在接收端利用每个用户在各个波束方向上的比例公平性参数来得到容量门限。
At receiver, the capacity threshold is obtained by using proportional fair parameter in each sub-channel on each user.
在该方案中，接收端进行波束成形，发送端通过TH预编码进行用户间干扰抑制，同时采用层间轮换的用户调度机制。
In this scheme, the receivers perform beam-forming, while the transmitter suppresses the inter-user interference using the THP scheme.
提出在短波通信中利用发射端窄波束，在空间上将能量集中于主路径且抑制其他路径来改善多径信道环境；
The authors propose a method of using transmit narrow-beam to spatially concentrate the radiation energy on dominant path and suppress undesired paths in the shortwave communication.
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