What is spatial multiplexing in mimo

Spatial multiplexing or space-division multiplexing (often abbreviated SM, SDM or SMX) is a multiplexing technique in MIMO wireless communication, fibre-optic communication and other communications technologies used to transmit independent channels separated in space.

1. What is spatial multiplexing technique?
2. What is spatial multiplexing gain MIMO?
3. What is the difference between MIMO transmit diversity and MIMO spatial multiplexing?
4. What is a spatial stream in MIMO?

What is spatial multiplexing technique?

Spatial multiplexing in wireless communications is based on multi-input and multiple-output (MIMO) technology where multiple antennas at both the transmitter and receiver are used to carry multiple data streams simultaneously within the same frequency band.

What is spatial multiplexing gain MIMO?

Spatial multiplexing gain. MIMO channels offer a linear increase in capacity without additional power or bandwidth. This gain is referred as spatial multiplexing gain. The spatial multiplexing gain is realized by transmitting independent data signals from individual antennas.

What is the difference between MIMO transmit diversity and MIMO spatial multiplexing?

What is different between Spatial Multiplexing and Transmit Diversity in MIMO system? In short: Spatial: send different data from multiple antennas, so increase your throughput. Diversity: send same data from multiple antennas, increase data correction rate.

What is a spatial stream in MIMO?

When wireless signals are being transmitted or received simultaneously in a MIMO environment, the signals being transmitted by the various antennae are multiplexed by using different spaces within the same spectral channel. These spaces are known as spatial streams.