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推导得到了宽带 MIMO-OFDM 信道模型。在空间相关情况下推导了非盲信道估计的 Bayesian CRB及 Bayesian MMSE。利用 Bayesian CRB 准则对发送的训练序列进行了功率分配,而后利用一种线性规划的方法对带有保护带宽 MIMO-OFDM 训练符号进行子载波功率分配,并利用发端酉矩阵进行最优相位设计。
The broadband MIMO-OFDM channel model is deduced. The Bayesian CRB and Bayesian MMSE for non-blind channel estimation are deduced in the space-dependent case. The Bayesian CRB criterion is used to distribute the power of training sequences. Then, a linear programming method is used to distribute the power of subcarriers with MIMO-OFDM training symbols with guard bandwidth, and the optimal phase design is made using the end unitary matrix.