Eunjun Rhee

Cross-Conforming Approaches of ICT Functionality Design for Smart City

This paper deals with the design approaches of ICT functionality for smart city in an attempt to identify cross-conforming aspects between extreme approaches (IIFA, CSFA). Based upon a general modelling of city spaces and infrastructures, properties of those two approaches are compared to identify the chance to compensate the weak points and to combine the preferable features of those models each other. The result gives us a direction to combine those approaches for the design of ICT structure for smart city, that is synergistic enough for the planning of a smart city not only at a manageable level of fast installation but also for accommodating heterogeneity in city subsystems.

Implementation of the cloud gaming platform with adaptive bitrate streaming

There are still many technical challenges to provide a better users experience in the field of cloud-based gaming service. We focus on an adaptive streaming technology in this paper. We describe the implementation of platform for cloud-based gaming service, delivering virtualized gaming contents adaptively according to variations of available network bandwidth. And we show the measured latency according to changes of the bandwidth at users access network.

Cloud-based 3D gaming system for smart TV

Cloud gaming service has recently received a lot of attention. However, there are still many technical challenges to be solved in order to provide the cloud-based commercial services for high-quality games. Latency is one of the most important issues to provide a good user experience. In this paper, we describe the implementation of cloud-based gaming service system for smart TV. And we show the latency comparison on game agents.

A comparison study on characteristics of IPTV and digital CATV subscribers

The object of study is to compare the characteristics of IPTV (Internet protocol television) subscribers and digital CATV (Community antenna television) subscribers. We used the adjusted residuals. We did gang survey for 100 subscribers in Seoul, Kyeonggi or Incheon regions. Compared to digital CATV, IPTV seems to have appropriate contents for interactive services and high satisfaction level for cost, but high dissatisfaction level for channels. Digital CATV subscribers would know and subscribe passively, compared to IPTV subscribers. IPTV subscribers are more satisfied than digital CATV subscribers even though IPTV is higher cost. Main content of digital CATV is sports, which is not interactive contents. People think IPTV is an innovative service which let subscribers see wanted contents always, but digital CATV is an extension of CATV. So digital CATV cannot use advantages of interactive services. Even though two services are almost same, they are very different in recognition.