Two key factors shaping the current state of increasingly advanced LTE networks, and setting the stage for future 5G networks, are massive investments in fiber optic networks and the pooling of network infrastructure. Consider C-RAN architecture–operators are colocating baseband units in centralized locations, then using fiber-based fronthaul to connect remote radio units to provide coverage and capacity in a given area.
This move toward network densification brings myriad challenges on both the technology side and the financial side of a mobile network operator’s business.
