The specifications of passive optical network (PON) systems continue to evolve while access
systems need to accommodate an ever-widening variety of new services. To deal with the …

The Passive Optical Network (PON) has been evolving continuously in terms of architecture
and capacity to keep up with the demand for high-speed Internet access in the access …

In order to respond to the increasing diversification of requirements, studies on software-
defined access networks to enhance the flexibility of network systems continues. For fully …

We introduce a flexible, software-defined real-time multi-modulation format receiver
implemented on an off-the-shelf general-purpose graphics processing unit (GPU). The …

This paper discusses the future direction of optical access networks and proposes a new
optical access architecture that will support the evolution of optical access systems from a …

To realize optical access networks that can flexibly and quickly accommodate a variety of
new services, we need virtualization of the access systems targeting physical-layer (PHY) …

Optical access networks are replacing dedicated hardware-based architectures with
architectures centered on general-purpose servers based on network function virtualization …

Demonstration of Industrial Network Applications by PHY Softwarization for Fully Virtualized
Access Networks Page 1 Demonstration of Industrial Network Applications by PHY …

Real-time 10,000 km transmission over a straight-line link is achieved using a software-
defined multi-modulation format receiver implemented on a commercial off-the-shelf general …

This paper proposes multiplication-based parallel frequency offset compen-sation (FOC) for
virtualized access networks and demonstrates real-time softwarization of the full DSP …