Smartphone use is the most significant driver of traffic growth in mobile backhaul technology as these devices become more integrated into our business and personal lives. The traditional backhaul technology, copper, has been in decline because it cannot keep up with these capacities, resulting in greater use of fiber and microwave technology.
Packet optical technologies enabling these high-capacity solutions combine advanced traffic management and WDM capabilities. As SDN technology works its way into the backhaul, the platforms of today need to be SDN ready. Fiber optics, though the preferred transport, are not always available or cost effective in these applications. Microwave is an alternative solution while waiting for fiber to be trenched or as a low-cost transport method.
Small cell architecture using C-RAN and WDM transport technology will reduce the power, footprint, and complexity of the small cell. The C-RAN architecture centralizes the base band unit (BBU) at the macro site or CO using Common Public Radio Interface (CPRI™) over fiber optic or microwave transport to the remote radio head (RRH) deployed at the small cell site.
This combination of transport technology, whether full SDN-capable or SDN-ready, enables the highest optimization over the BH, offering:
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