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REFERENCE LINKING PLATFORM OF KOREA S&T JOURNALS
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Journal of the Institute of Electronics and Information Engineers
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The Institute of Electronics Engineers of Korea
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Volume & Issues
Volume 51, Issue 12 - Dec 2014
Volume 51, Issue 11 - Nov 2014
Volume 51, Issue 10 - Oct 2014
Volume 51, Issue 9 - Sep 2014
Volume 51, Issue 8 - Aug 2014
Volume 51, Issue 7 - Jul 2014
Volume 51, Issue 6 - Jun 2014
Volume 51, Issue 5 - May 2014
Volume 51, Issue 4 - Apr 2014
Volume 51, Issue 3 - Mar 2014
Volume 51, Issue 2 - Feb 2014
Volume 51, Issue 1 - Jan 2014
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Performance Analysis of a Full-Duplex Two-Way Relay Network over Rayleigh Fading Channels
Choi, Dongwook ; Lee, Jae Hong ;
Journal of the Institute of Electronics and Information Engineers, volume 51, issue 3, 2014, Pages 3~9
DOI : 10.5573/ieie.2014.51.3.003
Two-way full-duplex relay network provides improved spectral efficiency by using either superposition coding or physical layer network coding at relays compared to conventional two-way half-duplex relay network. In this paper, we investigate the impact of residual loop interference on the performance of the two-way full-duplex relay network. Users and relays in the two-way full-duplex relay network estimate the residual loop interference in order to cancel it. However, it is difficult to perfectly cancel the residual loop interference from the received signal due to the estimation error. Numerical results show the impact of the estimation error on the outage probability of the two-way full-duplex relay network.
Performance Analysis of Emergency Communication System of Nuclear Power Plant using Markov Model
Son, Kwang Seop ;
Journal of the Institute of Electronics and Information Engineers, volume 51, issue 3, 2014, Pages 10~21
DOI : 10.5573/ieie.2014.51.3.010
In Fukushima accident, when the severe accident such as a natural disaster happens, it is impossible to monitor the plant status due to a extreme environment and station blackout and most I&C systems break downs. Finally, these cause the loss of emergency cooling function and thus results in a hydrogen explosion and radiation leak. In this paper, the emergency response system is introduced that monitors and controls properly when the sever accidents like Fukushima accident happen, And the performance requirements of a wireless communication system used in the emergency respons system is described and the performance of emergency communication system is analyzed using the markov model.
Design and Performance Analysis of RSRR Scheduling Algorithm for Enhancing Performance of IEEE 802.11s MCCA
Kim, Bong Gyu ; Jung, Whoi Jin ; Lee, Jae Yong ; Kim, Byung Chul ;
Journal of the Institute of Electronics and Information Engineers, volume 51, issue 3, 2014, Pages 22~33
DOI : 10.5573/ieie.2014.51.3.022
As a standard of WMNs, IEEE 802.11s supports two kinds of MAC algorithm: a mandatory EDCA used by IEEE 802.11e and an optional MCCA. While EDCA classifies traffic according to four Access Categories (AC) and offer differentiated service using a classified priority, MCCA can guarantee the specific bandwidth of users with a TDMA-style bandwidth reservation scheme between mesh routers. In case that a flow is VBR traffic of a multimedia application, MCCA has disadvantage that the reserved bandwidth does not be used entirely, though it guarantees required bandwidth of users and fairness using bandwidth reservation with neighbors` node. In this paper, we showed a problem that is wastes the reserved bandwidth when MCCA is enabled and proposed a new scheduling algorithm to prevent waste of bandwidth and to improve network utilization effectively, named Resource Sharing Round Robin (RSRR) scheduling. Finally we showed simulation results that performance of a proposed RSRR is better than the legacy MCCA through NS-2 simulation.
