In a multi-input multi-output (MIMO) setup, where one side of the link comprises a linear antenna array, data can be transmitted over the direction of incident rays. Channel capacity for this setup is studied in this paper. We define two different setups; one when the energy is constant and equal over all rays, and one when available energy is evenly distributed over rays. For the latter, we show that there is an upper bound for channel capacity, regardless of the number of rays and antennas. Also, we have compared this setup with the legacy single-input single-output (SISO) AWGN channel.

翻译：在多投入多输出装置(MIMO)中,链接的一方包括直线天线阵列,数据可以传送到事件射线的方向上。本文研究了这一装置的频道能力。我们定义了两种不同的装置:一种是所有射线的能量均匀,一种是所有射线的能量均匀分布;另一种是射线的能量均匀分布。对于后者,我们表明,无论射线和天线的数量如何,都有一个连接频道能力的上限。此外,我们还将这一装置与遗留的单投入单输出单输出通道进行了比较。