MIMO: Multiple Input Multiple Output

[himanshusingh1996]

What is MIMO?

MIMO or Multiple Input Multiple Output is a wireless technology that involves wireless communication through different antennas. It boosts the performance in terms of data transmission and signal. There are multiplexing techniques used in this technique for making the wireless bandwidth & its range better.

This technology has gained lots of attention due to its uses in the wireless local area networks, digital television, mobile communications, and metropolitan area networks. It is one of the many forms available in the smart antenna technology along with Single Input Multiple Output and Multiple Input Single Output. It enables the separate paths all the antennas for enabling the multiple signals paths to get utilized.

How MIMO work?

There are three categories in which the MIMO is divided. We have stated about each of them in detail below:

• Precoding- All the available signal phases are adjusted in this category so that solid signal strength can be gained at the receiver.
• Spatial multiplexing- There is a requirement of greatly complex signal receivers in this category. It includes either Orthogonal Frequency Division Multiple Access or Orthogonal Frequency Division Multiplexing modulation.
• Diversity Coding- This type of MIMO utilized where the signal can’t be determined across the air. There is space-time coding used by a single data stream for boosting the reliability of transmitted signal because of the data redundancy at the end of the receiver.

What are the benefits of MIMO?

MIMO is full of advantages about which we have stated in detail below:

• The multiple antennas can help in achieving the higher data rate through spatial multiplexing technique. It assists in getting the better uplink and downlink rate.
• The MIMO technology result in reducing the Bit Error Rate because of the advanced signal processing algorithm.
• The fading effects minimized by the MIMO based system because of the detailed signal travels to receiver’s end.
• The higher Quality of Service provided by the systems based on the MIMO offers an increased level of spectral efficiency.
• There is a better coverage supported by this technology that directly assists in supporting a great number of subscribers in a cell.
• The MIMO technology gets adopted in a great variety of wireless standards like WLAN, LTE, WiMax, and LTE-Advanced.

What are drawbacks associated with the MIMO?

Have a look at some drawbacks that come with the MIMO technology mentioned below:

• When compared with a single antenna based system, the MIMO demand pretty much complex hardware. There are individual RF units demanded by each antenna.
• The power requirements increased by the hardware resources in this technology. It results in draining the battery at a faster rate because of the increasing complexity and signal processing algorithms.
• The cost of systems having MIMO is pretty higher when compared to the individual antenna system.

Conclusion

The MIMO technology has shown a great hope to increase the data speed and reliability of wireless networks. We believe that this trend will continue in the future, especially in public safety.

[Harsh0611]

Thanks For Explaining This Tech😍😍

[himanshusingh1996]

most welcome