• Journal of Digital Convergence
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• v.18 no.6
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• pp.255-269
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• 2020

This paper aims to analyze the factors influencing consumer's choice of smartphone purchase channel in multichannel environments. Recently, smartphone purchase channels are becoming more complex and diverse. A smartphone with a short purchase cycle is a product applying advanced technology, the research of this topic would be significant. The major findings of this study are as follows. First, depending on the consumer's shopping orientation, the consumer group was classified into three groups of preference 1. Active shopping, 2. Convenient shopping, and 3. Rational shopping. Second, it was analyzed that the consumer's shopping orientation influenced the decisions of the information search channel and the purchase channel. Third, there was a significant difference between the search and purchase channels in the three groups. Finally, in the channel experience, there was a significant difference in price satisfaction by group. The results of these studies are expected to provide practical implications for establishing a customized multi-channel strategy. This study provides a desirable model for research on smartphone purchase channels.

• The Journal of the Korea Contents Association
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• v.18 no.10
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• pp.53-64
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• 2018

This study analyzed contents of main news of 7 channels for 4 years during the initial period of introduction of the general programming cable channel(GPCC) in order to examine changes in subject composition and diversity of broadcasting news contents due to the introduction of GPCC. As a result of the analysis, terrestrial broadcasters treated a wide range of topics, while the GPCC's news focused on political news and differentiated from the terrestrial in the composition of the topic. In the composition of the news topic headline news, GPCC showed distinctive structure using political news and North Korea news, while terrestrial news was treated as major news for economic and daily information news. As a result of analyzing the diversity of broadcast news in the first four years of opening GPCC, it has changed into a strategy of selecting and concentrating in order to compete with the terrestrial broadcasters. In the initial broadcasting news market, the terrestrial broadcastings were used to maintain diversity strategies while the GPCCs were using concentrated strategies.

• The Research Journal of the Costume Culture
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• v.27 no.2
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• pp.98-108
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• 2019

With the expansion of various distribution channels in online and offline stores, TV, and mobile, consumers now have more information search and retail selection channels to choose from than ever before. Major retailers now use multi- and omni-channel strategies. This study focused on cross-channel consumption, which involves the use of different information search and purchase channels. Using cross-channel consumption, consumers can search for information online and then make purchases offline and vice versa. The purpose of this study was to examine the relationship between channel strategies and other consumer variables, and the study also assessed the effect of product type. To conduct this empirical study, the researchers developed a consumer questionnaire concerning three consumer channel strategies-on-on, cross, and off-off-and four product categories-clothing, cosmetics, books, and electronics. The results indicated that gender and marital status did not influence consumer channel strategies, but that age did have a significant influence. The analysis showed that consumers in their 40s preferred the cross channel strategy, perceiving it to be effective, satisfactory, and rewarding. Compared to other products, clothing products showed higher levels of cross channel strategies. Consumers indicated that they prefer searching for information online and then purchasing clothing offline. Overall, clothing products generated higher levels of channel satisfaction and channel switch intentions. Cross-channel clothing shoppers reported effective information retrieval times but longer delivery times.

• Journal of the Institute of Electronics Engineers of Korea TC
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• v.44 no.1
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• pp.106-112
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• 2007

A new space-time cooperative communication relaying strategy with assistant or management terminals is proposed in multi-hop wireless communication systems. More than one relaying terminals are included in one cooperative group to share the state information such as frame error rate and channel information. Among the cooperative group, the best ones are selected to send bit information using space-time codes. An implementation for the proposed scheme is also presented using a TDMA cooperative protocol. Receive signal to transmit signal ratio($E_r/E_s$) and computer simulation show the strategy outperform the conventional cooperative system.

• The Journal of Korean Institute of Communications and Information Sciences
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• v.32 no.1A
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• pp.109-114
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• 2007

A new space-time cooperative communication relaying strategy with assistant or management terminals is proposed in multi-hop wireless communication systems. More than one relaying terminals are included in one cooperative group to share the state information such as frame error rate and channel information. Among the cooperative group, the best ones are selected to send bit information using space-time codes. An implementation for the proposed scheme is also presented using a TDMA cooperative protocol. Receive signal to transmit signal ratio($E_r/E_s$) and computer simulation show the strategy outperform the conventional cooperative system.

