Multiple antenna design method for mobile platform diversity systems

Antenna diversity is one of the most popular and simple methods for mitigating shadowing and fading associated with rich multipath radio environments. It can also be applied to Multiple-Input Multiple-Output (MIMO) systems to improve spectral efficiency. Although it is straightforward to design a multiple antenna diversity system for a fixed environment, the implementation on a mobile environment is not as easy. There are two issues when we design an antenna diversity system for mobile platform: First, it poses a large computational problem when considering mobile platform, antennas, and surrounding environments together. Second, it requires a complex process to find the optimum diversity configuration (using minimum number of antennas) and achieving maximum performance.