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Today, deployment of optical fiber has offered large transmission capacitywhich cannot be efficiently utilized by the electronic switches. Rather,Integrated Hybrid Optical Network (IHON) is a promising approach which combinesboth packet and circuit switching techniques. As a result, it achievesefficient utilization of the bulk capacity and guarantees absolute Quality ofService (QoS) by optimizing the advantages of the two switching schemes whilediminishing their disadvantages. Transpacket has developed a Fusion nodeimplementing IHON principles in Ethernet for the data plane. Hence, this paperinvestigates and evaluates IHON network for 5G access networks. The simulatedresults and numerical analysis confirm that the Packet Delay Variation (PDV),Delay and Packet Loss Ratio (PLR) of Guaranteed Service Transport. (GST)traffic in IHON network met the requirements of 5G mobile fronthaul using CPRI.The number of nodes in the network limits the maximum separation distancebetween Base Band Unit. (BBU) and Remote Radio Head (RRH), link length; forincreasing the number of nodes, the link length decreases. In addition to this,we verified how the leftover capacity of fusion node can be used to carry thelow priority packets and how the GST traffic can have deterministiccharacteristics on a single wavelength by delaying it with Fixed Delay Line(FDL). For example, for LSM 1GE=0.3 the added Statistical Multiplexing (SM)traffic increases the 10GE wavelength utilization up to 89% without any lossesand with SM PLR=0.001 up to 92% utilization.

Integrated Hybrid Optical Networking (IHON) /Fusion for 5G Access Networks