In a SON, a new femtocell added to a micro-network actually learns from the other femtocells already on that network – optimizing its own implementation without requiring manual installation. The femtocells on a SON are in constant communication, and they autonomously can recognize and adapt to changing environmental situations, maintaining a high level of quality of service (QoS). Because there are multiple femtocells on the micro-network in communication, if one goes down, there are three or four nearby that become aware of this environmental change and instantly can pick up the lost coverage. Thus, a SON femtocell micro-network offers a robust solution with built-in redundancy.
The increased capital and operation expenses (capex and opex) placed on a carrier for Long-Term Evolution (LTE) 4G wireless technology can be staggering. However, smart choices when it comes to 4G technologies implemented can defray a good percentage of this burden and pay off in huge returns in the long run. One of the most promising 4G technologies on the horizon is Self Organizing Networks (SON) on femtocell micro-networks for such in-building or enclosed spaces as office buildings, stadiums and railroad stations.