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This paper utilizes an adaptive modulation and coding (AMC) scheme and compares the performance of adaptation between single-user multiple input multiple output (SU-MIMO) and multi-user (MU) MIMO with that of SU-MIMO. In long term evolution (LTE), every UE only needs to feed back SU-MIMO rank 1 channel quality indicator (CQI) which could get feedback overhead and computational complexity reduction...
Reckon for the considerable beamforming gain, eigen-based beamforming (EBB) has been proved to be a promising case to ensure cell edge link robustness. For simplicity, both spatial multiplexing gain and beamforming gain can be obtained with conventional rank adaptive EBB scheme, however, former researches suggest that it doesn't work well at cell edge region. A novel ACK/NAK aided rank adaptive algorithm...
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