MIMO technology is an important concept in wireless communication technology. It can significantly improve the capacity and reliability of wireless channels and improve the quality of wireless communication. MIMO technology has been widely used in various wireless communication systems and has become an important part of modern wireless communication technology.
●How does MIMO technology work?
MIMO technology uses multiple transmitting and receiving antennas to send and receive data. The transmitted data will be divided into multiple sub-signals and sent through multiple transmit antennas respectively. Multiple receiving antennas pick up these sub-signals and recombine them into the original data. This technology allows multiple data streams to be transmitted on the same frequency band, thereby increasing spectral efficiency and system capacity.
●Advantages of MIMO technology
When a radio signal is reflected, multiple copies of the signal are produced, each of which is a spatial stream. MIMO technology allows multiple antennas to transmit and receive multiple spatial streams at the same time, and can distinguish signals sent to or from different spatial directions. The application of MIMO technology makes space a resource that can be used to improve performance and increase the coverage of wireless systems.
1.Increase channel capacity
Using MIMO systems is an effective way to improve spectral efficiency. Multiple spatial streams can be sent and received simultaneously between the MIMO access point and the MIMO client. The channel capacity can increase linearly as the number of antennas increases. Therefore, the MIMO channel can be used to exponentially increase the wireless channel capacity. Without increasing bandwidth and antenna transmission power, spectrum utilization can be increased exponentially.
2.Improve channel reliability
Using the spatial multiplexing gain and spatial diversity gain provided by the MIMO channel, multiple antennas can be used to suppress channel fading. The application of multi-antenna systems allows parallel data streams to be transmitted simultaneously, which can significantly overcome channel fading and reduce the bit error rate.
3.Improve Anti-interference Performance
MIMO technology can reduce interference between users and improve the anti-interference performance of the network through multiple antennas and spatial separation technology.
4.Improve Coverage
MIMO technology can improve the coverage of the system because MIMO technology can utilize multiple antennas for data transmission, thus improving the signal transmission distance and penetration capability. During transmission, if some antennas are affected by blocking or attenuation, other antennas can still continue to transmit data, thus improving signal coverage.
5.Adapt to Various Channel Environments
MIMO technology can adapt to a variety of channel environments. This is because MIMO technology can use multiple antennas for data transmission, thus adapting to changes in a variety of channel environments. During the transmission process, different channel environments may have different impacts on signal transmission, such as multipath effect, Doppler effect, etc. MIMO technology can adapt to changes in various channel environments by using multiple antennas.
Conclusion
MIMO technology has been widely used in various wireless communication systems, including WLAN, LTE, 5G, etc. As a professional communication product developer and manufacture, IWAVE R&D team focus developing mini secure wireless data link for light, small and micro air unmanned platforms and ground unmanned platforms.
IWAVE's self-developed MESH wireless network products adopt MIMO technology have the advantages of long transmission distance, low latency, stable transmission and support for complex environments. It is widely used in scenarios where there are many people, few public network base stations, and unstable network. It is special design for rescue in disaster areas such as sudden road interruptions, Internet disconnections, and power outages.
Post time: Dec-25-2023
