparsely…
View article: Millimeter-Wave Interference Avoidance via Building-Aware Associations
Millimeter-Wave Interference Avoidance via Building-Aware Associations Open
Signal occlusion by building blockages is a double-edged sword for the performance of millimeter-wave (mmW) communication networks. Buildings may dominantly attenuate the useful signals, especially when mmW base stations (BSs) are sparsely…
View article: Cooperative Transmissions In Ultra-Dense Networks Under A Bounded Dual-Slope Path Loss Model
Cooperative Transmissions In Ultra-Dense Networks Under A Bounded Dual-Slope Path Loss Model Open
In an ultra-dense network (UDN) where there are more base stations (BSs) than active users, it is possible that many BSs are instantaneously left idle. Thus, how to utilize these dormant BSs by means of cooperative transmission is an inter…
View article: Joint Transmission With Dummy Symbols For Dynamic Tdd In Ultra-Dense Deployments
Joint Transmission With Dummy Symbols For Dynamic Tdd In Ultra-Dense Deployments Open
Dynamic time-division duplexing (TDD) is considered a promising solution to deal with fast-varying traffic often found in ultra-densely deployed networks. At the same time, it generates more interference which may degrade the performance o…
View article: Cooperative transmissions in ultra-dense networks under a bounded dual-slope path loss model
Cooperative transmissions in ultra-dense networks under a bounded dual-slope path loss model Open
In an ultra-dense network (UDN) where there are more base stations (BSs) than active users, it is possible that many BSs are instantaneously left idle. Thus, how to utilize these dormant BSs by means of cooperative transmission is an inter…
View article: On The Asymptotic Behavior Of Ultra-Densification Under A Bounded Dual-Slope Path Loss Model
On The Asymptotic Behavior Of Ultra-Densification Under A Bounded Dual-Slope Path Loss Model Open
In this paper, we investigate the impact of network densification on the performance in terms of downlink signal to-interference (SIR) coverage probability and network area spectral efficiency (ASE). A sophisticated bounded dual-slope path…
View article: A performance comparison of in-band full duplex and dynamic TDD for 5G indoor wireless networks
A performance comparison of in-band full duplex and dynamic TDD for 5G indoor wireless networks Open
In-band full duplex has emerged as a solution for high data rate and low access delay for 5G wireless networks after its feasibility has been demonstrated. However, the impact of the in-band full duplex on the system-level performance of m…
View article: Joint Transmission with Dummy Symbols for Dynamic TDD in Ultra-Dense Deployments
Joint Transmission with Dummy Symbols for Dynamic TDD in Ultra-Dense Deployments Open
Dynamic time-division duplexing (TDD) is considered a promising solution to deal with fast-varying traffic often found in ultra-densely deployed networks. At the same time, it generates more interference which may degrade the performance o…
View article: On the Asymptotic Behavior of Ultra-Densification under a Bounded Dual-Slope Path Loss Model
On the Asymptotic Behavior of Ultra-Densification under a Bounded Dual-Slope Path Loss Model Open
In this paper, we investigate the impact of network densification on the performance in terms of downlink signal-to-interference (SIR) coverage probability and network area spectral efficiency (ASE). A sophisticated bounded dual-slope path…
View article: Cooperative Transmissions in Ultra-Dense Networks under a Bounded Dual-Slope Path Loss Model
Cooperative Transmissions in Ultra-Dense Networks under a Bounded Dual-Slope Path Loss Model Open
In an Ultra-dense network (UDN) where there are more base stations (BSs) than active users, it is possible that many BSs are instantaneously left idle. Thus, how to utilize these dormant BSs by means of cooperative transmission is an inter…