ABSTRACT
Due to the significant increase of mobile data in recent years, there is an emerging demand for capacity and speed for the next generation of wireless network to provide wireless data rate of several tens of gigabit/s [270]. It requires developing more spectrum-efficient wireless transmission with large bandwidth. A depiction of the evolution of data rate achieved by wireless system, known as Edholm’s law of data rates [271], is shown in Figure 13.1. It can be observed that around the year of 2020 the wireless data rate will reach around 100 gps.
