• Journal of Korea Multimedia Society
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• v.19 no.5
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• pp.932-938
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• 2016

Recently, interactive media which maximizes audience engagement by making the audience appeal on a stage in digital media environment has been distributed more widely. In fact, there has been active movement to develop and promote a new participatory media genre with higher immersion by applying this kind of interactive media concept to advertisement, film, game and e-learning. In the conventional interactive media, digital media had to be enjoyed in particular environment where diverse sensors were installed or through a certain device to recognize a user's motion and voice. This study attempted to design and implement an image creation system which ensures interactions between a user and media in popular distribution-enabled web environment and through PC and smart devices to minimize the image producer-user constraints.

• Journal of Information Technology Services
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• v.12 no.3
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• pp.127-149
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• 2013

Is the social web environment in which production, distribution and consumption of information occurs from users an environment where manifestation of collective intelligence is easily made? Or is the social web environment a condition that incites people to depend on the groupthink due to biased information? It is important to conduct empirical studies on the possibility of social media as a tool of collective intelligence under the situation where conflicting opinions prevail. However, most of the existing studies related to this were limited to an exploratory research rather than an empirical research. In this regard, this study attempted to examine if the social media can perform a part as a platform of the collective intelligence empirically. Based on the experimental results, it can be safely said that the communication methods of social media showed its usefulness in both 'intellectual capacity of the group' and 'problem-solving skill of the group.'

• Proceedings of the KIEE Conference
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• 2000.11a
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• pp.193-195
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• 2000

Power Line Communication(PLC) is the old technique. But it's worked in a very low spees. Developing of wireless communication technique, PLC is adopted these tech, for high speed communication. However, Power line environment differ from wireless environment. This paper survey modulation techniques and find the best modulation technique which is appropriate for power line environment.

• International Journal of Internet, Broadcasting and Communication
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• v.8 no.3
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• pp.78-91
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• 2016

Various studies have proven that human is the biggest challenge in the process of transitioning to agile. Culture and mindset are two critical elements of human factors causing issues in agile environment. This study involved thirty-two (32) agile practitioners from nineteen (19) country to validate the issues from human factors. The purpose of the study is to discover human factors that required more attention and factors that give a low impact on the agile environment. Furthermore, this paper presents research analysis on some of popular human factors such as collaboration, hierarchy, communication and other critical factors which company may face. The results of this analysis can be used as a guide for IT organization to consider the critical challenges they may encounter.

• International Journal of Contents
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• v.2 no.1
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• pp.9-16
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• 2006

Recently many researches are investigating for ubiquitous computing and network. In the real world many sensor devices must be equipped to provide many services for users. To make computing environment easy and more user friendly, middleware system not only hides all complexities (network, system, services, etc), but also needs to have efficient context inference scheme and system reconfiguration capability. In this paper we suggest context-aware middleware design for sensor network which provides efficient computing environment for end-users. We also present XML based implementation of our system.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.8 no.1
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• pp.41-48
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• 2004

In this paper, we analyzed channel performance of PPM modulated UWB communication system in indoor radio fading environment that consider amplitude characteristic of channel. Fading channel considered various channel environments by fading index m utilizing Nakagami-m distribution model with data through an UBW radio signal experiment that announced in existing. Also, we improved performance of system that it is decreased in fading environment employing convolution encoding techniques.

• Journal of electromagnetic engineering and science
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• v.6 no.3
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• pp.176-181
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• 2006

Signal distortion due to the path loss, shadow, and multi-path fading is very serious in radio channel. In this paper, we propose CDMA-OFDM cooperative communication system based on DFP(Decode and Forward Protocol) to overcome these phenomena using spread spectrum technique, orthogonal sub-carrier, and the space diversity. We simulated proposed system under Rayleigh flat fading channel environment. A variety of simulation results reveal the cooperation can provide performance gain of up to 12 dB over direct communications in ideal inter-user case at BER of $10^{-3}$. And we can also confirm variation of diversity effect as channel environment changes.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2001.10a
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• pp.101-104
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• 2001

Many applications are developed on variety type of mobile terminal with mobile tole-communication improvement. We suggest that we offer more improve multimedia environment on that development. So we design SWF player which supports Macromedia SWF file format. It is application that animation and graphic module are independent of system. In addition to, we implement SWF player on mobile communication environment. for the purpose of it, we adapt AKL concept, which is designed for the consistent interface on heterogeneous operating system environment.

• Journal of the Korea Institute of Military Science and Technology
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• v.6 no.1
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• pp.81-90
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• 2003

In the military communication environment, it is very difficult to obtain clear voice signal due to the high level noise. The purpose of this study is to find out the best body spot to get the vocal chords signal by measuring the skin or the bone conducting vibrations of different body positions within the noise environment. Based on the experimental study, it was found out that the measurement of sound signal within the ear is the best way to get the voice which comes from the vocal chords and this method can prevent the interruption of noise. This study will give the effective voice communication method in the high noise environment and be applicable to military purpose.

• The Journal of the Korea institute of electronic communication sciences
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• v.4 no.3
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• pp.176-182
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• 2009

The dissertation on today information communication technique development consist according to new broadcasting and communication appearanced fusion-service in earnest legislation's change about broadcasting and communication regulate the while separation On that score, radio wave law's change on environment change has been lively producing.