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REFERENCE LINKING PLATFORM OF KOREA S&T JOURNALS
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Journal of information and communication convergence engineering
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Journal DOI :
The Korean Institute of Information and Commucation Engineering
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Volume & Issues
Volume 8, Issue 6 - Dec 2010
Volume 8, Issue 5 - Oct 2010
Volume 8, Issue 4 - Aug 2010
Volume 8, Issue 3 - Jun 2010
Volume 8, Issue 2 - Apr 2010
Volume 8, Issue 1 - Feb 2010
Selecting the target year
A Study on the Web-based Distributed Design Application in the Preliminary Ship Design
Park, Chang-Kyu ;
Journal of information and communication convergence engineering, volume 8, issue 5, 2010, Pages 473~478
DOI : 10.6109/jicce.2010.8.5.473
Today`s engineering design is carried out in a distributed fashion geographically or physically. This places new requirements on the computational environments such as efficient integration and collaboration. With the advances of the Internet and Network environment recently, many researches have been proposed and at the same time, Web-based distributed design gives to a new paradigm in design and manufacturing fields. That is, Web-based technologies lead to reduce the product development times and to ensure a competitive product in order to exchange and interact of real-time design information that integrates the distributed design environment between departments as well as companies via Internet and Web. So, an efficient data communication for design information sharing is the foundation for collaborative systems in the distributed environment. Design data communication techniques such as CORBA, DCOM and RMI have been considered in the existing research but they have some problems that are limitations of interoperability and firewall problems in the Web. Therefore, this paper presents a Web-based distributed design application where distributed design information resources are integrated and exchanged using Web Services for supporting XML and HTTP without the interoperability and firewall problems through the 330K VLCC case.
Development of a Web-based MDO Framework for Design and Analysis Integration
Park, Chang-Kyu ;
Journal of information and communication convergence engineering, volume 8, issue 5, 2010, Pages 479~483
DOI : 10.6109/jicce.2010.8.5.479
The rapid progress of the Internet and network is affecting the engineering design environment as well as business that use Web technologies to enhance their competitive edge. In product development, experts and organization who take part in the design process are often geographically dispersed. Furthermore, different divisions and business often have heterogeneous CAD/CAE systems and methods for expressing product data, and addressing this heterogeneity creates additional costs and increases development time. Managing distributed CAD, CAE and other related systems in an organic and holistic manner from the initial stages of product development is imperative to ensure successful collaboration in the design process. Therefore, this study suggests a Web-based MDO framework to support interfacing and collective use of design and analysis tools.
A Compact Tunable Bandpass Filter Using Coupled Metamaterial Resonators with Varactor Diode
Kim, Gi-Rae ;
Journal of information and communication convergence engineering, volume 8, issue 5, 2010, Pages 484~488
DOI : 10.6109/jicce.2010.8.5.484
In this paper, we present a novel tunable microstrip bandpass filter based on split ring resonators (SRRs). The varactors are reverse-biased semiconductor diode, and are connected between the concentric rings of the SRR. An individual varactor loaded SRR based bandpass tunable filter module is analyzed. Then a second order tunable filter with 7% fractional bandwidth and a tuning range from 2.75 to 2.86 GHz is assembled from basic filter modules. The simulator HFSS (V10) is used to design the tunable filter and to simulate. The results show good characteristics is created.
Design of Planar-Type Modified Folded Loop Antennas
Park, Sung-Il ;
Journal of information and communication convergence engineering, volume 8, issue 5, 2010, Pages 489~492
DOI : 10.6109/jicce.2010.8.5.489
This paper proposes the planar-type modified monopole antennas of loop structure. This antenna has an opened center of a conventional closed loop structure with an inside-folded terminal of the loop microstrip line. The size of the proposed antenna was minimized by folding the end of the loop. Also, the reactance value has been minimized by increasing capacitances between the coupled microstrip line. Therefore the proposed antenna has been compacted to about 20% from a conventional loop antenna and has increased its efficiency. The proposed antennas have an omni-directional pattern, the antenna gain was 3.67 [dBi] and the bandwidth was 900 MHz (2.6~3.56 GHz) with VSWR
2 from the simulated and the measured results. The frequency utilization coefficient was 29.9%. These properties could satisfy the S-DMB band.
