A Review on Interference Management in Millimeter-Wave MIMO Systems for Future 5G Networks

摘要

Millimeter-wave (mm-wave) communication systems provide data rates in gigabits-per-second, due to large bandwidth availability used or 5G applications. Where the absorption and path loss are high in mm waves, it introduces poor propagation of sending the information. The shadowing can affect the millimeter wave to travel at long distances. Because of the high attenuation, the receiver provides low SNR value. Due to the oscillators, it causes a high interference. The interference occurred in mm wave such as inter-carrier interference, inter-block interference, phase noise, IQTM, etc. The various techniques are implemented at transmitter and receiver side to reduce the interferences. These waves are called a shorter wavelength wave, also has need to use a more number of antenna elements. Anyway, this mm-wave system has more spectral efficiency which was used for reducing the traffic demands. To overcome these problems, the beamforming was used with MEMO technology. This survey shows the effect of various interference and the cancelation techniques in downlink communications.