Innovative antennas for next generation of communication systems in Vietnam

Vietnam is one of the first countries in the world to successfully test the 5th Generation Mobile Network or simply 5G service. At the test, mobile internet speed has reached 1.7 Gbps, much faster than 4G and equivalent to the speed of commercial cables. 5G is recognized as the foundation for implementing the Industrial Revolution 4.0 to deploy digital economy, smart cities, smart environment, electronic citizens and government in countries like Vietnam. To satisfy all these requirements, a notable effort in the research and exploration of novel and revolutionary technologies was done and it is still on going. In particular, the need of high data rates can be satisfied increasing the available frequency bands and the spectral efficiency. At its turn, it can be obtained with the use of massive Multiple-Input Multiple-Output (MIMO) architectures. MIMO antennas are characterized by a number of radiating elements larger than the served user terminals, so that it is possible to enhance the throughput capacity. The design of an efficient MIMO system involves two main aspects, both considered here: the design of the actual antenna and of the beamforming algorithm. Different possible solutions are considered, and their performance are compared.