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REFERENCE LINKING PLATFORM OF KOREA S&T JOURNALS
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The Journal of Korean Institute of Communications and Information Sciences
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The Korean Institute of Communications and Information Sciences
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Volume & Issues
Volume 39C, Issue 12 - Dec 2014
Volume 39B, Issue 12 - Dec 2014
Volume 39A, Issue 12 - Dec 2014
Volume 39C, Issue 11 - Nov 2014
Volume 39B, Issue 11 - Nov 2014
Volume 39A, Issue 11 - Nov 2014
Volume 39C, Issue 10 - Oct 2014
Volume 39B, Issue 10 - Oct 2014
Volume 39A, Issue 10 - Oct 2014
Volume 39C, Issue 9 - Sep 2014
Volume 39B, Issue 9 - Sep 2014
Volume 39A, Issue 9 - Sep 2014
Volume 39C, Issue 8 - Aug 2014
Volume 39B, Issue 8 - Aug 2014
Volume 39A, Issue 8 - Aug 2014
Volume 39C, Issue 7 - Jul 2014
Volume 39B, Issue 7 - Jul 2014
Volume 39A, Issue 7 - Jul 2014
Volume 39C, Issue 6 - Jun 2014
Volume 39B, Issue 6 - Jun 2014
Volume 39A, Issue 6 - Jun 2014
Volume 39C, Issue 5 - May 2014
Volume 39B, Issue 5 - May 2014
Volume 39A, Issue 5 - May 2014
Volume 39C, Issue 4 - Apr 2014
Volume 39B, Issue 4 - Apr 2014
Volume 39A, Issue 4 - Apr 2014
Volume 39C, Issue 3 - Mar 2014
Volume 39B, Issue 3 - Mar 2014
Volume 39A, Issue 3 - Mar 2014
Volume 39C, Issue 2 - Feb 2014
Volume 39B, Issue 2 - Feb 2014
Volume 39A, Issue 2 - Feb 2014
Volume 39C, Issue 1 - Jan 2014
Volume 39B, Issue 1 - Jan 2014
Volume 39A, Issue 1 - Jan 2014
Selecting the target year
Auto Sushi Conveyer-Belt Payment System Using UHF RFID Dishes
Nam, Seahyeon ; Yim, Yongho ; Jung, Haeyong ; Seok, Juwan ; Chung, You Chung ;
The Journal of Korean Institute of Communications and Information Sciences, volume 39C, issue 12, 2014, Pages 1225~1229
DOI : 10.7840/kics.2014.39C.12.1225
This paper introduces a development of the auto sushi conveyer-belt payment system using UHF RFID dishes. In a sushi bar, instead of counting the number of the finished sushi dishes, sushi dishes with the UHF RFID have been used in the auto payment system to have accuracy and convenience. To recognize each dish, the UHF RFID tag has been designed, and auto-payment system has been developed. The UHF RFID tag under the dish has been recognized by an RFID reader, and the auto RFID payment system shows the total price of the finished dishes based on the color and number of dishes automatically. The performance of the developed UHF RFID tag and auto RFID payment system have been measured and verified.
Technological Trend and Patents for Modular Smartphone
Park, Jong-Man ;
The Journal of Korean Institute of Communications and Information Sciences, volume 39C, issue 12, 2014, Pages 1230~1242
DOI : 10.7840/kics.2014.39C.12.1230
There might be still weakness in domestic R&D of DIY based modular smart phone and device to cope effectively with post smartphone era. Currently, it is essential for us to provide technology development and countermeasure way against subversive influence that development and commercial release of Google's modular smartphone can cause in such ecology. This paper focused to suggest binding assignment and technology prospect required in promoting industrialization related with IoT and deducing the global countermeasure ways through investigation and analysis about advanced technology and patents of modular smart phone and devices. Description includes introduction, technology outline, technology and patent trend, conclusion.
A System Design Method of Mine Warfare Using Information for SONAR and MDV
Kim, Jun-Young ; Shin, Chang-Hong ; Kim, Kyung-Hee ;
The Journal of Korean Institute of Communications and Information Sciences, volume 39C, issue 12, 2014, Pages 1243~1249
DOI : 10.7840/kics.2014.39C.12.1243
The naval mine is the explosives that are installed in the water in order to attack surface ships or submarines. So mine warfare is a very important component of naval operations. In this paper, first, understanding of the general concept about mine warfare. Second, introduce the mine hunting progress and mine sweeping progress. And then, suggest the system design method of mine counter measure warfare using several functions. The functions are mine area detection algorithm for side scan sonar image using Adaboost algorithm, and calculation to mine hunting progress rate and mine sweeping progress rate. And techniques that lead the mine disposal vehicle(MDV) to mine.
