IMPROVING THE EFFICIENCY OF WIRELESS COMMUNICATION SYSTEMS BASED ON MIMO AND MU-MIMO TECHNOLOGIES
Keywords:
MIMO, MU-MIMO, beamforming, antenna arrays, wireless communication systems, spatial transmission.Abstract
Modern wireless communication systems require high data rates, reliable connectivity, and the ability to serve multiple users simultaneously. In this context, multi-antenna transmission technologies have become one of the most effective solutions for improving system performance. This paper discusses the fundamental principles of MIMO (Multiple-Input Multiple-Output) and MU-MIMO (Multi-User MIMO) technologies and their role in enhancing the efficiency of wireless communication systems. The advantages of using multiple antennas at the transmitter and receiver sides are analyzed, with particular emphasis on spatial transmission and beamforming techniques. It is shown that MU-MIMO technology enables simultaneous data transmission to multiple users within the same frequency spectrum by exploiting spatial separation, thereby increasing system throughput and reducing inter-user interference. The importance of beamforming and antenna arrays in improving signal quality through coherent signal combining is also highlighted. In addition, practical applications of MIMO and MU-MIMO technologies in modern wireless systems such as 4G, 5G, Wi-Fi, IoT, and smart city infrastructures are discussed.
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