• Journal of Korea Society of Industrial Information Systems
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• v.28 no.6
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• pp.151-171
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• 2023

For the efficient establishment of a channel strategy for banks, this study aims to propose a channel model by classifying channels into types, and carrying out a correspondence analysis per type. A survey of bankers was conducted to visualize categorical data and create a positioning map. As a result, first, 12 banking channels were classified into 4 types based on business processing subjects and places, which were then, further grouped into the categories of full-banking and self-banking. Second, a correspondence analysis according to the classified types was carried out, and it was found that the branch-type is suitable for product description and customer management, while the banking-type is suitable for efficient business processing without time and space constraints. Furthermore, the analysis also showed that the machine-type and banking-type are inappropriate for customer management, and the mobility-type demonstrates low operational effectiveness due to a lack of awareness. The aforementioned findings suggest the need for a hybrid convergence channel that reflects the characteristics of banking tasks and fills in the gaps between the different channels. Third, a channel model was derived by adding a common area to the 2×2 model consisting of the business processing subjects and places. Therefore, this study is meaningful in that it examines the diversification of channels and factors in the division of roles by channel type based on customers' banking channel selection factors, and presents basic research findings for future channel strategy establishment and efficient channel operation.

• Journal of Advanced Navigation Technology
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• v.28 no.4
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• pp.459-465
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• 2024

The flight control computer applied to manned/unmanned aircraft is one of the key components directly connected to the control of the aircraft, and is generally designed with a redundant architecture so that essential functions for flight can be maintained even if a failure occurs in a single channel. The operational flight program loaded on these redundant flight control computers should be designed considering a time synchronization between channels, input data selection methods from redundant sensors, and fault detection/isolation methods for channels. In this paper, we propose a redundancy management method applied to triplex compact flight control computers for advanced air vehicle. The proposed redundancy management method includes a synchronization algorithm between triplex channels, an input data voting method from sensors, a bus control right selection method for control command output, and a fault detection/isolation method for channels.

• The Journal of the Institute of Internet, Broadcasting and Communication
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• v.9 no.2
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• pp.21-28
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• 2009

To provide IPTV service successfully, we have to guarantee quality of service (QoS). However, in IPTV service, when we change channels, channel zapping delay will cause lower subscriber's satisfaction. Also, we can not provide IPTV service efficiently by limited bandwidth problem. In this paper, we propose a new enhanced IPTV transmission scheme to solve the two types problems using RACR (Robust Aggregation Control Router) which can control bandwidth and channel zapping time.

• Proceedings of the Korean Information Science Society Conference
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• 2011.06a
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• pp.369-372
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• 2011

최근 스마트폰 사용의 증가로 인해 지그비 네트워크는 동일한 주파수 대역을 사용하는 무선랜에 의한 간섭이 심각해졌다. 이와 같이 이기종 네트워크에 의해 발생하는 간섭 문제를 해결하기 위한 채널 호핑 기법의 연구가 활발히 이루어지고 있다. 본 논문에서는 자원 낭비와 패킷 손실을 최소화하기 위해 테이블 기반의 채널 호핑 기법을 제안한다. 제안한 테이블 기반의 채널 호핑 기법은 간섭의 발생을 채널 테이블을 통해 관리하며 이를 기반으로 채널 호핑을 수행한다. 기존 기법과의 성능 비교 실험을 통해 테이블 기반 채널 호핑 기법은 간섭 발생시 빠른 회피가 가능하고 이로 인해 네트워크의 성능을 향상시킬 수 있음을 확인하였다.

• The Journal of Korea Institute of Information, Electronics, and Communication Technology
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• v.11 no.4
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• pp.362-369
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• 2018

In this paper, we propose a procedure to multiple SNS channels automatic streaming through multiple output channels including the output channel of an external streaming server. The multiple SNS channels automatic streaming server includes an output management module for controlling the transmission of video contents to RELAY module that establish two or more output channels. In this paper, we experimented by separate with HD and FHD video using RELAY module in multiple SNS channel automatic streaming. In stream modules using RELAY module of HD video, when the publisher client and the player client and the RELAY module are 1 channel, the occupancy rate of CPU is 0.6% and the occupancy rate of heap memory is 0.3%(20 Mbyte). When the publisher client and the player client and the RELAY module are 183 channels, the occupancy rate of CPU is 99.9% and the occupancy rate of heap memory is 45.8%(3.7Gbyte). Therefore, the paper is not limited to the size of the streaming server by extending the output channel from which the video is transmitted to the output channel of the external streaming server. And a process of allocating an output channel of an external streaming server to an output channel through which an video is transmitted can be easily performed, so that an efficient output channel management can be performed even when a plurality of videos are transmitted.

• Management & Information Systems Review
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• v.33 no.2
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• pp.281-299
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• 2014

This study using a transaction cost approach perspective, this paper presents a model for understanding shopper's buying behavior. Finally, based on the results of these studies, this paper suggests practical implications to companies establishing their management strategy of the channels. In order to achieve the research purpose, it derived hypotheses from the literature studies and conducted questionnaire survey for the buyer who actually purchased by distribution channels. In this paper, 876 of the samples has been used in practice and with those samples it analyzes its empirical testing through reliability verification, validation, factor analysis, correlation analysis and covariance structure analysis.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.9 no.5
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• pp.1002-1011
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• 2005

In this paper. we design and implement a bi-directional broadcasting system, so called return channel server, to allow users to participate in a broadcasting program by using a hi-directional interaction channel. To provide user participation in a program and reflect the user's opinions or responses in real time, the return channel server can be viewed as consisting of four major functional modules: a control module, network interface module, DBMS module, and real-time content authoring module. To construct a return channel server that has a service independent architecture, we designed a return channel server to include the hierarchical structure. The presented return channel server consists of two parts: an RCSAE(return channel server application environment) and RCSA(return channel server application). An RCSA is composed of an execution code and a parameter for executing the execution code. RCSA defines the procedures for providing a specific broadcasting program using the return channel server. On the other hand, an RCSAE provides the environment for the execution of RCSAS. By adopting RCSAE and RCSA, we construct the return channel server that has a service-independent architecture which are shown by the test.

• Journal of the Korea institute for structural maintenance and inspection
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• v.8 no.2
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• pp.169-175
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• 2004

In this paper, the stability of cantilever composite laminated structures with open channel section is studied. This paper deals with the buckling behavior under the variation of the geometrical shape (length ratio, crank angle in the open channel section), the fiber reinforced angle, and so on in order to offer a effective and reliable design data. Also, sensitive analyses are carried out on the stability by the interaction of design factors. Based on this fact, the proper channel section and lamination scheme of composite material cantilever structures are considered in the engineering aspect.

• Proceedings of the Korean Institute of Communication Sciences Conference
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• 2006.07a
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• pp.548-548
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• 2006

• Proceedings of the Korea Institute of Convergence Signal Processing
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• 2003.06a
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• pp.230-233
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• 2003

ATM 트래픽 관리의 목적은 호 설정시 요구하는 QoS를 충족시키는 것과 최소한의 망 자원을 이용하면서 망을 보호하는 것이다. 또한, 서로 다른 채널간 QoS을 공정하게 보장하는 것이 필요하다. 본 논문에서는 채널들간에 공정한 QoS 제공과 링크 이용률을 높이기 위하여 입력버퍼에 문턱값을 기반으로 출력 셀율을 동적으로 조정하는 새로운 TBBM(threshold based buffer management)알고리즘을 제안하였으며 문턱값 변화에 따른 성능을 분석하였다.