研究了在发送相关信道场景下,综合利用统计信道状态信息和瞬时信道状态信息的多波束选择算法.与传统的基于码本的传输方案不同,基于单信道质量标识反馈的多波束选择算法利用统计信道状态信息决定其最佳的波束矢量,每一时隙只反馈信道质量标识,而且该算法的性能与传统方案基本相近. 为了进一步提高平均和速率,提出了基于双信道质量标识反馈的多波束选择算法,该算法决定 2 个最佳统计特征方向,并且每时隙反馈双信道质量标识. 理论分析和仿真结果表明: 基于双信道质量标识反馈的多波束选择算法可以增加多用户分集和复用增益,具有更高的平均和速率. The multi-beam selection algorithm that uses the statistical channel state information and the instantaneous channel state information in the context of transmitting relevant channels is studied.Compared with the traditional codebook-based transmission schemes, the multi-beam selection algorithm based on single channel quality identification feedback uses the statistics Channel state information determines its best beam vector, and only channel quality indicator is fed back to each time slot, and the performance of this algorithm is basically similar to the traditional scheme.In order to further improve the average and the rate, a multi-beam selection based on dual channel quality identification feedback Algorithm which decides the direction of the two best statistical features and feeds back the dual-channel quality label per slot.The theoretical analysis and simulation results show that the multi-beam diversity selection algorithm based on dual-channel quality label feedback can increase the diversity and reuse gain , With higher average and rate.