Antenna deployment for 5G ultra high-density distributed antenna system at low SHF bands

摘要

In order to tackle rapidly increasing traffic, ultra high-density distributed antenna system (UHD-DAS) has been proposed for the fifth generation (5G) mobile communication systems. Unlike the 4G systems, UHD-DAS dynamically creates user-oriented virtual cells by cooperating lots of UHD distributed antennas, and thus it can drastically improve areal spectral efficiency. However, a design of antenna deployments for 5G higher capacity is important to determine key parameters such as a number of antenna elements per distributed transmission point (TP), proper distance between the transmission points, etc. This paper investigates an optimum design of the antenna deployments for 5G UHD-DAS as the appropriate number of TPs under fixed total transmission power and constant total number of antenna elements. Computer simulations show that UHD-DAS with 16 TPs can achieve higher area spectral efficiency more than 1.3 times in comparison with UHD-DAS with 4 TPs.