Search Results - "Im, Tae Ho"

RDCP: A Real Time Sea Fog Intensity and Visibility Estimation Algorithm by Hwang, Shin-Hyuk, Park, Se-Kil, Park, Sung-Hyun, Kwon, Ki-Won, Im, Tae-Ho

“…A number of accidents at sea are primarily caused by low visibility due to sea fog. Therefore, it is important to estimate sea fog intensity and visibility in…”
Get full text

AEA-RDCP: An Optimized Real-Time Algorithm for Sea Fog Intensity and Visibility Estimation by Hwang, Shin-Hyuk, Kwon, Ki-Won, Im, Tae-Ho

“…Sea fog reduces visibility to less than 1 km and is a major cause of maritime accidents, particularly affecting the navigation of small fishing vessels as it…”
Get full text

Cell ID and Timing Estimation Techniques for Underwater Acoustic Cellular Systems in High-Doppler Environments by Asim, Muhammad, Khan, Mohammed Saquib, Im, Tae Ho, Cho, Yong Soo

“…In an underwater acoustic cellular (UAC) system, underwater equipment or sensor nodes need to detect the identity of an underwater base station (UBS) and…”
Get full text

UCMAC: A Cooperative MAC Protocol for Underwater Wireless Sensor Networks by Kim, Hee-Won, Im, Tae Ho, Cho, Ho-Shin

“…This paper proposes a cooperative medium access control (MAC) protocol for underwater wireless sensor networks (UWSNs) named UCMAC, which fundamentally…”
Get full text

A Study on the Automation of Fish Species Recognition and Body Length Measurement System by Kang, Seung-Beom, Kim, Seung-Gyu, Lee, Sang-Hyun, Im, Tae-Ho

“…The rapid depletion of fishery resources has led to the global implementation of Total Allowable Catch (TAC) systems. However, the current manual survey…”
Get full text

Cell Search Techniques for Underwater Acoustic Cellular Systems by Asim, Muhammad, Pec, Rothna, Im, Tae Ho, Cho, Yong Soo

“…The concept of frequency reuse has been considered for underwater acoustic cellular (UAC) systems owing to the limited available bandwidth of acoustic…”
Get full text

The analysis of coherence bandwidth and coherence time for underwater channel environments using experimental data in the West sea, Korea by Min-Sang Kim, Tae-Seok Lee, Tae-Ho Im, Hak-Lim Ko

“…In this paper, research was carried out to analyze the channel environment in the real sea using data measured in the shallow water of West sea of South Korea…”
Get full text

A New Signal Detection Method for Spatially Multiplexed MIMO Systems and Its VLSI Implementation by Im, Tae Ho, Park, Insoo, Kim, Jinmin, Yi, Joohyun, Kim, Jaekwon, Yu, Sungwook, Cho, Yong Soo

“…This brief proposes a new signal detection method called QR ordered successive interference cancellation (OSIC) with candidates (QOC) method for spatially…”
Get full text

An FPGA Implementation of MML-DFE for Spatially Multiplexed MIMO Systems by Yu, Sungwook, Im, Tae Ho, Park, Chang Hwan, Kim, Jaekwon, Cho, Yong Soo

“…Although the maximum-likelihood decision-feedback equalization (ML-DFE) detection method for multi-input multi- output (MIMO) system leads to a good compromise…”
Get full text

Performance analysis of FMT-OFDM system in the underwater channel environment by Min-Sang Kim, Tae-Seok Lee, Jun-Ho Kim, Tae-Ho Im, Hak-Lim Ko

“…In this study, performance verification of Resource spread FMT-OFDM system and FMT-OFDM system is carried out through a simulation in the underwater channel…”
Get full text

OFDM Signals Underwater Experiments and Analysis in East Sea of South Korea by Chae, Kwang Young, Lee, Ho Jun, Park, Sung Hyun, Im, Tae Ho, Ko, Hak Lim

“…Underwater communications are significantly challenging due to its characteristics. Sound wave has a slow transmission speed of 1500m/sec, and dispersion and…”
Get full text

Underwater LFM Signal Communication Analysis from the On-Site Experiments in West Sea by Kim, Seong Ho, Han, Sang Man, Park, Sung Hyun, Lee, Ho Jun, Im, Tae Ho

“…This paper analyses the performance of LFM signals according to the different underwater and LFM signal time durations. The speed of sound and water…”
Get full text

A Low Complexity QRM-MLD for MIMO Systems by Tae Ho Im, Jaekwon Kim, Yong Soo Cho

“…In this paper, we address the QRM-MLD signal detection method for spatially multiplexed MIMO systems. Recently, the QRM-MLD signal detection method that can…”
Get full text

Performance Analysis of CSS based Low-power Underwater Communication Systems by Lake Experimental Results by Lee, Tae-seok, Im, Tae-ho, Ko, Hak-lim, Cho, Yong-Ho

“…The difficulty of continuously supplying battery power in underwater communication greatly threatens the stability of the underwater communication network. The…”
Get full text

MMSE-OSIC² Signal Detection for Spatially Multiplexed MIMO Systems by Tae-Ho Im, Jaekwon Kim, Joo-Hyun Yi, Sangboh Yun, Yong-Soo Cho

“…In spatially multiplexed MIMO systems that enable high-data-rate transmission over wireless communication channels, spatial demultiplexing at the receiver is a…”
Get full text

Quasi Trace-Orthogonal Space-Time Block Coding for Underwater MIMO-PPM Acoustic Communications by Petroni, Andrea, Pergoloni, Stefano, Ko, Hak-Lim, Ho Im, Tae, Cho, Yong-Ho, Cusani, Roberto, Scarano, Gaetano, Biagi, Mauro

“…The achievement of an optimal trade-off between reliability and rate has always been one of the most challenging issues in underwater acoustic links. In this…”
Get full text

A Study on Performance of Underwater Acoustic OFMD System in Shallow Water Environment by Kim, Min-Sang, Cho, Yong-Ho, Im, Tae-Ho, Kim, Kye-Won, Ko, Hak-Lim

“…In this paper, performance of underwater acoustic (UWA) OFDM system is studied for long-range shallow water environment. In order to achieve robust…”
Get full text

HFM design for timing synchronization in underwater communications systems by Min-Sang Kim, Tae-Ho Im, Yong-Ho Cho, Kye-Won Kim, Hak-Lim Ko

“…In this paper, we investigate the performance of HFM signals for timing synchronization in underwater acoustic communication systems. The considered HFM…”
Get full text

PPM space-time block coding vs. spatial multiplexing for shallow water acoustic links by Petroni, Andrea, Pergoloni, Stefano, Hak-Lim Ko, Tae Ho Im, Yong-Ho Cho, Biagi, Mauro

“…Underwater acoustic communications performance are severely limited by the high number of reflections especially in shallow water environment so producing…”
Get full text

Pilot allocation design and experimental results for underwater OFDM systems by Yong-Ho Cho, Tae-Ho Im, Min-Sang Kim, Won-Sang Yoon, Hak-Lim Ko

“…In this paper, performance of an underwater acoustic OFDM system is studied for various pilot allocation schemes having different pilot spacings in the…”
Get full text