MIMO stands for multiple-input/multiple-output. It has become an essential technology in WLAN, LTE, and 5G wireless communication systems. This technology can increase channel throughput, spectral efficiency, and robustness to fading and interference. Compared with a single transceiver pair (SISO), the use of MIMO can substantially increase the link capacity of WLAN, LTE, and 5G systems. The MIMO technology provides different link performance enhancement schemes, including diversity processing, spatial multiplexing, and antenna beamforming. A MIMO system is made of the following key elements: antenna array, multichannel RF transmitter and receiver, ADC/DAC, and high-speed baseband signal processing blocks.
Communications System Toolbox™, WLAN System Toolbox™, LTE System Toolbox™, RF Toolbox™, Antenna Toolbox™, Phased Array System Toolbox™, and the 5G Library in LTE System Toolbox offer various functionalities for MIMO system design. With these toolboxes, you can build complete end-to-end MIMO communication links for the overall link performance simulation or the study of a specific part of the links. A complete end-to-end MIMO link model may include MIMO antenna array design, RF transceiver design, standard-compliant signal generation, MIMO fading channel models, MIMO channel equalization, space-time block coding (STBC), space-frequency block coding (SFBC), spatial multiplexing, and beamforming. Furthermore, with these MIMO functionalities, you can also investigate the problems associated with the massive MIMO systems for 5G, such as computational complexity, pilot signal interfering effects, mutual coupling effects, channel delay, and array calibration issues.
lteEqualizeMIMO: LTE MIMO Channel Equalization - Function