Japan, March 25 -- NTT Corporation, NTT DOCOMO, INC. and NEC Corporation announced today their successful demonstration of a distributed MIMO technology system that suppresses the degradation of communication quality in the 40 GHz band when a large number of antennas are distributed among multiple locations. The technology selects the most appropriate antennas and beams at high speed and uses frequency- and timing-compensation technology to prevent significant changes in reception frequency and timing on the mobile-terminal side, even if the terminals are moving at high speed or are shielded by other vehicles moving at high speed. The demonstration verified the potential of millimeter-wave distributed MIMO to achieve stable, high-capacity w...