I. Introduction
Future 5G cellular networks come with fundamental changes to satisfy the overwhelming capacity demands, brought on by the continuing advances and discoveries in computing and communications [1]– [4]. 5G cellular networks are expected to provide data rates of multi-Gbps range for bandwidth-intensive multimedia applications with stringent quality of service (QoS) requirements (e.g., uncompressed video streaming requires mandatory rate of 1.78 or 3.56 Gbps). To achieve this, more spectrum availability is essential. Millimeter wave (mmWave) communication is a very promising solution for future 5G cellular networks to overcome the global bandwidth shortage at saturated microwave spectrum for most commercial access technologies [1].