研究了 Massive MIMO 中的预编码算法，对 ZF、MMSE 和 SVD 3种线性预编码算法进行了公式推导和仿真对比，并对 5G 中的上下行参考信号及其功能进行了简要介绍。随后对 5G 中的波束赋形方案进行了研究，包括 5G 下行参考信号工作原理及流程，并对单流、双流和多流 3 ...

Multiple-input multiple-output (MIMO) radar systems have emerged as a pivotal technology in modern sensing, leveraging arrays of transmit and receive antennas to enhance spatial resolution and target ...

Multiple input, multiple output (MIMO) refers to systems using multiple antennas (and correspondingly multiple channels) to transmit and receive information. MIMO is a form of spatial diversity, which ...

The world has gone wireless. From mobile phones to the latest tablet computers, mobility is a key feature, and there are many different ways to provide wireless data. The demand for higher data rates ...

All 5G systems networks are going to use MIMO (massive input, massive output) antenna arrays and beamforming. Many 5G systems will operate in millimeter wave (mmWave) spectrum. Designing MIMO arrays ...