A Resource Scheduling Based on Iterative Sorting for Long-Distance Airborne Tactical Communication in Hub Network
Lee, Kyunghoon ; Lee, Dong Hun ; Lee, Dae-Hong ; Jung, Sung-Jin ; Choi, Hyung-Jin ;
The Journal of Korean Institute of Communications and Information Sciences, volume 39C, issue 12, 2014, Pages 1250~1260
DOI : 10.7840/kics.2014.39C.12.1250
In this paper, a novel resource scheduling, which is used for hub network based long distance airborne tactical communication, is proposed. Recently, some countries of the world has concentrated on developing data rate and networking performance of CDL, striving to keep pace with modern warfare, which is changed into NCW. And our government has also developed the next generation high capacity CDL. In hub network, a typical communication structure of CDL, hybrid FDMA/TDMA can be considered to exchange high rate data among multiple UAVs simultaneously, within limited bandwidth. However, due to different RTT and traffic size of UAV, idle time resource and unnecessary packet transmission delay can occur. And these losses can reduce entire efficiency of hub network in long distance communication. Therefore, in this paper, we propose RTT and data traffic size based UAV scheduling, which selects time/frequency resource of UAVs by using iterative sorting algorithm. The simulation results verified that the proposed scheme improves data rate and packet delay performance in low complexity.
Proposal Scheme of a D2D Communication in Smart Shipyard
Kim, Su-Hyun ; Lee, Seong Ro ; Min, Sang-Won ;
The Journal of Korean Institute of Communications and Information Sciences, volume 39C, issue 12, 2014, Pages 1261~1266
DOI : 10.7840/kics.2014.39C.12.1261
Smart shipyard, all of the business of shipyard by using a mobile application, and the rapid spread of smart equipment, the overload of infrastructure due to a variety of mobile services is expected. Because macrocell and femtecell to reduce the overloading of existing infrastructure, additional core network devices have a problem, in this paper, the efficiency of resources than the communication over the existing infrastructure smart shipyard network to improve, to apply the D2D communication technology that can reduce the load on the infrastructure. The proposed routing path plan in accordance with the transfer method and the traffic type of network configuration and D2D equipment navigation and data for applying a smart shipyard. Whether to execute the function to overload traffic in the core network can send to the optimized path was confirmed by using the state transition diagram. Smart shipyard, by applying D2D communication allow efficient traffic handling than conventional communication method.
An Analysis on Short-Range-Radar Characteristic for Developing Object Detecting System
Park, Dong-Jin ; Ryu, In-Hwan ; Byun, Ki-Hoon ; Lee, Sang-Min ; Kwon, Jang-Woo ;
The Journal of Korean Institute of Communications and Information Sciences, volume 39C, issue 12, 2014, Pages 1267~1279
DOI : 10.7840/kics.2014.39C.12.1267
In this paper, we suggest the development of object detection systems for the safety of the ship through the study of the properties of short-range radar. Many of the short-range radars developed for special purpose like cars has cheaper price advantages but it is not proper to every application. In order to overcome such obstacles we need to analysis data from experiments in various environments and feature analysis of the device is essential. Also, the data clustering algorithms to display correct classified moving objects is necessary. In this paper we propose the advanced fast moving object detection system using short range radars with better detection accuracy. And we proposed a clustering algorithm using the value of the RCS and the speed and trajectory information of the radar data that are reflected.
Channel Resource Allocation Scheme Provided for Fair QoS in ECMA-392-Based Ship Area Networks
Lee, Seung Beom ; Back, Jong Sang ; Park, Soonyoung ; Lee, Seong Ro ;
The Journal of Korean Institute of Communications and Information Sciences, volume 39C, issue 12, 2014, Pages 1280~1288
DOI : 10.7840/kics.2014.39C.12.1280
In this paper, we use the ECMA-392 standard, the first cognitive radio networks to meet the demand for IT services in the ship. First, we learn about ECMA-392-based network and examine the consideration and the problems for assigning channels to the device. And, we propose a fair channel resource allocation to ensure efficiently channel required by device groups in ECMA-392 MAC protocol. This is a method to reallocate the channels fairly with considering the channel assignment parameters to a new device group and existing device groups. The simulation results show that the proposed scheme improves throughputs compared to the existing one.
ECMA-392 Cooperative MAC Protocol for QoS Guarantee in Multi-Hop Wireless Bridge in Ship Area
Lee, Seung Beom ; Jeong, Hwan-Jong ; Jeong, Min-A ; Lee, Yeonwoo ; Lee, Seong Ro ;
The Journal of Korean Institute of Communications and Information Sciences, volume 39C, issue 12, 2014, Pages 1289~1297
DOI : 10.7840/kics.2014.39C.12.1289
In this paper, we use the ECMA-392 standard, the first cognitive radio networks to meet the demand for IT services in the ship. We propose a ECMA-392 cooperative MAC protocol to ensure QoS to support multimedia services in the ship area in a multi-hop wireless bridge using ECMA-392 networks. Because the proposed protocol transmits directly or relay transmission by selecting efficient routes based on the information of the ECMA-392 devices, it provides communication to ensure QoS of the device. The simulation results show that the proposed cooperative MAC protocol improves a throughput of devices compared to the existing method.
