Sooman Park

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In this paper, we propose a cell selection scheme and interference management scheme in Heterogeneous Network (HetNet). The cell selection scheme is based on the SINR, and the cell expansion range can vary through the offset value. We can manage the interference between the macrocell and picocell, using ABS in the time domain. Also, a flexible ABS density(More)
The work presents an improved coaxial line fed ring-slot antenna system for microwave coagulation therapy. The performance of a hyperthermia applicator is characterized by both impedance matching and specific absorption rate (SAR) distribution in the tissue of interest. First, we analyze the antenna of a conventional applicator and modify the configuration(More)
In this paper, we have designed RFID application for Transport Information System. This system has two merits for safety driving on vehicle that consist of two parts which identify and monitering from forward and backward direction on vehicle. first, RFID interrogator carry out speedily identified driver behind the wheel. It is possible for an anti-theft(More)
The paper describes a coaxial antenna system for treating cancer with catheter-based tissue heating. The performance of an antenna for hyperthermia is characterized by specific absorption rate (SAR) and temperature rise in the tissue of interest. First, we analyze the antenna of a conventional applicator and modify its configuration to improve the heating(More)
In this paper, the aperture-coupled circular-polarized microstrip antenna for RFID reader system is presented. The feed structure is the slot-coupled configuration using single microstrip line, which can be designed and produced easily. This structure can also reduce a size of the antenna. A kind of pinwheel-slot is proposed as a shape of slot on the ground(More)
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