MIMO OFDM radios use lower frequencies in the 2-6GHz bands to provide Point to Point as well as Point to Multipoint connectivity. Modern technology offers high performance, carrier-class broadband radio equipment with throughput up to 867Mbps in licensed or unlicensed bands. MIMO OFDM radios has are widely used in Enterprise, Wireless ISP, Government, CCTV security applications worldwide.
MIMO OFDM radios can be deployed in Point to Point (P2P) as well as Point to Multipoint (P2MP), Mesh, Star, Ring and other architectures.
OFDM (Orthogonal Frequency Division Multiplexing) is a technology which solves “multipath” signal reflection issues and enables Near-Line-of-Sight and Non-Line-of-Sight (NLOS) transmission through trees, vehicles buildings and other structures
MIMO technology uses multiple spatial “streams” on the same frequency to increase data rates by 2x, 3x or 4x the capacity of a non-MIMO device.
Examples of commercial MIMO OFDM Broadband Radios can be found here