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The Citrix mobile consumer survey in 2014 revealed that more than half the mobile subscribers were more likely to blame the mobile network operator for stalling mobile videos.
With the advent of smart devices, cloud services, newer technologies for fixed and wireless connectivity (LTE) and very impatient consumers, there is tremendous pressure to strengthen the access and mobile backhaul segment of the network.
The copper connections to the enterprise and towers can no longer suffice the exploding capacity requirements leading to increased fiber penetration. The best way, as already verified by numerous installations worldwide, is to leverage the existing fiber infrastructure such as fiber to the node or cabinet to provide cost-effective interconnection for financial to business enterprises and additionally for small to macro cellular networks. Together with the multiplexing technology the fiber-based network can be made timeless and cheap improving the power and space requirements.
However, the fiber-to-the-antenna/enterprise, like any other network, is also subject to failures which may arise due to link cuts or equipment malfunctions. Protection planning against such failures and ensuring a high level of network performance is a crucial part of network design, especially for networks where every second of the interruption in the data traffic leads to economic dismay and also exhaustion of valuable resources (time and expert personnel) that would be much appreciated elsewhere. The fronthauling or backhauling network and enterprise access networks can thus benefit from the classical technique of multipath transmission that provides redundant path or backup equipment in the case of failure.
HUBER+SUHNER Cube Optics novel semi-passive OPS especially appropriate for power, space and latency constrained fixed and wireless application acts as a samurai providing the operator a superior network that automatically detects and protects against fiber failures and minimizes data losses. The semi-passive approach is illustrated below in detail with fronthauling application scenario.