MIMO, (Multiple-input and Multiple-output), refers to the use of multiple antennas at both the
transmitter and receiver to improve communication performance. It is one of several forms of smart
antenna technology.
MIMO offers significant increases in data throughput and link range without additional bandwidth or
transmit power. This is achieved due to a higher spectral efficiency, (more bits per second per hertz
of bandwidth), and link reliability or diversity (reduced fading).
LTE supports Multi-Mode Adaptive MIMO for Downlink and Uplink, which accommodates both higher
data rate and wider coverage:
Single User MIMO for peak user data rate improvement.
Multi User MIMO for average data rate enhancement.
Collaborative/Network MIMO for cell edge user data rate boost.
