ABSTRACT
In [4], the authors demonstrate that only when the inter-spacing of array elements reaches 2λ, the desired capacity of MIMO system can be obtained. Furthermore, the spacing is required to be lλ when there is only LOS path in the communication environment to achieve the ideal space multiplexing capability, where l where represents the distance between transmitter and receiver. How to configure 60 GHz linear antenna arrays to obtain better spatial characteristics, and how to
1 INTRODUCTION
Multiplexing is an important way to increase channel capacity and enhance system performance for wireless communication systems. The directional signal propagation enables 60 GHz wireless communication additional multiplexing potentials. Therefore, the study of 60 GHz spatial characteristics can help to improve the data rate, system performance, and ability of multi-user access. However, the millimeter-wave propagation characteristics of 60 GHz are very different to that of the lower-frequency wireless communication systems, especially the reduction of multipath effect leads to greater correlation between adjacent channels, which will damage the multiplexing gain. Therefore, the 60 GHz MIMO channel characteristics need to be further studied, and more reasonable space division multiplexing methods need to be proposed.