Implementation of Code Generator of Particle Filter
Lee, Yang-Weon ;
Journal of information and communication convergence engineering, volume 8, issue 5, 2010, Pages 493~497
DOI : 10.6109/jicce.2010.8.5.493
This paper address the problem of tracking multiple objects encountered in many situation in developing condensation algorithms. The difficulty lies on the fact that the implementation of condensation algorithm is not easy for the general users. We propose an automatic code generation program for condensation algorithm using MATLAB tool. It will help for general user who is not familiar with condensation algorithm to apply easily for real system. The merit of this program is that a general industrial engineer can easily simulate the designed system and confirm the its performance on the fly.
Performance of Receive Diversity UWB Systems with Pulse Amplitude and Position Modulation
Kim, Sang-Choon ;
Journal of information and communication convergence engineering, volume 8, issue 5, 2010, Pages 498~501
DOI : 10.6109/jicce.2010.8.5.498
In this paper, we extend ultra-wideband (UWB) single input single output (SISO) systems with a hybrid pulse amplitude and position modulation (PAPM) to single input multiple output (SIMO) systems using receive antenna diversity. The performance of a rake receive diversity combining scheme for UWB SIMO systems with a PAPM is examined in a log-normal multipath fading channel and also compared with that of a time-switched transmit diversity (TSTD) multiple input single output (MISO) system. It is seen that as the number of receive antennas increases, the receive diversity combining system improves the error performance. It is shown that the TSTD UWB MISO systems offer the performance equivalent to the receive diversity combining scheme for SIMO systems.
Event Driven Service with Unified Identification for Next Generation Network
Kim, Dong-Il ; Lee, Soong-Hee ; Kim, Ki-Tae ;
Journal of information and communication convergence engineering, volume 8, issue 5, 2010, Pages 502~507
DOI : 10.6109/jicce.2010.8.5.502
Event driven service (EDS) is one of such services administrating different functions of multiple service providers according to the user situation. This paper first describes the service model of EDS, a User-centric Service for multiple service provider environments over the next generation networks. The multiple provider environments stimulates the unified identifier management, namely unified identification (U-ID), to enable users to be provided network services without awareness of multiple providers. Combining these two concepts, i.e., EDS and U-ID, the designed structure of EDS with U-ID and related procedures are given. Finally, the implementation results tested on Korea Advanced Research Network (KOREN) are described.
Comparison of Architectures Supporting Emergency Services for VOIP Services
Lee, Kye-Sang ;
Journal of information and communication convergence engineering, volume 8, issue 5, 2010, Pages 508~512
DOI : 10.6109/jicce.2010.8.5.508
Supporting emergency services (ES) for VOIP services in the Internet is a critical feature. It requires international standards since the VOIP services over the Internet has no national boundaries. Recently, standard development organizations such as the IETF, the IEEE 802 committee and the WiMAX Forum (WMF) have worked on this issue. In this paper, we review and compare ES architectures proposed by the IETF and the WMF, and summarize the IEEE 802`s relevant activities.
Reservation and Status Sensing Multiple Access Protocol in Slotted CDMA Systems
Lim, In-Taek ; Ryu, Young-Tae ;
Journal of information and communication convergence engineering, volume 8, issue 5, 2010, Pages 513~518
DOI : 10.6109/jicce.2010.8.5.513
This paper proposes a medium access control protocol for integrated voice and data services in slotted CDMA systems. The proposed protocol, which is named as RCSSMA (Reservation Code and Status Sensing Multiple Access), adopts a code reservation and status sensing schemes. RCSSMA protocol gives higher access priority to the voice traffic than data traffic for reducing the packet dropping probability. The voice terminal reserves an available spreading code to transmit voice packets during a talkspurt, whereas the data terminal transmits a packet over one of the available spreading codes that are not reserved by the voice terminals. In this protocol, the voice packets never contend with the data packets. Packet dropping probability and average data packet transmission delay are analyzed using a Markov chain model.
