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中文摘要：
针对MIMO多用户下行传输系统中，发端仅有不完全的信道状态信息（CSI）的场景，提出了一种鲁棒性的连续最小均方误差（MMSE）预编码方案．与传统的鲁棒性MMSE预编码方案相比较，可以支持接收端配置多根天线，从而接收端可以对接收到的信号进行联合处理．仿真结果表明，与没有考虑信道估计误差影响的方案相比，该方案可以有效地提高系统性能，甚至于消除误码平层．
英文摘要：
A robust successive MMSE （SMMSE） precoding scheme is proposed in the context of the multiple user multiple input multiple output （MU-MIMO） downlink （DL） transmission system under the condition of imperfect channel state information （CSI） at the transmitter side. The proposed algorithm enables us to use multiple antennas at the receiving terminal so that it is possible to jointly process the received signal at the receiving terminial, with the eigen-beamforming technique belonging to the joint processing method. Simulation results show that the robust SMMSE algorithm aided eigen-beamforing technique can effectively improve the system performance compared to the one without considering the impact of the channel estimation error, and even completely remove the error floor.
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