6 citations · 22 across the 19 of their papers we have counts for
15 papers · 1 filter
Channel Capacity Saturation Point and Beamforming Acceleration for Near-Field XL-MIMO Multiuser Communications
Xiangyu Cui, Ki-Hong Park, Mohamed-Slim Alouini
One of the most important technologies in the fifth generation (5G) and the sixth generation (6G) is massive multiple input multiple outputs (MIMO) or extremely large-scale MIMO (X…
Technical Report: Development of an Ultrahigh Bandwidth Software-defined Radio Platform
Sung Sik Nam, Changseok Yoon, Ki-Hong Park +1
For the development of new digital signal processing systems and services, the rapid, easy, and convenient prototyping of ideas and the rapid time-to-market of products are becomin…
On Secure NOMA-CDRT Systems with Physical Layer Network Coding
Hongjiang Lei, Xusheng She, Ki-Hong Park +4
This paper proposes a new scheme to enhance the secrecy performance of a NOMA-based coordinated direct relay transmission system (NOMA-CDRT) with an untrusted relay. The physical-l…
Outage Analysis of Aerial Semi-Grant-Free NOMA Systems
Hongjiang Lei, Chen Zhu, Ki-Hong Park +4
In this paper, we analyze the outage performance of unmanned aerial vehicles (UAVs)-enabled downlink non-orthogonal multiple access (NOMA) communication systems with the semi-grant…
Joint Trajectory Design and User Scheduling of Aerial Cognitive Radio Networks
Hongjiang Lei, Haosi Yang, Ki-Hong Park +3
Unmanned aerial vehicles (UAVs) have been widely employed to enhance the end-to-end performance of wireless communications since the links between UAVs and terrestrial nodes are li…
Statistical Modeling of the Impact of Underwater Bubbles on an Optical Wireless Channel
Myoungkeun Shin, Ki-Hong Park, Mohamed-Slim Alouini
In underwater wireless optical communications (UWOC), the random obstruction of light propagation by air bubbles can cause fluctuations in the incoming light intensity of a receive…
Throughput Maximization of Mixed FSO/RF UAV-aided Mobile Relaying with a Buffer
Ju-Hyung Lee, Ki-Hong Park, Young-Chai Ko +1
In this paper, we consider an unmanned aerial vehicle (UAV) aided mobile relaying system under a buffer constraint. We propose a new relaying protocol employing mixed free-space op…
A UAV-Mounted Free Space Optical Communication: Trajectory Optimization for Flight Time
Ju-Hyung Lee, Ki-Hong Park, Young-Chai Ko +1
In this work, we address the trajectory optimization of a fixed-wing unmanned aerial vehicle (UAV) using free space optical communication (FSOC). Here, we focus on maximizing the f…
Error Rate Analysis of Amplitude-Coherent Detection over Rician Fading Channels with Receiver Diversity
Mohammad Al-Jarrah, Ki-Hong Park, Arafat Al-Dweik +1
Amplitude-coherent (AC) detection is an efficient detection technique that can simplify the receiver design while providing reliable symbol error rate (SER). Therefore, this work c…
Secrecy Outage Analysis for Cooperative NOMA Systems with Relay Selection Scheme
Hongjiang Lei, Zixuan Yang, Ki-Hong Park +4
This paper considers the secrecy outage performance of a multiple-relay assisted non-orthogonal multiple access (NOMA) network over Nakagami- fading channels. Two slots are util…
On Secure Mixed RF-FSO Systems With TAS and Imperfect CSI
Hongjiang Lei, Haolun Luo, Ki-Hong Park +4
In this work, we analyze the secrecy outage performance of a dual-hop relay system composed of multiple-input-multiple-output radio-frequency (RF) links and a free-space optical (F…
Communicating Using Spatial Mode Multiplexing: Potentials, Challenges and Perspectives
Abderrahmen Trichili, Ki-Hong Park, Mourad Zghal +2
Time, polarization, and wavelength multiplexing schemes have been used to satisfy the growing need of transmission capacity. Using space as a new dimension for communication system…
Secrecy Outage Analysis of Mixed RF-FSO Downlink SWIPT Systems
Hongjiang Lei, Zhijun Dai, Ki-Hong Park +3
We analyze a secure dual-hop mixed radio frequency-free space optical (RF-FSO) downlink simultaneous wireless information and power transfer (SWIPT) systems. The FSO link and all R…
Compression and Combining Based on Channel Shortening and Rank Reduction Techniques for Cooperative Wireless Sensor Networks
Qasim Zeeshan Ahmed, Ki-Hong Park, Mohamed-Slim Alouini +1
This paper investigates and compares the performance of wireless sensor networks where sensors operate on the principles of cooperative communications. We consider a scenario where…
Joint Filter Design of Alternate MIMO AF Relaying Networks with Interference Alignment
Ki-Hong Park, Mohamed-Slim Alouini
We study in this paper a two-hop relaying network consisting of one source, one destination, and three amplify-and-forward (AF) relays operating in a half-duplex mode. In order to…