Performance Evaluation of XGS-PON Optical Network Termination for Mobile Backhaul

The mobile communication network has developed rapidly, especially in this era where 5G exists. The 5G and other services are mandatory, supported by a large mobile backhaul capacity. 10-Gigabit-capable symmetric passive optical network (XGS-PON) has the potential to resolve this issue because it can deliver 10 Gbps upstream and downstream simultaneously. This study evaluates the XGS-PON's performance to implement mobile backhaul in a cellular network in Indonesia. This paper proposes a method for ONT testing that is implemented for mobile backhaul. This test method supports the evaluation of device performance in the physical layer and data link layer. The testing results confirmed that XGS-PON ONT supported mobile backhaul with a nominal rate of 9.65296 Gbps, an operating wavelength of 1269.509 nm, launch power 5.63 dBm, sensitivity -26.64 dBm, and overload -5.92 dBm. The functionality test shows that the XGS-PON ONT supports jumbo frames of 2000-9000 bytes, 4096 VLAN IDs, forward VLAN tagging, and un-tagging transparently passes the desired tagging VLANs. The IEEE 1588v2 synchronization test results show that time Synch Accuracy is 53 ns, and sync-e is 0.058 ppb for frequency offset. In conclusion, all test results have complied with ITU-T G.9807, IEEE 802.1q, and Broadband Forum technical reports except for sensitivity results that have not met the specification value of -28 dBm. This research has the potential to be recapitulated on the sensitivity parameter to achieve the specification value.