• Proceedings of the Korea Database Society Conference
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• 2000.11a
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• pp.63-66
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• 2000

컴퓨터를 이용한 인터넷의 발전으로 웹 코스웨어의 교육에 응용하려는 많은 사람들이 지속적으로 증가되어가고 있다. 이는 인터넷 이용자들이 쉰 상에서의 원격교육에 관한 필요성이 커지고 있으며, 이를 실세계에 다양한 방법 이용하여 보다 효율적인 교육을 위해 다양한 교육 툴들이 연구되어지고 있다 인터넷을 이용한 웹 코스웨어의 교육은 시공간을 초월하여 여러 곳에 떨어져 있는 학습자들의 자기 주도적인 학습목표를 달성시키기 위한 목적으로 개발 및 구현되었다. 그러나 이를 사용하기 위해서는 사용자의 시스템이 정보를 제공하는 서버와의 정보 교환을 위해 통신이 항상 서로 교류하고 있는 상태를 유지해야하고, 사용자가 새로이 갱신된 학습정보를 접속하기 위해서는 서버에 항상 찾아가 정보를 찾아 접속해야만 갱신된 정보를 확인할 수가 있었다. 본 연구는 이를 반영하여 XML(extensible Markup Language)을 기반으로 한 웹 캐스팅기법으로 웹 코스웨어를 구연하였으며, 이를 적용하기 위해 CDF(Channel Definition Format)형식을 사용하였다. 채널을 사용하여 학습자의 자율적으로 채널을 선택하면 새로이 갱신된 정보가 자동적으로 학습자의 시스템에 저장되도록 구현하였다.

• Korean journal of communication and information
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• v.49
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• pp.39-56
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• 2010

This study on the exposed the viewers diversity as a basic cable television service. Diversity is the most basic goal of broadcasting policy has important implications. But still, such as cable and pay-media research on the viewing diversity has made a limited basis. SO much to offer for the cable offers viewers receive the number of channels available to compare the diversity of the field was verified. Price rises of analysis for the cable the more the number of channels offered to supply the channel has increased the diversity of the field. SO granted in accordance with the results of a market strategy, but for a variety of channels to be provided by a policy perspective, the price depending on the choice of a variety of audiences can be quite limited means. That is a wide range of viewers watching the channel had a right to be limited. These phenomena to improve the pay television service and the need to manage the Product channel diversity index was raised.

• Information Systems Review
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• v.20 no.4
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• pp.59-78
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• 2018

With the advent of the various device types and marketing communication, customer's search and purchase behavior have become more complex and segmented. However, extant research on multichannel marketing effects of the purchase funnel has not reflected the specific features of device User Interface (UI) and User Experience (UX). In this study, we analyzed the marketing channel effects of multi-device shoppers using a unique click stream dataset from global online retailers. We examined device types that activate online shopping and compared the differences between marketing channels that promote visits. In addition, we estimated the direct and indirect effects on visits and purchase revenue through customer's accumulated experience and channel conversions. The findings indicate that the same customer selects a different marketing channel according to the device selection. These results can help retailers gain a better understanding of customers' decision-making process in multi-marketing channel environment and devise the optimal strategy taking into account various device types. Our empirical analyses yield business implications based on the significant results from global big data analytics and contribute academically meaningful theoretical framework using an economic model. We also provide strategic insights attributed to the practical value of an online marketing manager.

• The Journal of the Korea Contents Association
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• v.9 no.4
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• pp.65-71
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• 2009

In this paper a new space-time diversity relaying strategy using cooperative communication technique is proposed. More than one relaying terminals are included in one cooperative group to share their state information, such as frame error rate and channel state information. The best terminals are selected to send bit information using space-time diversity relay system. An implementation for the proposed scheme is also presented using the TDMA cooperative protocol. The resulting receive signal to transmit signal ratio and computer simulation demonstrate that the proposed strategy outperforms the conventional cooperative system.

• The Journal of Information Technology
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• v.6 no.4
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• pp.1-9
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• 2003

This paper is about power line communication(PLC) over the low power voltage grid. The main advantage with power line communication is the use of an existing infrastructure. The PLC channel can be modeled as having multi-path propagation with frequency-selective fading, typical power lines exhibit signal attenuation increasing with length and frequency. OFDM(Orthogonal Frequency Division Multiplexing) is a modulation technique where multiple low data rate carriers are combined by a transmitter to form a composite high data rate transmission. The performance in consideration of the multi-path(echoes) powerline scheme is analyzed and verified by computer simulation.