Sung Kyung Kim

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In broadband wireless OFDMA systems where a set of subcarriers is shared among multiple users, the overall system throughput can be improved by a band AMC mode that selects subbands preferential to individual users. As long as channel qualities for the subbands of all users are known a priori, multi-user and frequency diversity gains can be simultaneously(More)
BACKGROUND The role of positron emission tomography-computed tomography (PET-CT) for the staging of non-small cell lung cancer (NSCLC) has been well documented, whereas its role for postoperative surveillance after the curative resection of this cancer has not. We prospectively implemented PET-CT in our surveillance protocol for recurrence of NSCLC and(More)
—A prevalent underlying theme is the techniques used to control the handover of users as they move between cells, at greater speeds, and with stricter requirements on both the QoS delivered to the user and operational costs associated with a connection. The decision to initiate a handover depends on a number of control variables. Simple estimation of(More)
Erdheim-Chester disease (ECD) is a rare proliferative non-Langerhans cell histiocytosis of multiple organs with unknown etiology. Around 20% of ECD cases are reported to be associated with lung involvement and there are very few cases manifested solely by nonspecific respiratory symptoms. A 50-year-old woman presented with dry cough and dyspnea for 2 weeks.(More)
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