Estimation Method of Single Stagger PRI and Future TOA for Active Cancellation
Lim, Seongmok ; Sim, Dongkyu ; Lee, Chungyong ;
Journal of the Institute of Electronics and Information Engineers, volume 51, issue 3, 2014, Pages 34~41
DOI : 10.5573/ieie.2014.51.3.034
Through applying hostile radar signals that use stagger PRI to PRI transform in real time, we can analyze stagger PRI and calculate the future TOA for active cancellation by using measured TOA and estimated PRI. We shows the effect of the errors that are contained in PRI and measured TOA. Then, it will suggest the technique to improve the accuracy of estimated PRI and the TOA averaging method for reducing the effect of measured TOA error. Finally, we will show that accuracy of estimated future TOA that is calculated by proposed scheme is higher than that of future TOA that is simply calculated with TDOA and newest TOA through comparing RMSE performance.
Design and fabrication of current limiting InP Gunn diode for W-band waveguide FTO
Ko, Dong-Sik ; Kwak, No-Seong ; Kim, Young-Jin ; Heo, Jun-Woo ; Ko, Pil-Seok ; Kim, Sam-Dong ; Park, Hyun-Chang ; Rhee, Jin-Koo ; Chun, Young-Hoon ; Lee, Seok-Chul ;
Journal of the Institute of Electronics and Information Engineers, volume 51, issue 3, 2014, Pages 45~54
DOI : 10.5573/ieie.2014.51.3.045
In this paper, We have designed and fabricated 20 InP Gunn diodes using a current limiting epitaxial structure by MINT`s optimized fabrication processes. We have also packaged the fabricated InP Gunn diodes using our optimized packaging method, and then designed and fabricated a W-band waveguide FTO to measure characteristics of the packaged InP Gunn diodes. The packaged InP Gunn diode have a ceramic ring, a Au plated stud and a lid, and a Maltese cross. The fabricated InP Gunn diodes have good RF characteristics such as high output powers (11.8~17 dBm) and limiting low currents (less than 400 mA) between 92.9 and 94.78 GHz.
A Design of 40GHz CMOS VCO (Voltage Controlled Oscillator) for High Speed Communication System
Lee, Jongsuk ; Moon, Yong ;
Journal of the Institute of Electronics and Information Engineers, volume 51, issue 3, 2014, Pages 55~60
DOI : 10.5573/ieie.2014.51.3.055
For an high speed communication, a 40GHz VCO was implemented using a 0.11um standard CMOS technology. The mm-wave VCO was designed by a LC type using a spiral inductor, and a simplified architecture with buffers and a smart biasing technique were used to get a high performance. The frequency range of the proposed VCO is 34~40GHz which is suitable for mm-Wave communication system. It has an output power of -16dBm and 16% tuning range. And the phase noise is -100.33dBc/Hz at 1MHz offset at 38GHz fundamental frequency. The total power consumption of VCO including PADs is 16.8mW with 1.2V supply voltage. The VCO achieves the FOMT of -183.8dBc/Hz which is better than previous VOCs.
MLC NAND-type Flash Memory Built-In Self Test for research
Kim, Jin-Wan ; Kim, Tae-Hwan ; Chang, Hoon ;
Journal of the Institute of Electronics and Information Engineers, volume 51, issue 3, 2014, Pages 61~71
DOI : 10.5573/ieie.2014.51.3.061
As the occupancy rate of the flash memory increases in the storage media market for the embedded system and the semi-conductor industry grows, the demand and supply of flash memory is increasing by a big margin. They are especially used in large quantity in the smart phones, tablets, PC, SSD and Soc(System on Chip) etc. The flash memory is divided into the NOR type and NAND type according to the cell arrangement structure and the NAND type is divided into the SLC(Single Level Cell) and MLC(Multi Level Cell) according to the number of bits that can be stored in each cell. Many tests have been performed on NOR type such as BIST(Bulit-In Self Test) and BIRA(Bulit-In Redundancy Analysis) etc, but there is little study on the NAND type. For the case of the existing BIST, the test can be proceeded using external equipments like ATE of high price. However, this paper is an attempt for the improvement of credibility and harvest rate of the system by proposing the BIST for the MLC NAND type flash memory of Finite State Machine structure on which the pattern test can be performed without external equipment since the necessary patterns are embedded in the interior and which uses the MLC NAND March(x) algorithm and pattern which had been proposed for the MLC NAND type flash memory.
