Channel Capacity of TDD-OFDM-MIMO for Multiple Access Points in a Wireless Single-Frequency-Network
Wireless Personal Communications: An International Journal
Multiuser MIMO OFDM Based TDD/TDMA for Next Generation Wireless Communication Systems
Wireless Personal Communications: An International Journal
Performance of vector perturbation multiuser MIMO systems with limited feedback
IEEE Transactions on Communications
Multiuser MIMO achievable rates with downlink training and channel state
IEEE Transactions on Information Theory
On the Performance of the MIMO Zero-Forcing Receiver in the Presence of Channel Estimation Error
IEEE Transactions on Wireless Communications
Opportunistic beamforming using dumb antennas
IEEE Transactions on Information Theory
On the distribution of SINR for the MMSE MIMO receiver and performance analysis
IEEE Transactions on Information Theory
Transmission Scheme for 2D Antenna Array MIMO Systems with Limited Feedback
Wireless Personal Communications: An International Journal
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Channel state information (CSI) reporting at one mobile station (MS) often targets maximizing the throughput of one single link, hence is optimized for single-user multi-input multi-output (SU-MIMO) transmission at base station (BS). However, the system wide throughput may not be maximized when BS is performing multi-user multi-input multi-output (MU-MIMO) transmission utilizing the SU-MIMO optimized CSI reports, and vice versa. This CSI mismatch can cause system throughput degradation. In this paper, a novel CSI feedback method is proposed which can switch between SU-MIMO optimized CSI reporting mode and MU-MIMO optimized CSI reporting mode when instructed by BS's signaling. System level simulation results show when BS is performing MU-MIMO transmission, significant throughput gain can be obtained if MS feeds back MU-MIMO optimized CSI reports instead of SU-MIMO optimized CSI reports. With the instruction of the BS signaling to dynamic indicate MS to switch between SU-MIMO and MU-MIMO optimized CSI reporting modes, the SU-MIMO performance is not compromised either.