Hyochan Bang

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Recently, as the serious damage caused by DDoS attacks increases, the rapid detection and the proper response mechanisms are urgent. However, existing security mechanisms do not provide effective defense against these attacks, or the defense capability of some mechanisms is only limited to specific DDoS attacks. It is necessary to analyze the fundamental(More)
In the network system attack like Denial of service (DoS) is forthcoming damaging attack. The performance of online servers degrades within seconds. Intensive computation on the target server is imposed due to this attack. Target Server gets flooded with large useless packets. The fatality server can be forced out of service From a few minutes to even(More)
Luncheon Keynote: The Technology and the Application: The challenges of targeted development. The tremendous success of the Samsung galaxy family of portable devices has sustained the emergency of the OLED displays. The OLED technology allows the arrival of the next generation of displays who become flexible and in a next step should be expected similar to(More)
A new cooperative guidance law is proposed for target estimation of multiple unmamed aerial vehicles (UAVs) without involving numerical computational work. The guidance law derivation is based upon the Fisher Information Matrix (FIM) to quantify the amount of target information. For two UAVs, an analytical one-step determinant of FIM is introduced, which(More)
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