Image Forensic Decision Algorithm using Edge Energy Information of Forgery Image
Rhee, Kang Hyeon ;
Journal of the Institute of Electronics and Information Engineers, volume 51, issue 3, 2014, Pages 75~81
DOI : 10.5573/ieie.2014.51.3.075
In a distribution of the digital image, there is a serious problem that is distributed an illegal forgery image by pirates. For the problem solution, this paper proposes an image forensic decision algorithm using an edge energy information of forgery image. The algorithm uses SA (Streaking Artifacts) and SPAM (Subtractive Pixel Adjacency Matrix) to extract the edge energy informations of original image according to JPEG compression rate(QF
The Effect of Mesh Reordering on Laplacian Smoothing for Nonuniform Memory Access Architecture-based High Performance Computing Systems
Kim, Jbium ;
Journal of the Institute of Electronics and Information Engineers, volume 51, issue 3, 2014, Pages 82~88
DOI : 10.5573/ieie.2014.51.3.082
We study the effect of mesh reordering on Laplacian smoothing for parallel high performance computing systems. Specifically, we use the Reverse-Cuthill McKee algorithm to reorder meshes and use Laplacian Smoothing to improve the mesh quality on Nonuniform memory access architecture-based parallel high performance computing systems. First, we investigate the effect of using mesh reordering on Laplacian smoothing for a single core system and extend the idea to NUMA-based high performance computing systems.
Design and Implementation of ASTERIX Parsing Module Based on Pattern Matching for Air Traffic Control Display System
Kim, Kanghee ; Kim, Hojoong ; Yin, Run Dong ; Choi, SangBang ;
Journal of the Institute of Electronics and Information Engineers, volume 51, issue 3, 2014, Pages 89~101
DOI : 10.5573/ieie.2014.51.3.089
Recently, as domestic air traffic dramatically increases, the need of ATC(air traffic control) systems has grown for safe and efficient ATM(air traffic management). Especially, for smooth ATC, it is far more important that performance of display system which should show all air traffic situation in FIR(Flight Information Region) without additional latency is guaranteed. In this paper, we design a ASTERIX(All purpose STructured Eurocontrol suRveillance Information eXchange) parsing module to promote stable ATC by minimizing system loads, which is connected with reducing overheads arisen when we parse ASTERIX message. Our ASTERIX parsing module based on pattern matching creates patterns by analyzing received ASTERIX data, and handles following received ASTERIX data using pre-defined procedure through patterns. This module minimizes display errors by rapidly extracting only necessary information for display different from existing parsing module containing unnecessary parsing procedure. Therefore, this designed module is to enable controllers to operate stable ATC. The comparison with existing general bit level ASTERIX parsing module shows that ASTERIX parsing module based on pattern matching has shorter processing delay, higher throughput, and lower CPU usage.
Multiple Shortfall Estimation Method for Image Resolution Enhancement
Kim, Won-Hee ; Kim, Jong-Nam ; Jeong, Shin-Il ;
Journal of the Institute of Electronics and Information Engineers, volume 51, issue 3, 2014, Pages 105~111
DOI : 10.5573/ieie.2014.51.3.105
Image resolution enhancement is a technique to generate high-resolution image through improving resolution of low-resolution obtained image. It is important to estimate correctly missing pixel value in low-resolution obtained image for image resolution enhancement. In this paper, multiple shortfall estimation method for image resolution enhancement is proposed. The proposed method estimate separate multiple shortfall by predictive degradation-restoration processing in sub-images of obtained image, and generate result image combining the estimated shortfall and interpolated obtained-image. Lastly, final reconstruction image is generated by deblurring of the result image. The experimental results demonstrate that the proposed method has the best results of all compared methods in objective image quality index: PSNR, SSIM, and FSIM. The quality of reconstructed image is superior to all compared methods, and the proposed method has better lower computational complexity than compared methods. The proposed method can be useful for image resolution enhancement.
