ABSTRACT
The electromagnetic spectrum contains a range of possible radiation frequencies. Although commercial wireless systems cover bands from a few MHz up to more than 100 GHz [1], most of the existing mobile communication systems operate at a frequency range of 300 MHz to 3 GHz with a few MHz bandwidth. However, users ranging from enterprise data centers to smart phone users require wider bandwidths. The huge demand for more spectrum bands as well as bandwidth scarcity has encouraged exploration of the millimeter-wave (mmWave) spectrum for future fifth-generation (5G) broadband mobile communications. This spectrum would allow significant expansion of the channel bandwidth and increase in data capacity [2]. The availability of a bandwidth, which is about several times that of the present cellular networks, offers an opportunity for developing multigigabit broadband wireless networks.
