Abstract:The MIMO channel is changed into the mixture channel using the eigenvector of the channel matrix. The adaptive modulation together with power allocation is studied in order to maximize the system capacity under the constraint of total transmit power and Quality of Service (QoS). The information needed at the transmitter such as beamforming vector and power allocation vector is conveyed back using limited feedback. The simulation results show that the proposed scheme can improve the capacity greatly at low SNR.
刘毅; 张海林. 基于有限反馈的MIMO系统自适应调制[J]. 电子与信息学报, 2007, 29(11): 2628-2631 .
Liu Yi; Zhang Hai-lin. Adaptive Modulation for MIMO System Based on Limited Feedback. , 2007, 29(11): 2628-2631 .