Optimal Detection of data symbol in UDMT Massive MIMO 5G System model for high spectral efficiency and energy efficiency

detection of data symbol in Ultra-Dense Multi-Tier network (UDMT) in Massive MIMO communication and how they can support green communication. In each case we tried to find out the factors which affect channel capacity, spectral efficiency (SE) and energy efficiency (EE) and how it can be maximized. The basic idea is if these parameters are high for a given technology it means it supports or it is example of green communication. It is well known that, in classical MIMO, multiple antennas at both ends exploit wireless channel diversity to provide more reliable high-speed connections. Massive MIMO (also known as Large-Scale Antenna Systems, Very Large MIMO, Hyper MIMO, and Full-Dimension MIMO) makes a bold development from current practice using a very large number of service antennas (e.g., hundreds or thousands) that are operated fully coherently and adaptively. After the Massive MIMO technology is introduced, the differentiation and flexibility of wireless network coverage in three-dimensional space have been greatly improved. The radio wave propagation model, user behaviour and service distribution, beam management and beamforming are more complicated, flexible and difficult to measure. massive MIMO is also considered a technique to improve wireless network coverage. From another point of view, radiated power from both base stations and terminals can be scaled down, making massive MIMO also a candidate for ‘green communications.