Outdoor Capacity Study Utilizing Multiple Element Antennas at the Millimeter Wave Band

This paper studies the capacity of an outdoor wireless system operating at the millimeter wave band using a physical channel model that incorporates antennas with multiple elements at both terminals. In our study we have utilized uniform linear arrays (ULAs) and uniform rectangular arrays (URAs) for comparison reasons. It was observed that in order to realize a major improvement in the data rates, an outdoor MIMO system, in an urban environment at 60 GHz, should operate at a distance up to 50-60 m with the view of maintaining low signal to noise ratios. It is found that in the 90% of the cases the average capacity remains above 2.1 b/s/Hz utilizing ULA antennas, and above 4.6 b/s/Hz in case of URA antenna configurations.