Initial Slot-Count Selection Scheme with Tag Number Estimation in Gen-2 RFID System
Lim, In-Taek ; Ryu, Young-Tae ;
Journal of information and communication convergence engineering, volume 8, issue 5, 2010, Pages 519~523
DOI : 10.6109/jicce.2010.8.5.519
In Gen-2 RFID system, the initial value of
, which is the slot-count parameter of Q-algorithm, is not defined in the standard. In this case, if the number of tags within the reader`s identification range is small and we let the initial
be large, the number of empty slot will be large. On the other hand, if we let the initial
be small in spite of many tags, almost all the slots will be collided. As a result, the performance will be declined because the frame size does not converge to the optimal point quickly during the query round. In this paper, we propose a scheme to allocate the optimal initial
through the tag number estimation before the query round begins. Through computer simulations, it is demonstrated that the proposed scheme achieves more stable performance than Gen-2 Q-algorithm.
Study of Alternative Navigation Systems for GNSS in South Korea
Yu, Dong-Hui ;
Journal of information and communication convergence engineering, volume 8, issue 5, 2010, Pages 524~527
DOI : 10.6109/jicce.2010.8.5.524
As the GPS(Global Positioning System) vulnerabilities were introduced, alternative systems to GPS backup have been studied for several years. Enhanced Loran(eLoran) as the worldwide ground-based supplementary radio navigation system was recommended as the cost effective alternative to GPS backup. Many efforts on adoption of eLoran as GPS backup have been presented. The US has been the leading role and announced that 70% enhancement for eLoran was established last year. However, the Obama administration cut off the eLoran budget on the fiscal year 2010 budget proposal while GAO`s reports submitted that GPS service gap would be possible just some years later. Besides the US`s condition, there are still many positive opinions on eLoran to GPS backup. This paper introduces the historical and technical aspects of eLoran and Korea`s research topics.
Development of Ship Data Acquisition Embedded System
Yeo, Ng Yin ; Park, Soo-Hong ;
Journal of information and communication convergence engineering, volume 8, issue 5, 2010, Pages 528~533
DOI : 10.6109/jicce.2010.8.5.528
This research is part of the development of Data Acquisition embedded system that specifically use in ship. The purpose of this data acquisition system mainly is to acquire data from multiple sensors or others related external devices and it will further discuss in this paper. The data collecting, hardware design, software design and the final project outcome of this data acquisition system will be discussed in this paper.
Distributed ECU System Design for High Speed and High Precision Control of a Marine Engine
Lee, Jong-Nyun ;
Journal of information and communication convergence engineering, volume 8, issue 5, 2010, Pages 534~538
DOI : 10.6109/jicce.2010.8.5.534
Efficient control of a marine engine requires an engine control unit (ECU) system that handles fast and precise signal processes for in-coming and out-going signals from fast running engines. In order to handle these roles, the sequential control has been adapted in the ECU system in small and medium size ship engines, which has caused high production cost and complexity of the system. Hence, this paper is focused on developing an distributed ECU system for high speed and high precision control of a marine engine by efficiently combining a CPLD chip and a microprocessor. By sharing load at the MCU with the designed CPLD chip, we could achieve in driving a marine engine with high speed and precise control so that the ECU board has been simplified and its production cost has been reduced.
Fingerprint Image for the Randomness Algorithm
Park, Jong-Min ;
Journal of information and communication convergence engineering, volume 8, issue 5, 2010, Pages 539~543
DOI : 10.6109/jicce.2010.8.5.539
We present a random bit generator that uses fingerprint image for the source of random, and random bit generator using fingerprint image for the randomness has not been presented as yet. Fingerprint image is affected by the operational environments including sensing act, nonuniform contact and inconsistent contact, and these operational environments make FPI to be used for the source of random possible. Our generator produces, on the average, 9,334 bits a fingerprint image in 0.03 second. We have used the NIST SDB14 test suite consisting of sixteen statistical tests for testing the randomness of the bit sequence generated by our generator, and as the result, the bit sequence passes all sixteen statistical tests.