Resolution Scheme of CRP Reservation Conflicts for Supporting QoS in ECMA-392-Based Ship Area Networks
Lee, Seong Ro ; Oh, Joo-Seong ; Kim, Beom-Mu ; Lee, Yeonwoo ; Jeong, Min-A ; Lee, Seung Beom ;
The Journal of Korean Institute of Communications and Information Sciences, volume 39C, issue 12, 2014, Pages 1298~1306
DOI : 10.7840/kics.2014.39C.12.1298
In this paper, we use the ECMA-392 standard, the first cognitive radio networks to meet the demand for IT services in the ship. And, we investigate about the conflicts of devices that support multi-hop network based on the ECMA-392. Therefore, we propose the resolution scheme of CRP reservation conflicts to solve this. The current CRP reservation approaches does not solve the CRP reservation conflicts of ECMA-392 between devices that move at a distance of three hops. Therefore, it is not possible to guarantee the QoS of real time services such as multimedia streaming. So, we provide a new CRP reservation scheme to avoid conflict through a new 2-hop CRP Availability IE and the change of CRP Control field. From the simulation results, we know that the proposed method of 3 hops CRP reservation conflicts resolution improves the throughput of device.
Design and Implementation of Tapered Slot Antenna for Ship's Indoor Location-Aware System
Choi, Dong-You ; Kim, Sun-Woong ; Park, Jung-Jin ; Jeong, Min-A ; Lee, Seong Ro ;
The Journal of Korean Institute of Communications and Information Sciences, volume 39C, issue 12, 2014, Pages 1307~1313
DOI : 10.7840/kics.2014.39C.12.1307
In this paper, we have proposed a tapered slot antenna for IR-UWB communication system suitable of indoor positioning in the building. The designed tapered slot antenna is designed using Ansys Inc. HFSS and its standing wave ratio, return loss, and radiation pattern is analyzed. In 2.36 GHz ~ 5.51 GHz and, the designed antenna shows satisfactory return loss at -10 dB and meets the requirement of
. The presented designed showed a higher sensitivity for the end-fire propagation characteristics in a specific direction across all bands of the radiation pattern.
Design of Dual-Band Microstrip Antenna for Marine Telecommunication
Choi, Jo-Cheon ; Lee, Gwang-Bok ; Kim, Kab-Ki ; Lee, Seong Ro ;
The Journal of Korean Institute of Communications and Information Sciences, volume 39C, issue 12, 2014, Pages 1314~1317
DOI : 10.7840/kics.2014.39C.12.1314
In this letter, we designed monopole microstrip antenna for WLAN / WiMAX system. The monopole antenna is designed by FR-4 substrate with size is
. The proposed antenna is based on a planar monopole design which cover WLAN and WiMAX frequency bands. To obtainthe optimized parameters, we used the simulator, CST's Microwave Studio Program and found the parameters that greatly effect antenna characteristics. Using the obtained parameters, the antenna is designed. Thus the proposed antenna satisfied the -10 dB impedance bandwidth requirement while simultaneously covering the WLAN and WiMAX bands. And characteristics of gain and radiation patterns are obtained for WLAN/WiMAX frequency bands.
Development of Next Generation Sonar by Acoustic Lens
Choi, Jo-Cheon ; Kim, Sang-Hoon ; Lee, Seong Ro ;
The Journal of Korean Institute of Communications and Information Sciences, volume 39C, issue 12, 2014, Pages 1318~1322
DOI : 10.7840/kics.2014.39C.12.1318
We develop new sonar system by way of acoustic focusing which is totally different from conventional one in principle. It focuses input wave on the opposite edge of the lens without aberration perfectly. Then, the motion of acoustic source is read by naked eyes. It can be used as an acoustic window deep underwater by converting sound into light. We introduce the sonar in actual size that can be used underwater and report current situation of the development.
Performance Comparisons of Two Inner Coding Structures in Concatenated Codes for Wireless Multimedia / Multicast Transmission on Shipboard
Lee, Ye Hoon ; Lee, Seong Ro ;
The Journal of Korean Institute of Communications and Information Sciences, volume 39C, issue 12, 2014, Pages 1323~1326
DOI : 10.7840/kics.2014.39C.12.1323
In this letter, we compare the performance of two concatenated coding structures in slow FH/SS systems for multimedia/multicast transmission on shipboard. Two outer code symbols are transmitted during a hop. The first structure consists of one inner codeword per one outer code symbol, while the second structure consists of one inner codeword per two outer code symbols. We analyze the overall block error probability in asymptotic region and show that the performance of the second scheme is superior to the first one.
