MIMO relies on using multiple antennas to achieve higher bandwidth.

• A. False
• B. True
• C. Not used
• D. Optional

Answer: (B)

A good way to think about MIMO is that it uses multiple antennas to carry more information simultaneously, boosting how much data you can push through the same frequency band. With several transmit and receive antennas, the wireless channel can support multiple independent data streams at once, which increases spectral efficiency (bits per second per Hz). So the system achieves higher throughput within the same bandwidth, thanks to spatial multiplexing and the exploitation of multipath. The gains depend on the environment and antenna spacing—rich scattering and low correlation give the best improvements. In that light, the statement is true: multiple antennas enable higher data throughput in the same bandwidth.