Users data of usage and the number of devices connected to the network are increasing from years to years, simply, the internet usage is growing. Due to this phenomenon, we need a decent channel capacity to keep up with it. One of the channel characteristics that affects to the capacity is channel coefficient. By this relation, we could enlarge the channel capacity by improving its channel coefficient. In this research, we conducted an analysis towards the maximum and minimum values of a channel coefficient, simultaneously defined by upper and lower threshold. The simulation on this research is using superposition of plane wave as the basic model. Previously, this model had been used on pCell technology to enlarge the multiplexing gain. However, on this research, we conducted a different approach by using the model to achieve the maximum and minimum value of the channel coefficient. At the end, we found a relation between the upper and lower threshold formulation and the channel coefficient simulation on some signal paths, with their direction randomized by uniform distribution.