This research has analysed both reciprocity and feedback mechanisms in multi-antenna wireless systems. It has presented the basis of an effective CSI feedback mechanism that efficiently provides the transmitter with the minimum information to allow the accurate knowledge of a rapidly changing channel. The simulations have been conducted using MATLAB to measure the improvement when the channel is estimated at the receiver in a 2 X 2 multi-antenna system and compared to the case of perfect channel knowledge at the receiver.
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机译:这项研究分析了多天线无线系统中的互惠性和反馈机制。它提出了有效的CSI反馈机制的基础,该机制有效地为发射机提供了最少的信息,从而可以准确了解快速变化的信道。当使用2 X 2多天线系统在接收器处估计信道并将其与接收器上具有完善信道知识的情况进行比较时,已使用MATLAB进行了仿真,以测量改进。
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