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中文摘要：
在IEEE802．11n簇信道模型下，以均匀线阵、均匀圆阵和星形阵形成的复合天线结构为基础，考虑空分复用和波束形成两种传输机制，设计一种自适应MIMO传输方法．由移动台和基站综合利用瞬时信道信息和空间统计信道信息，共同完成传输方式和天线阵列形式的自适应选择．与完全基于信道统计信息的自适应方法相比，该方法能够获得更高的各态历经容量，逼近最优选择的结果．并且计算复杂度低，只需要很少的反馈开销．
英文摘要：
We propose an adaptive MIMO transmission technique in IEEE 802. lln clustered MIMO channels. In the strategy a compound antenna structure composed of uniform linear array, uniform circular array and star array, and two transmission schemes including spatial multiplexing and beamforming are considered. The mobile station and base station utilize the instantaneous and spatially statistical channel information to cooperatively implement adaptation among different transmission schemes and antenna array types. Compared with the method based on statistical channel information only, the proposed method can achieve better capacity performance approximating the optimal ergodic capacity with the complexity reduced and little feedback cost needed.
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