VLSI Architecture of Digital Image Scaler Combining Linear Interpolation and Cubic Convolution Interpolation
Moon, Hae Min ; Pan, Sung Bum ;
Journal of the Institute of Electronics and Information Engineers, volume 51, issue 3, 2014, Pages 112~118
DOI : 10.5573/ieie.2014.51.3.112
As higher quality of image is required for digital image scaling, longer processing time is required. Therefore the technology that can make higher quality image quickly is needed. We propose the double linear-cubic convolution interpolation which creates the high quality image with low complexity and hardware resources. The proposed interpolation methods which are made up of four one-dimensional linear interpolations and one one-dimensional cubic convolution perform linear-cubic convolution interpolation in horizontal and vertical direction. When compared in aspects of peak signal-to-noise ratio(PSNR), performance time and amount of hardware resources, the proposed interpolation provided better PSNR, low complexity and less hardware resources than bicubic convolution interpolation.
Novel Defog Algorithm via Evaluation of Local Color Saturation
Park, Hyungjo ; Park, Dubok ; Ko, Hanseok ;
Journal of the Institute of Electronics and Information Engineers, volume 51, issue 3, 2014, Pages 119~128
DOI : 10.5573/ieie.2014.51.3.119
This paper presents a new method for improving the quality of images corrupted by an external source that generates an attenuation and scattering of light like dust, water droplets and fog. Conventional defog methods typically encounter a distortion such that the restored image has low contrast and oversaturation of color in some regions because of the mis-estimated airlight and wrong media transmission. Therefore, in order to mitigate these problems, we propose a robust airlight selection method and local saturation evaluation method for estimating media transmission. The proposed method addresses the wrong media transmission and over-saturation problems caused by the mis-estimated airlight and thereby improves the restored image quality. The results of relevant experiments of the proposed method against conventional ones confirm the improved accuracy of atmospheric light estimation and the quality of restored images with regard to objective and subjective performance measures.
A Fast Intra Prediction Method Using Quadtree Structure and SATD in HEVC Encoder
Kim, Youngjo ; Kim, Jaeseok ;
Journal of the Institute of Electronics and Information Engineers, volume 51, issue 3, 2014, Pages 129~138
DOI : 10.5573/ieie.2014.51.3.129
This paper proposes a fast intra prediction method to reduce encoding time for the HEVC(high-efficiency video coding) encoder. The proposed fast Intra prediction method uses quadtree structure and SATD(Sum of Absolute Transformed Differences). In HEVC, a
SATD value using
hadamard transform is used to calculate a SATD value for
or larger blocks. The proposed method calculates the best SATD value by using each
SATD result in
or larger blocks. After that, the proposed method removes a candidate mode for RDO(Rate-Distortion Optimization) based on comparing SATD of the candidate mode and the best SATD. By removing candidate modes, the proposed method reduces the operation of RDO and reduces total encoding time. In
block, the proposed method uses additional
SATD to calculat the best SATD. The experimental results show that the proposed method achieved 5.08% reduction in encoding time compared to the HEVC test model 12.1 encoder with almost no loss in compression performance.
Simplified DC Calculation Method for Simplified Depth Coding Mode of 3D High Efficiency Video Coding
Jo, Hyunho ; Lee, Jin Young ; Choi, Byeongdoo ; Sim, Donggyu ;
Journal of the Institute of Electronics and Information Engineers, volume 51, issue 3, 2014, Pages 139~143
DOI : 10.5573/ieie.2014.51.3.139
This paper proposes a simplified DC calculation method for simplified depth coding (SDC) mode of 3D High Efficiency Video Coding (3D-HEVC) to reduce the computational complexity. For the computational complexity reduction, the current reference software of 3D-HEVC employs reference samples sub-sampling method. However, accumulation, branch, and division operations are still utilized and these operations increase computational complexity. The proposed method calculates DC value without those operations. The experimental results show that the proposed method achieves 0.1% coding gain for synthesized views in common test condition (CTC) with the significantly reduced number of computing operations.
