Jeongchan Kim

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One of major issues in the efficient use of radio resource for multiuser multiple-input/multiple-output (MU-MIMO) systems is the selection of users to achieve the maximum system throughput. The optimal user selection algorithm, which requires exhaustive search, is prohibitive due to its high computational complexity where Block diagonalization (BD) method(More)
In Mobile WiMAX based on the IEEE 802. 16e wireless MAN technologies using an OFDMA, the system throughput is improved by subchannelization schemes such as Diversity and AMC in multipath fading channel environment. Especially, in high mobility environment, Mobile WiMAX systems uses FUSC which is one of the Diversity subchannelization schemes, and get(More)
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