43 citations · 137 across the 33 of their papers we have counts for
36 papers
EvoRIC: Reinforcement Learning Fine-Tuned LLM-empowered RAN Intelligent Control Toward Autonomous O-RAN
Lingyan Bao, Jemin Lee, Tony Q. S. Quek
Despite recent advances in applying artificial intelligence (AI) techniques to radio access network (RAN), critical challenges remain: traditional machine learning (ML) algorithms…
LLM-hRIC: LLM-empowered Hierarchical RAN Intelligent Control for O-RAN
Lingyan Bao, Sinwoong Yun, Jemin Lee +1
Despite recent advances in applying large language models (LLMs) and machine learning (ML) techniques to open radio access network (O-RAN), critical challenges remain, such as insu…
Positioning Using Wireless Networks: Applications, Recent Progress and Future Challenges
Yang Yang, Mingzhe Chen, Yufei Blankenship +4
Positioning has recently received considerable attention as a key enabler in emerging applications such as extended reality, unmanned aerial vehicles and smart environments. These…
Learning-based sensing and computing decision for data freshness in edge computing-enabled networks
Sinwoong Yun, Dongsun Kim, Chanwon Park +1
As the demand on artificial intelligence (AI)-based applications increases, the freshness of sensed data becomes crucial in the wireless sensor networks. Since those applications r…
Ensuring End-to-End Security with Fine-grained Access Control for Connected and Autonomous Vehicles
Donghyun Yu, Sungho Lee, Ruei-Hau Hsu +1
As advanced V2X applications emerge in the connected and autonomous vehicle (CAV), the data communications between in-vehicle end-devices and outside nodes increase, which make the…
Joint Service Caching and Computing Resource Allocation for Edge Computing-Enabled Networks
Mingun Kim, Hewon Cho, Ying Cui +1
In this paper, we consider the service caching and the computing resource allocation in edge computing (EC) enabled networks. We introduce a random service caching design consideri…
Average Age of Information Penalty of Short-Packet Communications with Packet Management
Zhifeng Tang, Nan Yang, Xiangyun Zhou +1
In this paper, we analyze the non-linear age of information (AoI) performance in a point-to-point short packet communication system, where a transmitter generates packets based on…
Energy-efficient Cooperative Offloading for Edge Computing-enabled Vehicular Networks
Hewon Cho, Ying Cui, Jemin Lee
Edge computing technology has great potential to improve various computation-intensive applications in vehicular networks by providing sufficient computation resources for vehicles…
Precoding Design for Multi-user MIMO Systems with Delay-Constrained and -Tolerant Users
Minsu Kim, Jeonghun Park, Jemin Lee
In both academia and industry, multi-user multiple-input multiple-output (MU-MIMO) techniques have shown enormous gains in spectral efficiency by exploiting spatial degrees of free…
Non-Terrestrial Networks for UAVs: Base Station Service Provisioning Schemes with Antenna Tilt
Seongjun Kim, Minsu Kim, Jong Yeol Ryu +2
By focusing on unmanned aerial vehicle (UAV) communications in non-terrestrial networks (NTNs), this paper provides a guideline on the appropriate base station (BS) service provisi…
Securing Fresh Data in Wireless Monitoring Networks: Age-of-Information Sensitive Coverage Perspective
Jinwoong Kim, Minsu Kim, Jemin Lee
With the development of IoT, the sensor usage has been elevated to a new level, and it becomes more crucial to maintain reliable sensor networks. In this paper, we provide how to e…
Facing to Latency of Hyperledger Fabric for Blockchain-enabled IoT: Modeling and Analysis
Sungho Lee, Minsu Kim, Jemin Lee +3
Hyperledger Fabric (HLF), one of the most popular private blockchains, has recently received attention for blockchain-enabled Internet of Things (IoT). However, for IoT application…
Base Station Coordination Scheme for Multi-tier Ultra-dense Networks
Sudarshan Mukherjee, Dongsun Kim, Jemin Lee
In this paper, we consider a relative received link power (RRLP)-based coordinated multi-point (CoMP) joint transmission (JT) in the multi-tier ultra-dense networks (UDN). In this…
Securing Communications with Friendly Unmanned Aerial Vehicle Jammers
Minsu Kim, Seongjun Kim, Jemin Lee
In this paper, we analyze the impact of a friendly unmanned aerial vehicle (UAV) jammer on UAV communications in the presence of multiple eavesdroppers. We first present channel co…
Ensuring Data Freshness for Blockchain-enabled Monitoring Networks
Minsu Kim, Sungho Lee, Chanwon Park +2
The age of information (AoI) is a recently proposed metric for quantifying data freshness in real-time status monitoring systems where timeliness is of importance. In this paper, t…
Age of Information Analysis in Hyperledger Fabric Blockchain-enabled Monitoring Networks
Minsu Kim, Sungho Lee, Chanwon Park +1
Age of information (AoI) is a recently proposed metric for quantifying data freshness in real-time status monitoring systems where timeliness is of importance. In this paper, we ex…
EC-SVC: Secure CAN Bus In-Vehicle Communications with Fine-grained Access Control Based on Edge Computing
Donghyun Yu, Ruei-Hau Hsu, Jemin Lee
In-vehicle communications are not designed for message exchange between the vehicles and outside systems originally. Thus, the security design of message protection is insufficient…
Is Blockchain Suitable for Data Freshness? -- Age-of-Information Perspective
Sungho Lee, Minsu Kim, Jemin Lee +2
Recent advances in blockchain have led to a significant interest in developing blockchain-based applications. While data can be retained in blockchains, the stored values can be de…
Edge Computing-Enabled Cell-Free Massive MIMO Systems
Sudarshan Mukherjee, Jemin Lee
Mobile edge computing (MEC) has been introduced to provide additional computing capabilities at network edges in order to improve performance of latency critical applications. In t…
Multi-layer Unmanned Aerial Vehicle Networks: Modeling and Performance Analysis
Dongsun Kim, Jemin Lee, Tony Q. S. Quek
Since various types of unmanned aerial vehicles (UAVs) with different hardware capabilities are introduced, we establish a foundation for the multi-layer aerial network (MAN). Firs…
Impact of an Interfering Node on Unmanned Aerial Vehicle Communications
Minsu Kim, Jemin Lee
Unlike terrestrial communications, unmanned aerial vehicle (UAV) communications have some advantages such as the line-of-sight (LoS) environment and flexible mobility. However, the…
Performance Analysis for Multi-layer Unmanned Aerial Vehicle Networks
Dongsun Kim, Jemin Lee, Tony Q. S. Quek
In this paper, we provide the model of the multilayer aerial network (MAN), composed unmanned aerial vehicles (UAVs) that distributed in Poisson point process (PPP) with different…
ReHand: Secure Region-based Fast Handover with User Anonymity for Small Cell Networks in 5G
Chun-I Fan, Jheng-Jia Huang, Min-Zhe Zhong +3
Due to the expectedly higher density of mobile devices and exhaust of radio resources, the fifth generation (5G) mobile networks introduce small cell concept in the radio access te…
Outage Probability of UAV Communications in the Presence of Interference
Minsu Kim, Jemin Lee
Unlike terrestrial communications, unmanned aerial vehicle (UAV) communications have some advantages such as line-of-sight (LoS) environment and flexible mobility, but the interfer…