Design and Implementation of Chronic Disease Risk Analysis System according to Personalized Food Intake Preferences
Jeon, So Hye ; Kim, Nam Hyun ;
Journal of the Institute of Electronics and Information Engineers, volume 51, issue 3, 2014, Pages 147~155
DOI : 10.5573/ieie.2014.51.3.147
While variety of content on the internet has increased with the development of IT and person`s needs about suitable information are increasing rapidly, studies for personalized service have been actively performed. In the study, we proposed the Hypertension and Diabetes risk analysis system according to personal food intake preference using the analysis method of buying preferences in product recommendation system. For the analysis of food intake preference, the Pearson correlation coefficient is used to calculate similarity weights between each reference analysis data and sample data and then reference data should be grouping into the similarity weights and calculating risk of hypertension and diabetes each group. To evaluate the significance of this system, 1,021 subjects are applied the system. Hypertension and diabetes groups` risk is significant higher than normal group statistically so, it is confirmed that food intake preference and the diseases were relevant. In this paper, we verify the validity of hypertension and diabetes risk analysis system using a personal food intake preference.
A Study of Dynamic Performance Improvement of Linear Compressors Using Phase Control Loop
Nam, Jae-Woo ; Oh, Joon-Tae ; Kim, Gyu-Sik ;
Journal of the Institute of Electronics and Information Engineers, volume 51, issue 3, 2014, Pages 156~163
DOI : 10.5573/ieie.2014.51.3.156
In this paper, a phase control system has been implemented to improve the dynamic performance of the stroke response for linear compressors. In order to control the cooling capability of a refrigerator or an air conditioner in which liner compressors are applied, the piston speed should be controlled. The piston speed control can be obtained by adjusting the frequency or the stroke of linear motors. The dynamic performance of linear compressors depends on how accurately the stroke or the piston amplitude is estimated. A phase control system is added to the stroke control loop and the superior performance of the phase control system is verified via some simulation studies.
A Framework of Recognition and Tracking for Underwater Objects based on Sonar Images : Part 2. Design and Implementation of Realtime Framework using Probabilistic Candidate Selection
Lee, Yeongjun ; Kim, Tae Gyun ; Lee, Jihong ; Choi, Hyun-Taek ;
Journal of the Institute of Electronics and Information Engineers, volume 51, issue 3, 2014, Pages 164~173
DOI : 10.5573/ieie.2014.51.3.164
In underwater robotics, vision would be a key element for recognition in underwater environments. However, due to turbidity an underwater optical camera is rarely available. An underwater imaging sonar, as an alternative, delivers low quality sonar images which are not stable and accurate enough to find out natural objects by image processing. For this, artificial landmarks based on the characteristics of ultrasonic waves and their recognition method by a shape matrix transformation were proposed and were proven in Part 1. But, this is not working properly in undulating and dynamically noisy sea-bottom. To solve this, we propose a framework providing a selection phase of likelihood candidates, a selection phase for final candidates, recognition phase and tracking phase in sequence images, where a particle filter based selection mechanism to eliminate fake candidates and a mean shift based tracking algorithm are also proposed. All 4 steps are running in parallel and real-time processing. The proposed framework is flexible to add and to modify internal algorithms. A pool test and sea trial are carried out to prove the performance, and detail analysis of experimental results are done. Information is obtained from tracking phase such as relative distance, bearing will be expected to be used for control and navigation of underwater robots.
