One of key requirements for 5G is enhancement of cell-edge performance, which means that every
user should be supported with Gigabit experience anywhere.
Conventional approaches to enhance the cell-edge performance mainly focus on managing interference (e.g., interference cancellation, interference avoidance), by dealing with interference as a Gaussian. However, it is proved that the
worst-case additive noise in wireless networks with respect to the channel capacity has a Gaussian distribution.
From this observation, one can expect that the channel capacity can be increased by a nonGaussian interference design which makes InterCell Interference (ICI) non-Gaussian.
The distribution of ICI depends on the modulation schemes of the interfering BSs.
Therefore, an active interference design for improved cell-edge performance can be achieved by applying a new type of modulation.