Interference characteristics and Capacity in Ultra-Dense Wireless Networks

Abstract: Because of the rapid improvement of wireless communication, the requirement for data traffic is increasing faster and faster. How to provide enough service for the increasing user amount is a problem while designing the wireless systems. Making the wireless network more density seems to be an obvious solution. But more base stations means more cost, to study if these cost is helpful for improving communication quality is the mean direction of our study. In the study, functions that describe relationships between system performance and network size are monitoring in terms of average SINR, average capacity and area capacity under different reuse factor, base station transmission power and shadow fading variance value by Matlab simulation. Also in the worst condition is studied. We find in the research that higher density network can provide higher area capacity with the price of average SINR decreases while the system must be designed to fulfill the requirement of users in worst condition. To compromise these factors, the network density should be proper to both provide enough average SINR and area capacity.