Fluorine Effects on CMOS Transistors in WSix-Dual Poly Gate Structure
Choi, Deuk-Sung ; Jeong, Seung-Hyun ; Choi, Kang-Sik ;
Journal of the Institute of Electronics and Information Engineers, volume 51, issue 3, 2014, Pages 177~184
DOI : 10.5573/ieie.2014.51.3.177
In chemical vapor deposition(CVD) tungsten silicide(WSix) dual poly gate(DPG) scheme, we observed the fluorine effects on gate oxide using the electrical and physical measurements. It is found that in fluorine-rich WSix NMOS transistors, the gate thickness decreases as gate length is reduced, and it intensifies the roll-off properties of transistor. This is because the fluorine diffuses laterally from WSix to the gate sidewall oxide in addition to its vertical diffusion to the gate oxide during gate re-oxidation process. When the channel length is very small, the gate oxide thickness is further reduced due to a relative increase of the lateral diffusion than the vertical diffusion. In PMOS transistors, it is observed that boron of background dopoing in
poly retards fluorine diffusion into the gate oxide. Thus, it is suppressed the fluorine effects on gate oxide thickness with the channel length dependency.
Development of 4-Channel Particle Counter based on bluetooth Supporting FMS
Ohm, Woo-Yong ; Ku, Ja-Yl ; Park, Sung-Wook ;
Journal of the Institute of Electronics and Information Engineers, volume 51, issue 3, 2014, Pages 185~193
DOI : 10.5573/ieie.2014.51.3.185
In this paper, we developed a 4-channel particle counter for measuring particles, temperature, humidity in production facilities of clean-room environment, and the measured data can be transmitted via bluetooth. To measure the particle size ranging 0.3um~5um, we designed optical lens, particle detection chamber and multi-channel particle detection circuit. And we also developed a FMS program for real-time monitoring of measuring data, which resulted in the stable operation.
A Study and Design of Beam Scanning Array Antenna using IR-UWB
Kim, Keun-Yong ; Kang, Eun-Kyun ; Kim, Jin-Woo ; Ra, Keuk-Whan ;
Journal of the Institute of Electronics and Information Engineers, volume 51, issue 3, 2014, Pages 194~201
DOI : 10.5573/ieie.2014.51.3.194
This paper is able to be solved by improving degradation in multi-path environment by adjust beam pattern angle through modifying pulse phase of each antennas by using TRM (Transmitter Receiver Module). Beam Scanning Array Antenna, which is transmitter/receiver that improves degradation in multi-path environment without any signal distortion, is designed and manufactured. Beam Scanning Array Antenna should be able to send/receive signal at the antenna`s longitudinal part without distortion and should not influences other systems. Also, it should include target detecting ability by beam steering.Dispersion characteristic of Beam Scanning Antenna, which is designed, is analysed by using fidelity, and steering and radar resolution performance is verified by using
sized target. To manufacture Beam Scanning Array Antenna, control board and GUI, which is able to control Vivaldi Antenna for IR-UWB, Tri-Band Wilkinson power divider, and TRM (Transmitter Receiver Module), is designed. Throughout this research, developed Beam Scanning UWB Array Antenna system is adoptable for radar application field. and time domain analysis techniques by using network analyser made the antenna characteristics analysis for setting up antenna more accurate. In addition, it makes beam width checking without difficulties.
Analysis of the Effects by Multi-Stacking of Superstrates on Circular-Polarized Patch Antenna
Lee, Sangrok ;
Journal of the Institute of Electronics and Information Engineers, volume 51, issue 3, 2014, Pages 202~209
DOI : 10.5573/ieie.2014.51.3.202
In this paper, we analyzed the effects by multi-stacking superstrates over the circular-polarized patch antenna. The previous works considered a single-layered superstrate or a superstrate with multiple layers, and did not almost consider the axial ratio at the performance analysis. First, the effect of center frequency shift is analyzed by the variation of air-gap height between patch antenna and superstrate. The center frequency is down-shifted at the smaller air-gap height and has almost the same frequency as patch antenna at the air-gap height of
. Second, the antenna performance is analyzed by multi-stacking superstrates with the air-gap height of
. As the number of multi-stacked superstrates increase, antenna gain has a linear increase and axial ratio is exponentially deteriorated. In addition, it has also been observed that the antenna performance has the same trend with the number of multi-stacked superstrates as the thickness of superstrate increases. Finally, we confirmed that it is possible to design the CP patch antenna with the scalable gain and less than 3dB axial ratio by stacking the superstrate.