Intelligent Hybrid Beamforming Techniques in mmWave Massive MIMO Systems for 5G Networks

Abstract

proliferation of emerging megatrends (IoT, Big Data, and Cloud) and the newlinelaunch of new wireless applications with a spur in the use of multimedia content newlineare compelling new challenges for next-generation 5G wireless networks. In addition newlineto providing high data rates with extremely low latency, 5G communication is newlineexpected to meet previously unmet requirements such as support for large-scale newlineheterogeneous networks, massive increases in base station capacity, and significant newlineimprovements in user experience. newlineThe millimeter-wave spectrum has evolved as an enabler of 5G with the newlinepotential to provide enormous bandwidth easing the way to handle massive data newlinetraffic. The Physical layer techniques blended with millimeter wave spectrum can newlinehelp following generation networks enormously. The Beamforming scheme at newlinemillimeter-wave frequency has been actively investigated in recent years. The newlinetraditional Beamforming approaches are not fit for these high frequencies, hence newlinecannot fully exploit the capacity of the physical infrastructure. The aim is to evolve a newlinecellular network that remarkably pushes forward the limits of legacy mobile systems newlineacross all dimensions of performance metrics. As this research space is everincreasing newlineand innovations have spurred at all levels in 5G networks, considerable newlineprogress is required in investigating the mmWave Beamforming for millimeter-wave newlinemassive MIMO systems. The conventional digital Beamforming uses a separate RF newlinechain for each antenna, leading to high cost and hardware complexity in the system. newlinespectral efficiency. One of its kind hybrid beamforming reduces the cost and newlineovercomes the hardware limitation by using a reduced number of RF chains. newlineAt first, the thesis discusses precoding and combining (at transmitter and newlinereceiver respectively) in mmWave hybrid beamforming systems and constructs a newlinedictionary matrix containing array response vectors. Then, proposes an extended