A Tx-Rx Beam Tracking Technique for Cellular Communication Systems with a mmWave Link
Kim, Kyu Seok ; Lim, Tae Sung ; Choi, Joo Hyung ; Cho, Yong Soo ;
The Journal of Korean Institute of Communications and Information Sciences, volume 39C, issue 12, 2014, Pages 1327~1337
DOI : 10.7840/kics.2014.39C.12.1327
In cellular communication systems employing millimeter wave (mmWave) bands for a link, a large amount of training time and network resources will be required to find a serving BS with the best transmit and receive (Tx-Rx) beam pair if downlink control signals are used. In this paper, a tracking technique for OFDM-based cellular communication systems with a mmWave link, where an analog beamforer is used at the mobile station (MS) and a digital beamformer is used at the BS, is proposed using an uplink signal. A technique to select a serving BS with the best beam pair is described using the uplink preamble sequence based on Zadoff-Chu sequence and a metrics which can be used to identify parameters such as beam ID (BID), MS ID (MID), and direction-of-arrival (DoA). The effectiveness of the proposed technique is verified via simulation with the spatial channel model (SCM) for a moving MS in mmWave cellular systems.
Performance Evaluation of ISA100.11a Superframe Using Deadline Monotonic Scheduling
Saputra, Oka Danil ; Shin, Soo Young ;
The Journal of Korean Institute of Communications and Information Sciences, volume 39C, issue 12, 2014, Pages 1338~1345
DOI : 10.7840/kics.2014.39C.12.1338
Recently, wireless technology gains attention for industrial networks due to low cost, flexibility, relatively easy installation and most importantly, solving the rouring issue. ISA100.11a is one of promising standard for wireless industrial networks (WINs). Data traffic in industrial networks are known to be periodic and must satisfy the real-time property namely deadline. Therefore, in this paper, we proposed to apply deadline monotonic scheduling to periodic tasks in ISA100.11a networks and to evaluate the performance of ISA100.11a by checking the schedulability and beacon frame overhead. Simulation results showns, that our proposed scheme can reduces the network overhead while maintaining schedulability as compared to the previous algorithm. In addition, by reducing the network overhead, our proposed scheme can send more data without degrading the overall performance of WINs.
Spectro-Temporal Filtering Based on Soft Decision for Stereophonic Acoustic Echo Suppression
Lee, Chul Min ; Bae, Soo Hyun ; Kim, Jeung Hun ; Kim, Nam Soo ;
The Journal of Korean Institute of Communications and Information Sciences, volume 39C, issue 12, 2014, Pages 1346~1351
DOI : 10.7840/kics.2014.39C.12.1346
We propose a novel approach for stereophonic acoustic echo suppression using spectro-temporal filtering based on soft decision. Unlike the conventional approaches estimating the echo pathes directly, the proposed technique can estimate stereo echo spectra without any double-talk detector. In order to improve the estimation of echo spectra, the extended power spectrum density matrix and echo overestimation control matrix are applied on this method. In addition, this echo suppression technique is based on soft decision technique using speech absence probability in STFT domain. Experimental results show that the proposed method improves compared with the conventional approaches.
Implications of Incentive Auction : Focusing on key issues in U.S.
Kim, Joohyun ; Kim, Sang-Yong ; Yeo, Jaehyun ;
The Journal of Korean Institute of Communications and Information Sciences, volume 39C, issue 12, 2014, Pages 1352~1361
DOI : 10.7840/kics.2014.39C.12.1352
The Federal Communications Commission (FCC), which regulates interstate and international communications in the United States, has established a plan to allocate high demand spectrum to the usage of mobile communication by inducing voluntary relinquishment from broadcasters. This plan was introduced by the National Broadband Plan as an incentive auction in 2010. The FCC suggested the Notice of Proposed Rulemaking (NPRM) in 2012 and issued Report and Order (R&O) on May 2014 regarding the overall rules of incentive auctions expected to be implemented in mid-2015. The incentive auction attracts the attention of many countries because this policy suggests a novel approach regarding the alteration of use from an inefficient usage to an efficient usage in limited spectrum resources. In this paper, we define the key issues in order for implementation of incentive auction. Since the incentive auction is a highly complicated process compared to previous allocation procedures, a careful review of the incentive auction regarding whether this spectrum policy can be introduced is required. In this paper, we describe the detailed procedure of the incentive auction and present policy considerations for the introduction of the incentive auction.