A Derivation of Evaluation Item about Enterprise Security Management
Kim, Sun-Joo ; Jo, In-June ;
Journal of information and communication convergence engineering, volume 8, issue 5, 2010, Pages 544~548
DOI : 10.6109/jicce.2010.8.5.544
The Enterprise Security Management system is a centralized control system based on predefined security policies by organizations. In Korea, there is a Common Criteria security certification according to the strict standards for various features. As the needs of information security product are increasing, the ESM system should be evaluated with quality characteristics. In this paper, we propose evaluation items for functionality and performance of Enterprise Security Management system, and the best practices for evaluation.
Practical Attacks on Hybrid Group Key Management for SOHAN
Liew, Jiun-Hau ; Ong, Ivy ; Lee, Sang-Gon ; Lim, Hyo-Taek ; Lee, Hoon-Jae ;
Journal of information and communication convergence engineering, volume 8, issue 5, 2010, Pages 549~553
DOI : 10.6109/jicce.2010.8.5.549
Lim et al. proposed a Hybrid Group Key Management scheme for Hierarchical Self-Organizing Sensor Network in 2008 to provide a secure way to pass down the group key for cluster-based communication. This paper presents two practical attacks on the scheme proposed by Lim et al. by tampering sensor nodes of a cluster to recover necessary secret keys and by exploiting the IDS employed by the scheme. The first attack enables a long-term but slow data fabrication while other attack causes more severe DoS on the access to cluster sensor nodes.
A XML based Communication Framework for In-Vehicle Networks
Kim, Jin-Deog ; Yun, Sang-Du ; Yu, Yun-Sik ;
Journal of information and communication convergence engineering, volume 8, issue 5, 2010, Pages 554~559
DOI : 10.6109/jicce.2010.8.5.554
Recently, various in-vehicle networks have been developed respectively in order to accomplish their own purpose such as CAN and MOST. Various electronic devices for vehicle are controllable by the advent of networks attached to the vehicle. However, the networks also come with a variety of unique features in each network-specific communication which creates difficulty using and supporting the interoperable services among the networks. To solve this problem, each network needs a standard integration framework. In this paper, a framework is proposed and implemented. It consists of a standard protocol using XML to improve compatibility and portability. The framework makes each network interoperable by applying unique information and messages of the network in the XML standard document. The results obtained by implementation show that the framework supports the efficient communication of data between heterogeneous invehicle networks.
A Design of Snoring Detection System using Chaotic Signal
Choo, Yeon-Gyu ;
Journal of information and communication convergence engineering, volume 8, issue 5, 2010, Pages 560~565
DOI : 10.6109/jicce.2010.8.5.560
In this study, the existence of chaotic characteristics in snoring signals obtained in the form of time series data was checked through quantitative and qualitative analysis methods, and a snoring signal detection system was designed applied with detection algorithms considering diverse parameters of occurring signals in order to enhance the accuracy and reliability of detections and the performance of the system was checked. The system was tested with certain snoring patients and thereby the results as follows could be obtained.
Sinusoidal, Pulse, Triangular Oscillator Using Second Generation Current Conveyor
Choi, Jin-Ho ;
Journal of information and communication convergence engineering, volume 8, issue 5, 2010, Pages 566~569
DOI : 10.6109/jicce.2010.8.5.566
This paper describes the sinusoidal, pulse, triangular oscillator using second generation current conveyor. To obtain the sinusoidal waveform the circuit blocks are constructed by using all pass filter and integrator. The pulse and the triangular waveforms are obtained from the output of sinusoidal oscillator. The peak-to-peak voltages of sinusoidal and triangular waveforms can be easily controlled by the dc offset voltage. Also the output frequency of the oscillator can be controlled by varying passive elements. The designed circuit is verified by HSPICE simulation.
