Performance evaluation of a simple decoding method for millimeter-wave short-range MIMO transmission through a wall

The simple decoding method we have proposed for short-range multiple-input multiple-output (SR-MIMO) transmission is a promising means for reducing power consumption. The method performs MIMO detection with analog devices, thus reducing the number of quantization bits required in the analog-to-digital converter (ADC) of the receiver and the amount of signal processing calculation for MIMO detection. However, when the method is applied to a wall transmissive wireless repeater on a multilayered wall, the transmission performance degrades due to multipath generated by the multilayered structure. In this letter, we evaluate the method's performance using data for a millimeter wave propagation channel that we measured from wall samples and the measured S-parameters of the method's analog circuit. As a result, we quantify the influence of multipath generated by a wall's multilayered structure on transmission performance.