A5007873091- Advanced Optical Network Technologies
- Advanced Photonic Communication Systems
- Optical Network Technologies
- Software-Defined Networks and 5G
- Interconnection Networks and Systems
- Semiconductor Lasers and Optical Devices
- Photonic and Optical Devices
- Network Time Synchronization Technologies
- VLSI and Analog Circuit Testing
- Network Packet Processing and Optimization
- IPv6, Mobility, Handover, Networks, Security
Electronics and Telecommunications Research Institute
2005-2023
Korea Advanced Institute of Science and Technology
2017-2019
An optical access network plays a critical role in accommodating explosive new services such as augmented reality (AR), virtual (VR), machine-to-machine, and human-to-machine interaction applications. Continuous expansion of capacity well low latency the are very important issues to avoid loss connectivity for 5G Tactile Internet. A time-division multiplexing passive (TDM-PON) is an attractive solution provide end users residential, business, mobile applications since multiple remote nodes...
A packet transport network (PTN) for optical carrier Ethernet needs to be reliable even in a case that fault occurs on data path. To survive from the fault, protection switching which sends traffic pre‐established backup path can implemented PTN systems. Linear multi‐protocol label – profile (MPLS‐TP) environment requires performed with sub‐50 ms multiple faults paths (i.e. tunnels). The linear recovery at almost ten tunnels processed CPU. In this study, layer integrated circuit (PPSI) is...
This article reports on the design and experimental realization of packet-switched optical network (PSON) for a data center network. In PSON, an interconnect consists combination fast tunable laser (FTL), arrayed waveguide grating router, burst mode receiver (BMR). The conventional FTL transmitters can only accommodate short fixed-size photonic frame (PF) tens microseconds rather than variable-size PF due to short-term wavelength stability. By using with thermal compensation method, PSON...
In this paper, we examine the impact of photonic frame length to latency and traffic throughput in packet switching scheme with passive optical switches.
We demonstrate an all-optical switching scheme of ~10 μs time scale. The key enablers are wavelength router, tunable and burst transceiver, photonic frame wrapper, controller. verify important features their characteristics including processing expandability.
We develop the universal switch fabric that has capacity from 160 Gbps to 320 with serial interconnection at a speed of 2.5 and architecture coplanar module. The main purpose easily provides redundancy scalability as adding existed modules overcomes defect which must be modified by changing network processor on line cards owing interface. This module many queuing engine cards, two redundancy, passive backplane copper cables. It supports for sophisticated programmable QoS algorithms, distinct...
We review optical access technologies for tactile internet accommodating bandwidth intensive as well low-latency services such smart factory, remote robot control and AR/VR. Recent feasibility demonstration of testbed is also introduced.
The following description relates to a processor time synchronization apparatus and method in packet-optic data transport system which includes plurality of processors line interfaces, the capable performing reliable system's external internal high time-resolution synchronization, sharing information by use simple structure at low cost.
We experimentally demonstrate PON slicing based on virtual and 25Gbps white-box type OLT, which provides logical separation of physical resources, ensuring the connectivity, latency, throughput.
We demonstrate PON slicing for fronthaul, business, and residential services coexisting in a single ODN , ensuring independent slice performance, resource allocation by slice-aware DBA. The latency of fronthaul is less than 200 μs using Co-DBA/CTI.
We developed the universal switch fabric that has capacity from 160 Gbps to 320 with serial interconnection at a speed of 2.5 and architecture coplanar module. The main purpose easily provides redundancy scalability as adding existed modules overcomes defect which must be modified by changing network processor on line cards owing interface. This module many queuing engine cards, two redundancy, passive backplane copper cables. It supports for sophisticated programmable QoS algorithms,...