Thinning Processor for 160 X 192 Pixel Array Fingerprint Recognition
Jung, Seung-Min ;
Journal of information and communication convergence engineering, volume 8, issue 5, 2010, Pages 570~574
DOI : 10.6109/jicce.2010.8.5.570
A thinning algorithm changes a binary fingerprint image to one pixel width. A thinning stage occupies 40% cycle of 32-bit RISC microprocessor system for a fingerprint identification algorithm. Hardware block processing is more effective than software one in speed, because a thinning algorithm is iteration of simple instructions. This paper describes an effective hardware scheme for thinning stage processing using the Verilog-HDL in
Pixel Array. The ZS algorithm was applied for a thinning stage. The hardware scheme was designed and simulated in RTL. The logic was also synthesized by XST in FPGA environment. Experimental results show the performance of the proposed scheme.
Webcam-Based 2D Eye Gaze Estimation System By Means of Binary Deformable Eyeball Templates
Kim, Jin-Woo ;
Journal of information and communication convergence engineering, volume 8, issue 5, 2010, Pages 575~580
DOI : 10.6109/jicce.2010.8.5.575
Eye gaze as a form of input was primarily developed for users who are unable to use usual interaction devices such as keyboard and the mouse; however, with the increasing accuracy in eye gaze detection with decreasing cost of development, it tends to be a practical interaction method for able-bodied users in soon future as well. This paper explores a low-cost, robust, rotation and illumination independent eye gaze system for gaze enhanced user interfaces. We introduce two brand-new algorithms for fast and sub-pixel precise pupil center detection and 2D Eye Gaze estimation by means of deformable template matching methodology. In this paper, we propose a new algorithm based on the deformable angular integral search algorithm based on minimum intensity value to localize eyeball (iris outer boundary) in gray scale eye region images. Basically, it finds the center of the pupil in order to use it in our second proposed algorithm which is about 2D eye gaze tracking. First, we detect the eye regions by means of Intel OpenCV AdaBoost Haar cascade classifiers and assign the approximate size of eyeball depending on the eye region size. Secondly, using DAISMI (Deformable Angular Integral Search by Minimum Intensity) algorithm, pupil center is detected. Then, by using the percentage of black pixels over eyeball circle area, we convert the image into binary (Black and white color) for being used in the next part: DTBGE (Deformable Template based 2D Gaze Estimation) algorithm. Finally, using DTBGE algorithm, initial pupil center coordinates are assigned and DTBGE creates new pupil center coordinates and estimates the final gaze directions and eyeball size. We have performed extensive experiments and achieved very encouraging results. Finally, we discuss the effectiveness of the proposed method through several experimental results.
Restoration of Chest X-ray by Kalman Filter
Kim, Jin-Woo ;
Journal of information and communication convergence engineering, volume 8, issue 5, 2010, Pages 581~585
DOI : 10.6109/jicce.2010.8.5.581
A grid was sandwiched between two cascaded imaging plates. Using a fan-beam X-ray tube and a single exposure scheme, the two imaging plates, respectively, recorded grid-less and grid type information of the object. Referring to the mathematical model of the Grid-less and grid technique, it was explained that the collected components whereas that of imaging plates with grid was of high together with large scattered components whereas that of imaging plate with grid was of low and suppressed scattered components. Based on this assumption and using a Gaussian convolution kernel representing the effect of scattering, the related data of the imaging plates were simulated by computer. These observed data were then employed in the developed post-processing estimation and restoration (kalman-filter) algorithms and accordingly, the quality of the resultant image was effectively improved.
