What does MIMO stand for?

What does MIMO stand for?

• A. Multiple Input Multiple Output
• B. MIMO
• C. Mobile Input Multiple Output
• D. Multi-Input Modem Output

Answer: (A)

Multiple Input Multiple Output is the phrase that names the wireless technique of using more than one antenna at both the transmitting and receiving ends to increase capacity and reliability. The best answer is the expansion that matches the letters of MIMO exactly: Multiple Input Multiple Output. This approach lets signals travel over several spatial paths, enabling parallel data streams and better performance in environments with interference or fading. That’s why MIMO is a foundational concept in modern Wi‑Fi standards (like 802.11n and newer) and cellular technologies (such as LTE and 5G). The other options don’t fit because they either repeat the acronym without expanding it or change the words in the expansion in ways that aren’t part of the term (for example, using Mobile instead of Multiple or introducing Modem in place of Output).

Multiple Input Multiple Output is the phrase that names the wireless technique of using more than one antenna at both the transmitting and receiving ends to increase capacity and reliability. The best answer is the expansion that matches the letters of MIMO exactly: Multiple Input Multiple Output. This approach lets signals travel over several spatial paths, enabling parallel data streams and better performance in environments with interference or fading. That’s why MIMO is a foundational concept in modern Wi‑Fi standards (like 802.11n and newer) and cellular technologies (such as LTE and 5G).

The other options don’t fit because they either repeat the acronym without expanding it or change the words in the expansion in ways that aren’t part of the term (for example, using Mobile instead of Multiple or introducing Modem in place of Output).