Jaecheol Kim

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This paper presents traffic measurement of a Massively Multiplayer On-line Role Playing Game (MMORPG). This analysis characterizes the MMORPG traffic and shows its implications for future research issues. The target game is 'Lineage II' developed by NCsoft, which is one of the world's largest MMORPGs in terms of the number of concurrent users. We collected(More)
This paper describes the measurement and analysis of a Massively Multiplayer On-line Role Playing Game(MMORPG). About 3 billion packets were traced for around 8 days. The results showed that MMORPG traffic has very small packet size and bursty interarrival time. By the analysis of per-flow inter-arrival time and average connection time per flow, we showed(More)
In wireless network convergence, eachmobile host is expected to havemultiple kinds of wireless interfaces.Multicast-based applications are expected to be widely deployed. In this paper, a new network selection scheme is proposed for a mobile host to select the most appropriate wireless access network to maximize user satisfaction and ISP’s profit,(More)
This paper proposes a strategy for checking timing constraint violation in wireless sensor networks. We present the process for checking timing constraint violation and the techniques for calculation of clock drift, collection of sending and receiving time, and calculation of data transfer time. Through the techniques of this paper, the user can know about(More)
This study examines the dominance of the D/H ratio as a design element for an enclosed urban square, long claimed by numerous urban designers. It claims that like the D/H ratio, other design elements significantly affect the perceptual quality of an enclosed square, but their impacts differ according to the context in which they are applied. The study(More)
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