Study on coverage of full frequency reuse in FFR systems based on outage probability

SH Chang, HG Park, SH Kim… - IEEE Transactions on …, 2018 - ieeexplore.ieee.org
A fractional frequency reuse (FFR) system is an inter-cell interference coordination scheme
used in cellular networks. In FFR systems, the available bandwidth is partitioned into …

Optimal Coverage of Full Frequency Reuse in FFR Networks in Relation to Power Scaling of a Base Station

M Seo, SH Chang, JM Lee, KH Kim, H Park, SH Kim - Sensors, 2023 - mdpi.com
As a strategy to coordinate inter-cell interference in cellular networks, a fractional frequency
reuse (FFR) system is proposed, in which the frequency bandwidth is split into two …

The optimal distance threshold for fractional frequency reuse in size-scalable networks

SH Chang, SH Kim, JP Choi - IEEE Transactions on Aerospace …, 2019 - ieeexplore.ieee.org
In the fractional frequency reuse (FFR) system, the bandwidth is partitioned into orthogonal
subbands such that users in the cell-center region use the subbands of a frequency reuse …

Joint Source, Channel, and Space-Time Coding of Progressive Bitstream in MIMO Channels

SH Chang, M Shin, SH Kim - IEEE Transactions on …, 2019 - ieeexplore.ieee.org
The optimization of joint source and channel coding for a sequence of numerous
progressive packets has been a challenging problem. Further, the problem becomes more …

Neural network-based optimization of progressive image transmission in MIMO systems

J Pyo, SH Kim, SH Chang - 2022 IEEE 95th Vehicular …, 2022 - ieeexplore.ieee.org
This paper considers unmanned aerial vehicles (eg, drones and quadcopters) that
accomplish missions of transmitting a large number of progressive images over air-to …

Deep learning-based optimal transmission of embedded images over interference channels

J Pyo, SH Chang - 2022 IEEE 95th Vehicular Technology …, 2022 - ieeexplore.ieee.org
In this paper, we consider the transmission of embedded (or progressive) images over
interference channels for the purposes such as surveillance, and special missions of public …

Deep Learning-Based Progressive Image Transmission in MIMO Channels with Inter-cell Interference

M Seo, SH Chang - 2023 IEEE 98th Vehicular Technology …, 2023 - ieeexplore.ieee.org
This paper studies the transmission of progressive images over multiple-input multiple-
output (MIMO) channels with inter-cell interference. For the transmission of progressive …

Image broadcasting for heterogeneous user devices in MIMO networks

S Jang, SH Chang, M Kim, S Cho - ICC 2019-2019 IEEE …, 2019 - ieeexplore.ieee.org
This paper considers a multimedia broadcasting scenario in which two types of
heterogeneous users with different display resolutions and different numbers of antennas …

Study on the coverage of fractional frequency reuse cells

SH Chang, HG Park, SH Kim… - 2017 Information Theory …, 2017 - ieeexplore.ieee.org
This paper studies the distance threshold (ie, coverage of the cell center region) in fractional
frequency reuse cells. We analyze the influence of the transmission power of the base …

On the Area Expected Distortion of Scalable Videos in Multi-Frequency System

K Govindasamy, A Mahmud… - 2020 IEEE 5th …, 2020 - ieeexplore.ieee.org
We investigate new performance analysis of multi-channel Scalable Video Coding (SVC) in
multi-frequency system using Area Expected Distortion (AED). We begin by outlining the …