A Patient Treatment System Using RFID and Internet Communication
Jo, Heung-Kuk ;
Journal of information and communication convergence engineering, volume 8, issue 5, 2010, Pages 586~590
DOI : 10.6109/jicce.2010.8.5.586
Medical technology is gradually being developed by applying information technologies. Especially, RFID technology is being used for precise disease history information of patients . And in case the patient is far away, the patient can be treated using network communication of the internet . The internet makes us to treat or operate the patient without being restricted to time or space. If the above technologies are made as a system, the patient can be treated or operated without being restricted to time or space. In this paper, we present a patient treatment system has been implemented with a system using RFID and network communication of the internet . The system is driven as follows. First, the information of patient can be checked from a remote PC, if the tag that a patient has been read through a reader. And a remote treatment is performed by controlling robot`s arm with a joystick using internet network . The RFID system was implemented in frequency of 125 KHz . The information of patient can be checked with PDA, PC and C-LCD using Bluetooth and WLAN . For the treatment and operation of the patient, the robot`s arm has been formed using AX-12 motor, joystick and two buttons  .
A Study for Medical Precision Control Machine Using AX-12
Jo, Heung-Kuk ;
Journal of information and communication convergence engineering, volume 8, issue 5, 2010, Pages 591~594
DOI : 10.6109/jicce.2010.8.5.591
Control devices perform various works for us in many areas. The device is being utilized for precision movement of certain object. In as much as control devices are activated by means of motors, motor control is important. Generally, servo motors capable of precision control are more frequently used than DC motors. Use of 3 motors allows 3- way movement. Medical controllers for surgical operation require high precision.  AX-12, a servo motor can realize various types of movement. AX-12 can be easily manufactured in the form of a robotic arm and has features that MCU and its peripheral circuits are simple. For precision movement, 3 motors can be controlled by use of a single joystick and 2 buttons, with movement angles being adjusted by having preset values in the program changed. By virtue of this study, we have realized small precision robotic arm system utilizing single joystick and 2 buttons. This system can control the robotic arm in the direction desired by the user. The system has been designed such that a joystick controls 2 motors with the remaining motor being controlled by a button. Single MCU is tasked with both control and movement. We have shown precision robotic arm system in the Figure contained in the conclusion part and made reference to results of analysis in there. It has also been demonstrated that the system can be utilized in the industry.
A Study on the Value Change of Digital Image According to Digital Technology
Choi, Won-Ho ; Kim, Chee-Yong ;
Journal of information and communication convergence engineering, volume 8, issue 5, 2010, Pages 595~601
DOI : 10.6109/jicce.2010.8.5.595
The strategy through visual sense is one of the ways that subject builds the outside world and communicates. The visual sense seems higher level of dependence than the other senses and contributes to intercommunication. For this reason, the desire of image dates back to primitive art and visual image(visual media and visual culture) has dialectically developed in the history of mankind. Visual subject, based on perspective of Renaissance, was moved from God to human beings. Andre Bazin`s `la genese automatique` through technical art has epochally changed the paradigm of visual art and visual culture. From primitive art to photo and film, the image, based on visual sense, has reflected human wish, appealed visual desire and led to evolution of image. In the late 20 century, without dialectical evolution of technology and culture, rapidly progressive digital image has changed social and cultural implication over rational strategy of production and distribution and it strengthened authority of image through visual approach of endless desire. The goal of this study is to analyze the value change of digital image developing a new Renaissance through production, reading, communication, and implication of evolution due to digitalized image, which has evolved as object and tool of desire.
Mathematical Algorithms for Two-Dimensional Positioning Based on GPS Pseudorange Technique
Ko, Kwang-Soob ; Choi, Chang-Mook ;
Journal of information and communication convergence engineering, volume 8, issue 5, 2010, Pages 602~607
DOI : 10.6109/jicce.2010.8.5.602
Recently, one has realized that the threedimensional positioning technique used in GPS can be effectively applied to the modern two-dimensional positioning. Such a technique might has applied to the twodimensional positioning in fields of the mobile communication, eLORAN and the GPS jamming/ electronic warfare system. In the paper, we have studied on algorithms for two-dimensional positioning based on GPS Pseudorange Technique. The main works and results are summarized below. First, the linearized state equation was mathematically derived based on GPS pseudorange technique. Second, the geometry model with respect to triangles formed using unit-vectors were proposed for investigation of land-based radio positioning. Finally, the corresponding mathematical formulations for DOP values and covariance matrix were designed for two-dimensional positioning.